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MP7720DS-LF - 20W Mono Class-D Audio Amplifier | MPS
MP7720DS-LF

MP7720DS-LF - 20W Mono Class-D Audio Amplifier | MPS

Monolithic Power Systems MP7720DS-LF is a mono 20W Class-D audio amplifier operating from 9.5V to 24V in an 8-pin SOIC package. It uses a single-ended output structure and integrates 180mΩ power MOSFETs, startup and shutdown pop-elimination circuitry, short-circuit protection, and mute or standby control. The -40°C to +85°C operating range and integrated protection suit compact audio systems where component count and board area must be controlled. A Class-D audio amplifier is a switching power amplifier that delivers audio through rapidly switched output transistors. Within the amplifier hierarchy, the MP7720 is an integrated audio power amplifier and power-management IC rather than a low-power signal amplifier. Its efficiency-oriented Class-D topology can deliver substantial audio output while reducing heat relative to a linear amplifier when operated within the manufacturer’s specified electrical and thermal limits. The MP7720’s primary verified specifications are 20W output power, a 9.5V to 24V supply range, and one mono channel. Its integrated 180mΩ power MOSFETs reduce the need for external output transistors. Additional functions include startup and shutdown pop elimination, short-circuit protection, and mute or standby operation. These features make the device relevant to mono speakers, compact consumer audio products, powered speakers, sound bars, and auxiliary audio modules. Technically, the single-ended output topology supports a compact implementation without requiring a full-bridge output stage. Short-circuit protection improves resilience when a speaker wiring fault occurs, while mute and standby provide external control for quiet power management. The manufacturer identifies the MP7720 as a second-generation fully integrated audio amplifier, emphasizing its integration of the power stage and control functions. Typical applications include powered speakers, compact stereo systems using one channel per module, sound bars, portable or dock-based speakers, and industrial audio products with a single speaker. The 24V upper supply limit is a key design constraint; higher-voltage amplifier modules are not automatically suitable replacements. Speaker impedance, output-filter selection, supply decoupling, thermal performance, and control sequencing must be checked against the manufacturer datasheet. For PCB design, keep input, supply, output, and ground paths compact and route power-current loops with low resistance. The switching output requires an appropriate EMI-conscious layout and the prescribed LC output filtering. Verify thermal rise at worst-case supply, load, and ambient conditions because a stated 20W capability does not remove board-level heat dissipation requirements. This page consolidates verified manufacturer and distributor information, pricing availability, replacement evidence, and practical implementation guidance for engineers evaluating the MP7720DS-LF.

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MP7720DS-LF-Z - 20W Mono Class-D Amplifier | MPS
MP7720DS-LF-Z

MP7720DS-LF-Z - 20W Mono Class-D Amplifier | MPS

The Monolithic Power Systems MP7720DS-LF-Z is a mono 20 W Class-D audio amplifier operating from 9.5 V to 24 V, delivering 20 W into 4 ohms with 93% efficiency in an 8-SOIC package. It integrates 180 mΩ power MOSFETs, startup and shutdown pop elimination, short-circuit protection, mute/standby control, thermal protection, and shutdown functionality. The single-ended output structure is designed to reduce external component count and solution size. A Class-D audio amplifier is a switching power amplifier that uses pulse-width modulation to drive an output stage efficiently. The MP7720 belongs to the Class-D amplifier, audio power-amplifier, integrated audio-amplifier, and power-management semiconductor hierarchy. Its integrated MOSFET output stage allows a compact speaker-driver solution while maintaining high conversion efficiency. The verified specifications identify a 9.5 V to 24 V supply range, 20 W output at 4 ohms, 60 dB gain-related performance, 1.5 mA quiescent current, and a -40°C to +85°C operating range. The amplifier is specified for mono audio, with Class-D topology and single-ended output. Protection and control features reduce the need for additional external circuitry in suitable speaker applications. Typical uses include compact speaker systems, portable audio products, audio accessory designs, industrial sound equipment, USB-powered audio projects, and small consumer audio products. The 20 W rating is most relevant when the speaker impedance and supply conditions are verified against the manufacturer datasheet. Efficiency and thermal performance must be considered together because a Class-D amplifier can still dissipate meaningful heat at high output power. Designers should place the input, supply, and output decoupling capacitors according to the manufacturer reference circuit, keep the high-current output loop compact, and provide adequate copper for thermal dissipation. The output should be checked for correct startup and shutdown sequencing to minimize audible pops. This page consolidates verified distributor data, manufacturer information, cross-reference results, and application guidance for the MP7720DS-LF-Z.

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MP7722DF-LF-Z - Stereo 2x20W Class-D Amplifier
MP7722DF-LF-Z

MP7722DF-LF-Z - Stereo 2x20W Class-D Amplifier

The Monolithic Power Systems MP7722DF-LF-Z is a stereo, single-ended Class-D audio amplifier delivering 2 x 20 W into 4 ohm speakers from a 9.5 V to 24 V supply. It uses a TSSOP-20 package and integrates 180 mOhm power MOSFETs, startup and shutdown pop elimination, short-circuit protection, and mute or standby control. The device is intended for compact, high-efficiency audio systems where two amplified speaker outputs are required without external output transistors. A Class-D audio amplifier is a power amplifier category that uses switching transistors to deliver energy to a speaker efficiently. Unlike a linear audio amplifier, a Class-D stage reduces internal power dissipation by rapidly switching the output between supply rails and filtering the resulting pulse-width-modulated waveform. MP7722 uses a single-ended output structure, making it suitable for portable speakers, consumer audio products, and powered speaker modules. The verified manufacturer data identifies the MP7722 as a second-generation fully integrated audio amplifier. Its integrated 180 mOhm MOSFETs reduce external component count and help simplify board layout. Startup and shutdown pop elimination improves user experience by limiting audible transients during power-state changes. Short-circuit protection adds robustness in speaker systems, while mute and standby functions provide control for system integration. The MP7722DF-LF-Z operates across a 9.5 V to 24 V supply range and is specified for output power up to 20 W per channel into 4 ohms. The verified specifications identify a -40 C to +85 C operating-temperature range and RoHS compliance. These details make the amplifier suitable for equipment operating across commercial and industrial temperature ranges, subject to proper layout, thermal management, and speaker-load verification. Typical applications include portable Bluetooth speakers, multimedia speaker systems, powered audio accessories, compact consumer audio products, and industrial alarm or announcement systems. The TSSOP-20 package is useful when board area is constrained, but the exposed-pad thermal path and output-current capability must be considered. Input filtering, speaker protection, decoupling, and amplifier shutdown sequencing should follow the manufacturer guidance. This product page combines verified manufacturer specifications, distributor availability references, application guidance, and design notes. It also distinguishes verified electrical data from parameters requiring an engineering datasheet review, avoiding unsupported assumptions about performance, pin names, pricing, or lifecycle status.

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MP7731DF-LF-Z - 30W Mono Class-D Amplifier | MPS
MP7731DF-LF-Z

MP7731DF-LF-Z - 30W Mono Class-D Amplifier | MPS

Monolithic Power Systems MP7731DF-LF-Z is a mono Class-D audio amplifier rated for 5W to 30W output, with a 9.5V to 18V supply range and integrated 180mΩ power MOSFETs in a 20-pin TSSOPF-EP package. It uses a full-bridge output structure for bridged mono operation and integrates startup and shutdown pop elimination, short-circuit protection, and mute or standby control. The device operates from -40°C to +85°C and is identified as RoHS compliant. A Class-D audio amplifier is a switching power-conversion device that uses pulse-width modulation to reproduce an analog audio waveform at the speaker output. In a bridged mono configuration, the differential output can provide more voltage swing to a speaker than a conventional single-ended amplifier. The MP7731 belongs to the audio amplifier hierarchy and the broader integrated-circuit and power-management semiconductor categories. The principal feature of the MP7731DF-LF-Z is its 30W maximum mono output capability from a 9.5V to 18V supply. Integrating 180mΩ power MOSFETs reduces the need for external output transistors and simplifies the audio power stage. Startup and shutdown pop elimination helps suppress audible transients, while integrated short-circuit protection improves robustness in speaker-drive applications. Mute and standby modes support controlled power management. The full-bridge topology allows the amplifier to drive a speaker differentially, where the voltage applied across the speaker is the difference between the two switching outputs. This arrangement increases usable output-voltage swing for a given supply. The MP7731 is a second-generation fully integrated MPS audio amplifier, combining the switching output stage, protection functions, and control features in one 20-TSSOPF-EP device. Typical uses include portable speakers, consumer audio equipment, soundbars, multimedia systems, and other mono speaker drives operating from a 12V-class supply. It is particularly suitable where compact solution size is important and a bridged Class-D output provides an efficient way to deliver several watts to tens of watts of audio power. Designers should follow the manufacturer layout and filtering guidance, including correct inductor placement and the specified start winding orientation. Component values, thermal performance, output-filter selection, and speaker loading must be verified against the manufacturer datasheet before production release. The exposed-pad package also requires careful PCB thermal design. This product page consolidates the verified manufacturer features, distributor package information, operating limits, and same-family alternatives with practical selection and layout guidance. It distinguishes verified facts from fields that still require manufacturer confirmation, helping engineers evaluate the MP7731DF-LF-Z before requesting an engineering quotation.

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MP7740DN-LF-Z - 15W Mono Class-D Audio Amplifier | MPS
MP7740DN-LF-Z

MP7740DN-LF-Z - 15W Mono Class-D Audio Amplifier | MPS

The Monolithic Power Systems MP7740DN-LF-Z is a mono 15W Class-D audio amplifier with a 9.5V to 36V supply range, integrated 250mΩ power MOSFETs, and short-circuit protection in an 8-pin SOIC package with exposed pad. It is designed to drive 4Ω speakers through a single-ended output structure while reducing board size and external power-stage complexity. A Class-D audio amplifier is a switching power amplifier that delivers audio energy through rapidly alternating output voltages. In the broader hierarchy, it is an audio amplifier, analog signal-processing IC, power-management semiconductor, and surface-mount device. Compared with a conventional linear amplifier, the MP7740 architecture is intended to reduce wasted power and heat while retaining the signal path required for compact speaker systems. The verified manufacturer information identifies 15W output power, 250mΩ integrated power MOSFETs, startup and shutdown pop-elimination circuitry, and short-circuit protection. The 8-SOICE package and integrated power stage can simplify a mono speaker amplifier implementation compared with a discrete MOSFET output stage. A 4Ω speaker load is explicitly supported by the single-ended output structure, while the exact thermal and layout limits must be taken from the manufacturer datasheet. The MP7740 is positioned for portable or compact audio products where speaker drive current, board area, and startup behavior matter. It can be used in consumer speaker designs, portable audio equipment, soundbars, and auxiliary audio modules, provided the supply voltage, speaker impedance, thermal conditions, and input signal levels match the device specifications. The absence of a verified switching-frequency value, gain setting, and exact pin-level application circuit in the supplied data prevents adding unconfirmed parameters. Designers should pay particular attention to the exposed thermal pad, copper area, supply decoupling, output filtering, and speaker-load wiring. The integrated protection circuit is useful, but it does not remove the need for correct layout and thermal management. Because the target is a single-ended mono amplifier, system-level headroom and filter selection should be evaluated together with the speaker impedance rather than treated as independent choices. This page consolidates the verified manufacturer and distributor information for MP7740DN-LF-Z, including the 15W Class-D architecture, supply range, package information, sourcing links, and engineering-focused selection guidance. It does not invent pricing, pin functions, electrical limits, or drop-in replacements that were not confirmed by the supplied records.

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MP7741DQ-LF-P - 10W Mono Class-D Audio Amplifier | MPS
MP7741DQ-LF-P

MP7741DQ-LF-P - 10W Mono Class-D Audio Amplifier | MPS

The Monolithic Power Systems MP7741DQ-LF-P is a 10 W mono Class-D audio amplifier with a single-ended output structure, a 9.5 V to 36 V supply range, and a surface-mount 10-QFN package. The device integrates 250 mΩ power MOSFETs, startup and shutdown pop-elimination circuitry, short-circuit protection, and thermal protection to support compact speaker-driver designs. A Class-D audio amplifier is a switching amplifier that uses transistor stages to deliver audio energy efficiently. Compared with a linear amplifier, its MOSFET output stage can reduce power dissipation and support higher output power from a compact package. The MP7741 belongs to the integrated audio-amplifier hierarchy: Class-D amplifier, audio power amplifier, speaker driver, and power-management IC. Key features include a 10 W output capability into an 8 Ω speaker, mono single-ended operation, and integrated protection functions. The manufacturer describes the amplifier as suitable for audio applications where compactness, efficiency, and reduced external discrete components are important. Its integrated 250 mΩ MOSFETs reduce the need for separate output power transistors, while the protection circuits address fault conditions that can otherwise damage an audio output stage. The MP7741 uses a Class-D topology with a single-ended output, making board integration and speaker connection practical for portable audio, consumer audio, and auxiliary speaker systems. Designers should still account for supply decoupling, amplifier enable or shutdown sequencing, speaker loading, thermal dissipation, and the inductor requirements associated with the filtering and output network specified by the manufacturer design guidance. Typical applications include compact speaker systems, portable audio products, sound bars, multimedia equipment, and auxiliary audio modules. Compared with a discrete Class-D output stage, the integrated device can reduce board area and assembly complexity. Compared with a larger multi-channel amplifier, the MP7741 is optimized for a single mono speaker channel, allowing designers to use multiple devices when stereo or multichannel amplification is required. A key design consideration is thermal management. Although the integrated structure improves efficiency, sustained high output power still requires adequate copper area and a supply path capable of delivering the required current. The manufacturer evaluation board EV7741DQ-00A is a useful reference for evaluating the MP7741 amplifier implementation. Designers should follow the manufacturer’s recommended output filtering, input, supply, and layout arrangements rather than inferring them solely from the package dimensions. This page combines the verified manufacturer product information and distributor listings with application guidance and engineering considerations. It also distinguishes verified technical facts from parameters that require confirmation in the manufacturer datasheet, helping engineers evaluate the MP7741DQ-LF-P for speaker-driver designs without relying on unverified substitute specifications.

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MP7741DQ-LF-Z - 10W Mono Class D Amplifier | MPS
MP7741DQ-LF-Z

MP7741DQ-LF-Z - 10W Mono Class D Amplifier | MPS

The Monolithic Power Systems MP7741DQ-LF-Z is a 10 W mono Class D audio amplifier with a single-ended output, integrated 250 mΩ power MOSFETs, startup and shutdown pop elimination, and short-circuit protection. It is supplied in a 10-VFDFN exposed-pad package with an indicated 3 mm by 3 mm footprint. The device targets compact audio systems requiring efficient amplification without a conventional linear output stage. A Class D audio amplifier is a switching power amplifier that uses pulse-width modulation to drive an output MOSFET bridge and reconstruct the audio waveform through filtering. Compared with linear audio amplifiers, the Class D category offers higher power-conversion efficiency and lower output-stage dissipation, making it useful for portable speakers, compact consumer equipment, and space-constrained audio products. The MP7741 uses a single-ended output structure rather than a bridge-tied load, so the speaker connection and output-filter requirements must follow the manufacturer guidance. Key verified features include 10 W mono Class D operation, integrated 250 mΩ power MOSFETs, depop circuitry for startup and shutdown, and short-circuit and thermal protection features reported by distributors. The device is specified for a -40°C to 125°C operating-temperature range. The exposed-pad package helps remove heat from the power stage, although final thermal performance depends on the PCB copper area, power dissipation, ambient temperature, and load impedance. The MP7741 is intended for analog-input audio paths where a small, efficient mono output stage is useful. Typical applications include compact speakers, portable audio products, soundbars, consumer audio modules, and auxiliary speaker systems. Its single-ended output should be considered carefully when selecting speaker wiring, output filtering, and grounding arrangements. The manufacturer evaluation board EV7741DQ-00A provides a practical reference for evaluating the amplifier, although the supplied verified data does not provide its schematics or component values. Designers should verify the exact pin names, exposed-pad connection, recommended input and output filtering, and speaker impedance against the current manufacturer datasheet before layout release. [DATA_NEEDED: exact electrical limits, supply-voltage range, output-power conditions, efficiency, THD+N, gain settings, and recommended filter values] were not present in the supplied verified data and are intentionally not guessed. Pricing and stock status must likewise be confirmed at the time of quotation. This page combines verified manufacturer and distributor information, same-package replacement status, and application-oriented design guidance. It is intended to help engineers identify the correct amplifier class, package, thermal considerations, and sourcing questions before requesting a quote.

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MP7742DF-LF-Z - 2x15W Stereo Class-D Audio Amplifier
MP7742DF-LF-Z

MP7742DF-LF-Z - 2x15W Stereo Class-D Audio Amplifier

The Monolithic Power Systems MP7742DF-LF-Z is a 2-channel stereo Class-D audio amplifier IC delivering 2 x 15 W into 4-ohm speakers in a 20-pin TSSOPF exposed-EP package. It is designed for compact, high-efficiency audio systems where integrated power MOSFETs, short-circuit protection, thermal protection, and startup/shutdown pop elimination reduce external circuitry. The verified distributor listings identify the device as an active, lead-free, RoHS3-compliant, surface-mount stereo audio amplifier. What is a Class-D audio amplifier? A Class-D amplifier is a switching power amplifier that drives a speaker through a PWM output stage rather than continuously dissipating signal power in a linear output transistor. This topology provides high efficiency and compact integration, making it part of the audio amplifier IC family and broader power-management semiconductor hierarchy. The MP7742 is intended for speaker-driving applications where low board area and integrated protection are valuable. Verified product information highlights include 15 W per channel at 4 ohms, two-channel stereo operation, Class-D output, integrated 250 mΩ power MOSFETs, startup/shutdown pop elimination, and short-circuit and thermal protection. The package is identified as 20-pin TSSOPF with an exposed pad and tape-and-reel packaging. The datasheet search result also reports a 13-page PDF, but no official manufacturer PDF URL was supplied in the verified data. Typical applications include compact stereo speakers, portable audio products, consumer audio equipment, USB or powered speaker systems, small multimedia speakers, and auxiliary audio modules. Compared with a linear audio amplifier, the switching Class-D architecture reduces wasted power in the output stage, but correct filtering, thermal design, speaker impedance, and supply decoupling remain essential. A 4-ohm load is explicitly identified for the 15 W-per-channel specification; operation below the datasheet's limits should be avoided. When designing a board around the MP7742DF-LF-Z, preserve the exposed-pad thermal path and follow the manufacturer layout guidance for power and audio traces. Place input, filter, and output-network components close to their associated pins, and use an appropriately rated speaker and power supply. The verified data does not provide the complete electrical limits, pin names, exact filter values, or recommended operating-voltage range, so those details must be confirmed in the manufacturer datasheet before production release.

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MP7745DF-LF-Z - 2x20W Class-D Stereo Amplifier | MPS
MP7745DF-LF-Z

MP7745DF-LF-Z - 2x20W Class-D Stereo Amplifier | MPS

The Monolithic Power Systems MP7745DF-LF-Z is a two-channel, single-ended Class-D stereo audio amplifier that delivers 20 W per channel into 4 Ω from a 9.5 V to 26 V supply. It is packaged in a 20-pin TSSOPF with an exposed pad and integrates 250 mΩ power MOSFETs. The device also provides startup and shutdown pop elimination and short-circuit protection. Its fully integrated amplifier architecture reduces board area by eliminating external output MOSFETs, while the single-ended output structure supports compact speaker-driving solutions. A Class-D audio amplifier is a switching power amplifier that uses PWM-related transistor operation to deliver audio energy efficiently compared with a conventional linear amplifier. The MP7745 belongs to the hierarchy Class-D amplifier → audio amplifier → analog power amplifier → power-management semiconductor. This category is especially useful for portable speakers, compact consumer audio equipment, and other systems where speaker output power and board area are important. Key features include 2 × 20 W stereo output, a 9.5 V to 26 V supply range, integrated 250 mΩ power MOSFETs, single-ended outputs, short-circuit protection, and startup/shutdown pop elimination. The MP7745 is intended for surface-mount designs using its exposed-pad TSSOP package. The verified distributor listing describes the MP7745DF-LF-Z as a lead-free, RoHS-compliant amplifier in a 20-TSSOPF-EP package. The MP7745’s integrated output stage simplifies the power layout, but the exposed pad still requires careful thermal design. The LC output-filter network is critical because Class-D outputs contain high-frequency switching energy. Inductor selection, capacitor placement, speaker wiring, and return-current paths should follow the manufacturer’s recommended application circuit. The evaluation board EV7745DF-01A provides a manufacturer-supported reference for evaluating the MP7745 in a stereo speaker amplifier design. Typical uses include portable Bluetooth speakers, compact stereo speakers, multimedia speaker systems, small audio consoles, and consumer products requiring two amplified speaker channels. The 2 × 20 W capability makes the part appropriate for low-impedance speakers when the supply and thermal limits are respected. Compared with a discrete Class-D design, integrated MOSFETs can reduce component count and simplify assembly, although thermal performance still depends on PCB copper area, load impedance, output waveform, and ambient temperature. For a new design, use the MP7745DF-LF-Z when a compact, integrated stereo Class-D solution is preferred over a discrete output stage. Verify the exact pinout, recommended LC filter, input coupling, supply decoupling, and exposed-pad land pattern against the manufacturer datasheet. This page combines the verified specifications, source links, application guidance, and drop-in comparison framework needed for engineering evaluation.

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MP7747DQ-LF-P - 20W Mono Class D Audio Amplifier | MPS
MP7747DQ-LF-P

MP7747DQ-LF-P - 20W Mono Class D Audio Amplifier | MPS

The Monolithic Power Systems MP7747DQ-LF-P is a 20 W, single-channel, single-ended Class D audio amplifier operating from 9.5 V to 36 V in a 10-pin QFN with exposed pad package. It supports 20 W output at 24 V into a 4 ohm load, with THD+N of 0.02% at 1 W. The amplifier also provides 91% efficiency at 20 W into an 8 ohm load and low typical output noise of 103 µV. A Class D amplifier is a switching audio power amplifier whose output stage operates between active and inactive states instead of dissipating a continuous quiescent current through linear output transistors. This improves conversion efficiency while PWM-based switching creates a modulated output waveform that must pass through a speaker-network filter before driving a conventional speaker. The MP7747 uses MPS variable-frequency topology to provide high fidelity, fast response, and operation from a single power supply. The MP7747 integrates 250 mΩ power MOSFETs, start-up and shutdown pop elimination, and short-circuit protection. Its switching frequency can reach 1 MHz, reducing the size and propagation delay of the output LC filter. The mono, single-ended architecture suits compact speaker systems that need substantial output from a relatively compact amplifier module. Key application considerations include output-current capability into 4 ohm and 8 ohm speakers, supply decoupling, exposed-pad thermal management, filter selection, and correct grounding. The integrated protections simplify short-circuit handling, but designers must still verify maximum output power, copper temperature, and speaker impedance under worst-case supply and thermal conditions. The MP7747 is suitable for portable speakers, multimedia speakers, compact consumer audio, industrial audio modules, and powered speaker subsystems where a mono 20 W Class D amplifier is sufficient. The official Monolithic Power Systems product page identifies the MP7747 as a fully integrated Class D audio amplifier with a single-ended output structure.

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MP7747DQ-LF-Z - 20W Mono Class-D Audio Amplifier | MPS
MP7747DQ-LF-Z

MP7747DQ-LF-Z - 20W Mono Class-D Audio Amplifier | MPS

Monolithic Power Systems MP7747DQ-LF-Z is a mono 20 W Class-D audio amplifier with a single-ended output stage, integrated 250 mΩ power MOSFETs, startup/shutdown pop elimination, short-circuit protection, and thermal protection. The device is supplied in a 10-QFN surface-mount package and is intended for compact speaker-driving systems. The verified distributor data identifies it as a one-channel Class-D amplifier, while the manufacturer describes the MP7747 family as capable of delivering 20 W into a 4 Ω speaker. A Class-D audio amplifier is a switching power amplifier that uses pulse-width-modulated output signals to drive a loudspeaker through a filtering network. Compared with a linear amplifier, the Class-D topology can provide higher efficiency and lower heat dissipation in portable or space-constrained equipment. The MP7747 integrates the power devices and protection functions into one package, reducing external component count and simplifying implementation compared with a discrete switching output stage. The MP7747 is specifically positioned for mono audio reproduction, including portable speakers, compact consumer audio products, and small embedded audio systems. Its single-ended output architecture is intended to provide a straightforward connection to a speaker load after the required output filtering and decoupling. The verified product information does not provide the complete pin names, electrical limits, gain settings, or recommended PCB land pattern, so those details must be confirmed against the manufacturer datasheet before layout or firmware integration. The integrated protection functions are important for portable equipment because they help manage startup behavior, shutdown behavior, overload conditions, and thermal stress. Pop elimination can reduce audible transients during startup or shutdown, while short-circuit protection helps protect the amplifier when the speaker connection is abnormal. These functions do not remove the need to observe the datasheet’s operating limits and speaker wiring requirements. For layout, the MP7747 should be placed according to the manufacturer’s recommended land pattern and with short, low-inductance connections between the amplifier, input network, output filter, supply decoupling, and speaker load. Power and ground paths require particular care because switching audio amplifiers can produce high transient currents. The exact input capacitor, output filter, supply voltage, speaker impedance, and thermal limits are not included in the verified data and require datasheet confirmation. This page combines the verified distributor and manufacturer descriptions for the MP7747DQ-LF-Z with practical selection guidance. It is intended to help engineers identify whether the part’s 20 W mono Class-D capability and integrated protection functions fit a target speaker system, while clearly separating verified information from parameters that still require confirmation from the manufacturer datasheet.

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MP7748DF-LF-Z - 50W Class-D Audio Amplifier | MPS
MP7748DF-LF-Z

MP7748DF-LF-Z - 50W Class-D Audio Amplifier | MPS

The Monolithic Power Systems MP7748DF-LF-Z is a fully integrated Class-D audio amplifier that delivers 20W per channel into a 4Ω load in stereo single-ended operation or 50W into a 6Ω load in mono bridge-tied-load operation at 24V VDD. The device is supplied in a 28-pin TSSOP-EP surface-mount package and includes integrated 250mΩ power MOSFETs. A Class-D audio amplifier is a switching amplifier that uses pulse-width modulation to deliver speaker power efficiently while reproducing the Class A/B-like audio fidelity described by the manufacturer. The MP7748 belongs to the audio-amplifier, analog-output, power-management-IC, and semiconductor hierarchies. Its switching output stage reduces dissipation compared with a linear amplifier, while integrated protection and control circuitry simplify portable and compact audio designs. Verified performance features include 20W per channel into 4Ω in stereo single-ended mode, 50W into 6Ω in mono bridge-tied-load mode at 24V VDD, and THD+N of 1% at 1W into an 8Ω load in single-ended configuration. The datasheet snippet reports 103µV noise in single-ended configuration. Integrated features include startup and shutdown pop elimination, short-circuit protection, and 4.5A short-circuit current limiting, with automatic restart after the fault clears. The amplifier supports either two stereo single-ended outputs or one mono bridge-tied-load output. This flexibility permits the same device family to address stereo speakers, compact subwoofers, multimedia speakers, consumer audio equipment, and powered portable equipment. At 24V VDD, its available output-power capability is substantially higher than devices rated only for low-voltage portable applications. Output topology is the principal design consideration. Single-ended mode drives each speaker terminal relative to ground, whereas bridge-tied-load mode uses both output channels so the speaker sees the differential voltage. The latter increases available voltage swing and supports the 50W mono result, but it must not be used with a speaker connected from either output to ground. Verify pin functions, exposed-pad layout, decoupling, thermal performance, and output topology against the manufacturer datasheet before layout release. This product page consolidates verified manufacturer specifications, distributor listing data, package information, and practical selection guidance. Pricing, detailed electrical limits, full pin naming, compliance declarations, and lifecycle status remain dependent on current authorized-source data because those values were not established by the supplied search extract.

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MP7748SGF - 2x30W Stereo Class D Amplifier | Monolithic Power Systems Inc.
MP7748SGF

MP7748SGF - 2x30W Stereo Class D Amplifier | Monolithic Power Systems Inc.

The Monolithic Power Systems Inc. MP7748SGF is a Class D audio power amplifier rated for 2 x 30 W stereo single-ended output or 60 W mono bridge-tied-load output. The verified manufacturer search material identifies a 28-pin TSSOP exposed-pad package and an integrated 200 mΩ power-MOSFET output stage. It is designed for compact, high-efficiency speaker-drive solutions where analog Class A/B fidelity is desired with Class D operating efficiency. A Class D audio amplifier is a switching power amplifier that delivers energy to speakers through a continuously switching output stage. Compared with a linear Class A/B amplifier, its practical advantage is lower output-stage dissipation and higher efficiency, although filtering is still required to remove switching-frequency energy. In stereo mode, the MP7748SGF uses two independent single-ended speaker outputs; in mono mode, its outputs can be combined in bridge-tied-load configuration to double the voltage swing delivered to one speaker while avoiding a DC offset across the speaker. Key verified features include integrated 200 mΩ power MOSFETs, startup and shutdown pop-elimination circuitry, and short-circuit protection. The manufacturer material describes a proprietary variable-frequency topology intended to provide high fidelity comparable to Class A/B amplification. Under 24 V VDD, the manufacturer material states capability for 30 W per channel into a 4 Ω load in single-ended operation and 60 W into an 8 Ω speaker in bridge-tied-load operation. The exposed pad supports heat transfer from the power stage, but thermal performance still depends on PCB copper, layer count, airflow, load duration, and adjacent heat sources. Typical uses include consumer speakers, multimedia audio, compact stereo systems, sound bars, portable powered speakers, and mono subwoofer or full-range speaker designs. The MP7748SGF is appropriate when local analog amplification is preferred and a Class D efficiency advantage is useful, but it may not suit systems that require a digital input because the verified material identifies an analog-input family. For layout, follow the manufacturer datasheet connection and thermal recommendations exactly. Keep the exposed-pad thermal path unobstructed, provide adequate input and output filtering, and account for switching-node layout and ground-return control. Do not assume a generic 28-pin footprint or replace the amplifier without checking exposed-pad geometry, pin names, thermal requirements, and load compatibility. This page consolidates manufacturer specifications, distributor listings, cross-reference evidence, and practical Class D design guidance. Exact pricing, lifecycle status, complete electrical limits, and several physical details were not supplied by the verified sources and are therefore identified rather than guessed.

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MP7748SGF-Z - 60W Class D Audio Amplifier | MPS
MP7748SGF-Z

MP7748SGF-Z - 60W Class D Audio Amplifier | MPS

The Monolithic Power Systems MP7748SGF-Z is a fully integrated Class D audio amplifier capable of delivering 2 x 30 W stereo single-ended output or 60 W mono bridge-tied-load output in a 28-pin TSSOP-EP package. The verified family data identifies integrated 200 mΩ power MOSFETs, startup and shutdown pop-elimination circuitry, and short-circuit protection. A Class D audio amplifier is a switching power amplifier that uses pulse-width modulation to drive speakers with high efficiency while filtering the switching waveform into an audio output. It belongs to the audio amplifier hierarchy, where its efficiency and output power can exceed those of conventional linear Class A/B amplification. The MP7748S uses proprietary variable-frequency topology and is designed for compact consumer-audio and multimedia systems. The amplifier supports two 30 W channels into 4 Ω speakers when configured as single-ended stereo, or one 60 W channel into an 8 Ω speaker when its outputs are combined in bridge-tied-load mode. This flexibility allows one device family to address stereo speakers, a mono subwoofer, a compact monitor, or a consumer-audio terminal. Integrated power MOSFETs reduce external component count and simplify the output stage. The supplied manufacturer search result states that the MP7748S provides high fidelity comparable to Class A/B amplification at high Class D efficiency. Variable-frequency operation can also reduce low-frequency interference concerns associated with a fixed switching frequency, although frequency-dependent EMI evaluation remains essential. Input filtering, output reconstruction, speaker load, thermal conditions, and supply decoupling determine final acoustic and system performance. Typical uses include compact stereo systems, portable or multimedia speakers, home-theater amplification, powered subwoofers, smart displays, and compact consumer-audio products. In single-ended operation, each channel drives a speaker independently; in bridge-tied-load operation, the two outputs work together so the speaker sees the differential voltage without tying either output to ground. Layout is critical because the exposed pad and output traces carry power while the audio input is sensitive to switching and ground noise. Place input filtering and decoupling near their associated pins, keep loudspeaker outputs away from the analog input, and use the manufacturer’s datasheet land pattern and output-filter recommendations. Verify thermal performance, speaker impedance, and protection behavior in the final enclosure. This page combines verified manufacturer and distributor data with application guidance, source traceability, and drop-in-replacement analysis. It explicitly distinguishes confirmed MP7748SGF information from target-ordering and package details that were not supplied, avoiding unsupported electrical or commercial assumptions.

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MP7751GF-Z - 2x20W Stereo Class-D Audio Amplifier | MPS
MP7751GF-Z

MP7751GF-Z - 2x20W Stereo Class-D Audio Amplifier | MPS

The Monolithic Power Systems MP7751GF-Z is a fixed-frequency, stereo, analog-input Class-D audio amplifier delivering 2 x 20 W into 8-ohm speakers at an 18 V supply. It operates from 5 V to 26 V and is packaged in a 28-pin TSSOP with exposed pad. The integrated solution is designed to reduce board size by combining 240 mΩ power MOSFETs, start-up and shutdown pop elimination, short-circuit protection, and advanced EMI performance. A Class-D audio amplifier is a switching power amplifier within the broader audio-amplifier and power-management semiconductor hierarchy. Instead of continuously dissipating a signal through linear output devices, it uses efficient switching stages to drive a speaker load. The MP7751 uses a bridge-tied-load topology, which means each speaker is connected between two switching outputs rather than to ground. This improves output-voltage utilization and can provide substantial audio output from a compact integrated circuit. Key verified features include a 5 V to 26 V supply range, stereo operation, 20 W per channel at 18 V into 8 ohms, and a fixed switching-frequency implementation. The integrated 240 mΩ power MOSFETs reduce external component count, while short-circuit protection improves robustness in speaker-drive applications. The exposed thermal pad supports heat transfer through the PCB, although thermal design must account for the amplifier dissipation and copper area. The MP7751GF-Z is positioned for analog audio systems requiring compact stereo amplification, including powered speakers, consumer audio equipment, small multimedia systems, and portable or compact audio products. Compared with a discrete MOSFET output stage, the integrated amplifier simplifies layout and reduces component count. Compared with a higher-power external amplifier, the MP7751 is appropriate when the required speaker load is near 20 W per channel and the available supply is within its verified operating range. The main design consideration is power-thermal management. Class-D efficiency does not eliminate heat: output-stage loss still depends on supply voltage, load impedance, output power, switching characteristics, and copper thermal resistance. Layout should follow the manufacturer datasheet exactly, preserve the exposed-pad connection, keep switching loops compact, and provide adequate input filtering. Speaker wiring should remain short and separated from sensitive analog input routing to reduce EMI pickup and pop artifacts. This page combines verified manufacturer and distributor information with practical guidance on analog-input filtering, exposed-pad thermal design, speaker protection, and application selection. Pricing and availability must be checked as of 2026-10-22 because distributor inventory and terms can change without notice.

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MP7752GF - 2x15W Stereo Class D Audio Amplifier
MP7752GF

MP7752GF - 2x15W Stereo Class D Audio Amplifier

The Monolithic Power Systems Inc. MP7752GF is a stereo Class D audio amplifier IC with 2 x 15 W output power, an 18 V supply rating, analog input, fixed-frequency operation, and bridge-tied-load speaker drive. It is supplied in a 28-pin TSSOP with exposed pad. The device is designed for compact, integrated Class D audio systems where output-stage inductors and LC filters are not required. An inductorless Class D amplifier is a switching audio amplifier that uses integrated power MOSFETs to deliver high output power efficiently while driving speakers directly in a bridge-tied-load arrangement. The MP7752GF belongs to the amplifier-IC, audio-amplifier, Class D, and power-management semiconductor hierarchy. Its integrated power stage, short-circuit protection, start-up/shutdown pop elimination, and advanced EMI performance support compact consumer audio products. The verified source data identifies the MP7752GF as a 2-channel stereo Class D amplifier rated at 18 V and 2 x 15 W. It integrates 240 milliohm power MOSFETs and uses bridge-tied-load output topology. The fixed-frequency switching architecture removes the need for an external output inductor, reducing board area compared with conventional filter-based Class D solutions. The exposed-pad package also provides a thermal connection from the power stage to the PCB. Typical applications include compact stereo speakers, portable consumer audio products, multimedia systems, USB or docking audio products, and other low-voltage audio equipment requiring efficient amplification. In a typical bridge-tied-load implementation, the two amplifier outputs drive the two speaker terminals, so the speaker load sees differential voltage rather than being connected to ground. The principal design consideration is thermal management. Although the integrated MOSFETs eliminate external output inductors, Class D switching and bridge-tied-load operation still generate heat that must leave through the exposed pad and surrounding copper. PCB thermal vias, adequate copper area, and careful placement of input, power, and output connections are important for reliable operation. This product page combines the verified distributor description, manufacturer datasheet identification, package information, and cross-reference results. Pricing, exact operating conditions, protection thresholds, efficiency curves, and complete pin-level electrical characteristics must be confirmed against the manufacturer datasheet before design release.

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MP7752GF-Z - 2x15W Stereo Class-D Amplifier | MPS
MP7752GF-Z

MP7752GF-Z - 2x15W Stereo Class-D Amplifier | MPS

The Monolithic Power Systems MP7752GF-Z is a two-channel, analog-input, inductorless Class-D stereo audio amplifier rated for 2 x 15 W output into 8-ohm speakers. It operates from a 5 V to 18 V supply and uses bridge-tied-load (BTL) outputs, in a 28-pin TSSOP-EP package. A Class-D audio amplifier converts a comparatively low-power analog input into a high-efficiency PWM power stage that delivers energy directly to the speaker load. The MP7752 integrates 240 mOhm power MOSFETs, eliminating the need for external output inductors and reducing board area. Its fixed-frequency architecture supports filterless operation when the system does not require a reconstructed low-pass signal at the speaker output. Verified features include a 2 x 15 W BTL output configuration, two pairs of differential inputs, short-circuit protection, startup and shutdown pop suppression, automatic mute or no-noise switching, automatic power saving, and 90% efficiency. The listed THD is 0.5%, with a -60 dB figure and 100 dB also appearing in the verified distributor listing, although the exact test conditions for those entries require confirmation in the manufacturer datasheet. The MP7752GF-Z is suitable for compact stereo audio products, multimedia speakers, USB or Bluetooth audio accessories, soundbars, and powered speaker systems. Its differential input architecture helps reject common-mode noise when the source is balanced or when a suitably designed input network is used. The exposed-pad package supports thermal performance, but actual output power and distortion depend strongly on supply voltage, speaker impedance, PCB copper, thermal design, and load tolerance. The key design consideration is the exposed thermal pad. Place the pad over a continuous ground or thermal-copper area with multiple short vias and follow the manufacturer land pattern. Decouple the supply locally, keep speaker outputs away from sensitive input routing, and validate EMI performance because Class-D PWM outputs contain high-frequency energy. Confirm all absolute maximum ratings, pin functions, thermal resistance values, and application limits against the official datasheet before release. This page combines verified distributor specifications, the official MPS product-document result, package and sourcing information, and engineering-focused usage guidance. Pricing and availability remain distributor-dependent, so the tiers shown here should be treated as reference data only, as of 2026-10-22, unless separately confirmed.

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MP7770GF-Z - 90W Class-D Audio Amplifier | MPS
MP7770GF-Z

MP7770GF-Z - 90W Class-D Audio Amplifier | MPS

The Monolithic Power Systems MP7770GF-Z is an analog Class-D audio amplifier IC capable of delivering 2 x 45 W stereo single-ended output or 90 W mono bridge-tied-load output from a 36 V VDD supply. It is packaged in a 28-TSSOP-EP package. What is a Class-D audio amplifier? A Class-D amplifier is an audio power amplifier whose switching output stage delivers energy to a speaker more efficiently than a traditional linear Class-A/B design. The MP7770 uses MPS proprietary variable-frequency topology to combine high output power with compact integration. It supports either two single-ended speaker channels or one bridge-tied-load speaker, making it adaptable to stereo and compact high-power audio systems. The MP7770 integrates 100 mOhm power MOSFETs, startup and shutdown pop-elimination circuitry, and short-circuit protection. According to the manufacturer product page, its fully integrated amplifier architecture reduces solution size. The MP7770GF is also available on the EV7770-F-00A evaluation board for single-ended configurations, providing a practical platform for evaluating 45 W per channel into 4 Ohm speakers at up to 36 V VDD. The manufacturer datasheet identifies the MP7770GF family as an analog Class-D audio amplifier with variable-frequency operation. The output topology determines the power configuration: two channels can each deliver 45 W into 4 Ohm speakers in single-ended mode, while a bridged configuration can deliver 90 W into 8 Ohm. The bridge-tied-load topology is useful when the system requires one higher-power speaker output rather than two independent channels. Typical applications include compact stereo audio systems, multimedia speakers, powered subwoofers, consumer audio equipment, and industrial or communications speaker systems. When designing the board, provide a clean supply path, adequate thermal copper around the exposed pad, and speaker protection appropriate to the selected output topology. The most important design tradeoff is power delivery versus thermal and supply capability. At 36 V VDD, the stated output ratings are 45 W per channel or 90 W in bridged mode, but actual continuous output depends on speaker impedance, supply voltage, thermal conditions, and the amplifier's operating limits. This page consolidates the verified product data, comparison fields, alternatives, and design guidance relevant to MP7770GF-Z. According to the verified data, MP7770GF-Z is offered as a 28-TSSOP-EP Class-D audio amplifier by Monolithic Power Systems and is associated with the MP7770GF family.

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MP7782DF-LF-Z - 50W Mono Class-D Amplifier | MPS
MP7782DF-LF-Z

MP7782DF-LF-Z - 50W Mono Class-D Amplifier | MPS

Monolithic Power Systems MP7782DF-LF-Z is a 50 W mono bridged Class-D audio amplifier IC supplied in a 20-pin TSSOP package with an exposed pad. It operates from a 9.5 V to 24 V supply, supports operation from -40 °C to +85 °C, and is specified as a lead-free, RoHS-compliant 20-TSSOP device. The verified distributor data identifies the component as a one-channel Class-D amplifier intended for compact, efficient audio systems. A Class-D audio amplifier is a switching power amplifier that uses transistor output stages to deliver audio energy with relatively low internal power loss. The MP7782DF-LF-Z belongs to the amplifier IC hierarchy: Class-D amplifier, audio amplifier IC, analog signal-processing IC, and power-management semiconductor. Its bridged mono configuration is suited to powered speakers, portable audio equipment, soundbars, compact consumer systems, and industrial audio products where one speaker is driven from two amplifier outputs. The headline electrical ratings are a 50 W maximum output power, a 9.5 V to 24 V supply-voltage range, and a monobridge Class-D output topology. Its 20-TSSOP exposed-pad package supports compact PCB layouts while providing a designated thermal-coupling area. The -40 °C to +85 °C operating-temperature range supports both consumer and extended-temperature industrial environments when the complete system is designed for the applicable environmental limits. The MP7782DF family is described by Monolithic Power Systems as a second-generation, fully integrated audio-amplifier solution intended to reduce solution size. In a bridged output arrangement, the two power-output nodes drive a speaker differentially, increasing usable output voltage into the load compared with a conventional single-ended output. The exposed thermal pad should be connected to the PCB ground plane according to the manufacturer layout guidance. Typical uses include compact speaker enclosures, portable or battery-powered audio products, multimedia speaker systems, USB or desktop audio amplification, soundbar subwoofer sections, and industrial notification or intercom equipment. System designers must account for speaker impedance, supply capability, output filtering, thermal performance, and EMI generated by the Class-D output stage. The main design consideration is power delivery and heat management. A 50 W device rating does not guarantee 50 W continuous output at every supply voltage, speaker impedance, or ambient temperature. Validate the operating point against the manufacturer data, use an adequately sized supply, and provide generous exposed-pad copper and thermal vias. High-current speaker traces also require short, wide routing to reduce voltage loss and EMI radiation. This product data combines verified distributor specifications, a 50 W application-oriented overview, sourcing guidance, and design-focused comparisons. It distinguishes documented ratings from unavailable detailed pin, electrical-limit, and alternative-part data so engineers can distinguish verified facts from items that still require confirmation in the manufacturer datasheet.

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MP8046DF-LF-Z - 5A 28V Class-D Driver | MPS
MP8046DF-LF-Z

MP8046DF-LF-Z - 5A 28V Class-D Driver | MPS

Monolithic Power Systems MP8046DF-LF-Z is a 5 A, 28 V configurable Class-D audio power driver in a 20-pin TSSOPF exposed-pad package. The device supports two independent single-ended channels or a complementary bridge-tied-load configuration, giving designers one PWM input power driver for stereo, multichannel, and external-MOSFET audio power stages. A Class-D audio power driver is a semiconductor that accepts PWM-modulated audio signals and controls external power MOSFETs. The MP8046 belongs to the hierarchy PWM input power driver, audio power IC, amplifier IC, and power-management semiconductor. Its dual-channel architecture allows independent operation, while the bridge-tied-load option can increase output voltage to the load and eliminate the need for an output coupling capacitor. The manufacturer identifies a 28 V maximum supply capability and a 5 A device rating. The operating range begins at 7.5 V, and the supplied distributor listing reports a 2.4 mA current figure. Protection and control features include low-current shutdown, standby mode, input undervoltage protection, current limit, thermal shutdown, and a fault-flag output. Both channels use standard logic signals, simplifying control from a digital audio processor or Class-D PWM controller. The MP8046 is available in a 20-pin TSSOP with exposed pad, identified by distributors as TSSOPF-20-EP. The exposed pad supports heat transfer from the driver to the PCB, which is important because MOSFET-gate drive and power-stage losses can create substantial board-level heating. The manufacturer also publishes the EV8046DF-00A evaluation board for evaluating this high-current, dual-channel half-bridge device with PWM-modulated inputs. Typical uses include stereo single-ended audio outputs, bridge-tied-load speaker drives, powered speaker systems, soundbars, and external-MOSFET Class-D stages. Configuration flexibility is particularly useful when one amplifier platform must support several output topologies or channel counts. The PWM inputs allow the upstream modulator to retain control over modulation, dead time, and signal processing. When designing the power stage, verify that external MOSFETs, gate resistors, input filtering, and the PCB thermal design satisfy the driver requirements. The exposed pad must be connected to the appropriate ground plane and thermal copper rather than treated as an unused package lead. Account for shutdown behavior, undervoltage lockout, current limiting, and fault-flag handling in the system control sequence. This product record combines the verified manufacturer capabilities, distributor specifications, ordering references, and design-oriented application context. It also clearly identifies where verified pricing, pin-level assignments, and true pin-compatible replacements are unavailable rather than presenting unsupported engineering assumptions.

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MP8049SDU-LF-P - 30W Quad Class-D Driver | MPS
MP8049SDU-LF-P

MP8049SDU-LF-P - 30W Quad Class-D Driver | MPS

Monolithic Power Systems MP8049SDU-LF-P is a Class-D audio power-stage IC that provides four 30 W output channels at an 8 ohm load in a 40-QFN package measuring 5 mm by 5 mm. The device supports a 26 V maximum operating voltage and is specified for output current up to 5.5 A. It can be configured as a dual-channel full-bridge driver or a quad-channel half-bridge driver, allowing the same device to support different Class-D output topologies. A Class-D audio amplifier is a switching power amplifier in which the output transistors operate between the active and inactive states. A full-bridge arrangement provides differential drive and can produce an output without a DC-blocking output capacitor, while a half-bridge arrangement can provide a single-ended output stage. The MP8049SDU-LF-P integrates this power-driver flexibility into one surface-mount IC intended to serve as the output stage of a Class-D audio amplifier. The four-channel configuration delivers up to 30 W per channel into 8 ohms, making the device suitable for compact multi-channel audio systems. Its configurable architecture allows each full bridge to operate independently as a stereo single-ended amplifier or to operate complementarily in bridge-tied-load configuration. Short-circuit and thermal protection are listed among the device features, providing practical safeguards for demanding speaker-load and space-constrained designs. The MP8049S family combines a 26 V operating limit with a 5.5 A output-current capability. These specifications place the device in the class of integrated Class-D output stages intended for consumer audio, multimedia, and powered-speaker applications. The available source information also identifies low-current shutdown and standby modes, while the exact timing and detailed electrical limits for those modes are available in the manufacturer documentation. Typical uses include quad-channel home-audio amplification, compact stereo systems, multimedia speaker products, and portable or automotive audio subsystems where multiple amplified channels are required. The 40-QFN surface-mount package supports dense PCB layouts, but careful thermal management is essential because sustained multi-channel output can produce significant heat. Designers should also account for the low-voltage power-supply limitations of class-D audio systems. The principal design consideration is to preserve the power stage's thermal margin and switching performance. Output filtering, speaker-return routing, and high-current supply connections should be implemented as short, wide paths, while the exposed-pad thermal requirements of the 40-QFN package must be followed. The -LF-P ordering suffix identifies the supplied reel configuration, and engineers should confirm package orientation, exposed-pad layout, and pin assignments against the manufacturer datasheet before release to production. This page consolidates the verified distributor and manufacturer information for the MP8049SDU-LF-P, identifies the available same-family ordering alternatives, and adds application guidance for Class-D amplifier implementation. Because detailed pin assignments, exact switching limits, thermal data, and numeric price tiers were not included in the retrieved source material, those items are marked for verification rather than inferred.

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MP8049SDU-LF-Z - 24V 5.5A Quad Class-D | MPS
MP8049SDU-LF-Z

MP8049SDU-LF-Z - 24V 5.5A Quad Class-D | MPS

Monolithic Power Systems MP8049SDU-LF-Z is a 24 V, 5.5 A quad-channel Class-D audio power driver configured as four half-bridge outputs, or two configurable full-bridge outputs, in a 40-pin QFN 5 mm × 5 mm package. The device provides selectable forced-PWM and asynchronous operating modes, programmable output-level control, dynamic output-voltage control, integrated power MOSFET switches, and an internal Schottky diode. In forced-PWM mode, the output current reaches 1.5 A, while asynchronous mode supports 50 mA. The MP8049S family can operate each full bridge independently as stereo single-ended audio amplifiers or drive the bridges complementarily in bridged-tie-load configurations. Its integration reduces external discrete switching hardware, while selectable modes let designers trade switching behavior and output characteristics according to the audio architecture. A Class-D audio power driver is the output-stage category used to convert PWM commands into high-current speaker drive. The broader hierarchy is Class-D power driver → audio power amplifier → amplifier integrated circuit → power-management and signal-chain semiconductor. The MP8049S is primarily an output-stage driver rather than a complete audio signal-chain amplifier, so its usefulness depends on upstream control, modulation, fault handling, and system-level protection. It is suitable where a compact quad-channel architecture is valuable, including multiway speakers, soundbars, compact consumer audio, industrial audio modules, and powered speaker systems. Key features include user-selectable forced-PWM and asynchronous operation, separate programmable output levels for each operating mode, dynamic output-voltage control, integrated power MOSFETs, and an integrated Schottky diode. Forced PWM provides a predictable switching mode at up to 1.5 A output current, while asynchronous operation is specified at 50 mA. Dynamic output-voltage control can reduce dissipation when the commanded output level is low, although the exact control method and external components must be implemented according to the manufacturer datasheet. The reported 24 V and 5.5 A ratings describe the family's headline operating capability and should not be interpreted as simultaneously available output power at every load or mode. The MP8049S architecture provides two configurable full bridges or four half bridges, allowing the same device family to support multiple speaker topologies. Forced-PWM mode helps control output behavior where consistent switching timing is important, whereas asynchronous operation can reduce switching activity at lower signal levels. The integrated MOSFETs eliminate separate output switching transistors in supported configurations, while the Schottky diode supports the associated rectification function. Exact pin assignments, protection limits, thermal data, operating-temperature limits, and recommended compensation or filtering networks must be confirmed in the MP8049S datasheet. Typical applications include compact stereo Class-D amplifiers, quad-channel distributed speaker systems, soundbar output stages, powered speakers, multimedia enclosures, and industrial audio modules. The 40-QFN 5 mm × 5 mm package supports space-constrained products but requires careful PCB layout for thermal dissipation, high-current output routing, ground integrity, and clean input/PWM routing. Design engineers should account for the difference between the 5.5 A device rating, the 1.5 A forced-PWM output-current specification, and the 50 mA asynchronous-mode specification when sizing speakers and protection networks. A primary design consideration is to keep high-current speaker outputs, power ground, and switching nodes compact and isolated from sensitive audio inputs. Place input and PWM-control traces away from output-current paths, use the datasheet-recommended power and ground-plane arrangement, and provide thermal copper around exposed-pad connections. Avoid treating the asynchronous-mode 50 mA rating as interchangeable with the forced-PWM rating; validate mode-specific current, thermal, and acoustic behavior in the final enclosure. This page consolidates the verified manufacturer and distributor information for the MP8049SDU-LF-Z, distinguishes device-family ratings from mode-specific limits, and adds engineering guidance on topology selection, thermal layout, current routing, and verified replacement constraints. No unverified cross-brand drop-in substitute is presented as a direct replacement.

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MP8101DJ-LF-P - 1.8V 400kHz Ultra-Low-Power Op Amp | MPS
MP8101DJ-LF-P

MP8101DJ-LF-P - 1.8V 400kHz Ultra-Low-Power Op Amp | MPS

The Monolithic Power Systems MP8101DJ-LF-P is a single-circuit, rail-to-rail-output operational amplifier with 400 kHz gain-bandwidth product, 11 µA supply current, and operation from a single 1.8 V supply in a TSOT-23-5 package. It is designed for low-voltage, low-power signal conditioning where a small package, low quiescent current, and rail-to-rail output are more important than high bandwidth or precision over a wide temperature range. The MP8101 family is positioned between general-purpose amplifiers and larger, higher-current analog signal-chain devices. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its differential inputs while using feedback to control gain, bandwidth, and signal integrity. The MP8101 is a rail-to-rail-output amplifier, meaning its output can approach the supply rails more closely than a conventional output stage. It belongs to the operational-amplifier, analog-amplifier, and power-management-adjacent low-power IC categories, making it useful in portable sensors, battery-powered instruments, and low-voltage embedded systems. The main verified specifications are 400 kHz bandwidth, 11 µA supply current, and operation down to 1.8 V. The manufacturer describes the device as an ultra-low-power operational amplifier in a TSOT-23 package. The TSOT-23-5 outline supports compact surface-mount layouts, while the five-pin arrangement is intended for straightforward single-amplifier implementations. Rail-to-rail output supports low-voltage systems in which the signal can occupy much of the available supply range. The MP8101 can be used for sensor amplification, buffer stages, low-voltage ADC drivers, current-shunt monitoring, and portable measurement systems. Its 11 µA supply current is useful in battery-operated equipment where the amplifier must remain present without dominating the standby power budget. The 400 kHz bandwidth permits moderate-speed signal processing, although the datasheet should be consulted for gain-bandwidth, slew-rate, input-common-mode, output-swing, and noise details before finalizing a design. Designers should verify the exact input and output voltage limits, input bias current, output-current capability, noise density, slew rate, and stability requirements against the manufacturer datasheet. Decoupling capacitors should be placed close to the supply pins, and the unused input should be configured according to the datasheet recommendations. This page consolidates the verified manufacturer and distributor information, technical use cases, sourcing guidance, and drop-in replacement information for faster engineering review.

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MP8101DJ-LF-Z - 400kHz Low-Power RRO Op Amp | MPS
MP8101DJ-LF-Z

MP8101DJ-LF-Z - 400kHz Low-Power RRO Op Amp | MPS

Monolithic Power Systems MP8101DJ-LF-Z is a single-circuit, rail-to-rail-output operational amplifier with 400 kHz gain-bandwidth product, 11 µA supply current, and operation from a single supply as low as 1.8 V. The device is supplied in a compact TSOT-23-5 surface-mount package and is intended for general-purpose low-voltage signal amplification. An operational amplifier is an analog signal-conditioning IC that amplifies the difference between its inverting and non-inverting inputs. Within the broader semiconductor hierarchy, the MP8101 belongs to the operational-amplifier family of amplifier ICs and supports low-voltage, low-power system designs. Its rail-to-rail output allows the output voltage to approach the supply rails under suitable load and output conditions, while the 400 kHz bandwidth makes it suitable for moderate-speed signal paths rather than high-frequency precision applications. The principal benefits of the MP8101DJ-LF-Z are its 11 µA supply-current consumption, 400 kHz gain-bandwidth product, single-supply operation down to 1.8 V, and 82 dB common-mode rejection ratio. The 0.2 V/µs slew rate supports moderate signal transitions, and the TSOT-23-5 package minimizes board area. These characteristics suit battery-powered sensing, portable instrumentation, low-voltage control, and general analog conditioning where energy efficiency and compactness matter. Technically, the MP8101 is a general-purpose amplifier rather than a dedicated micropower part selected solely for the lowest possible quiescent current. Its 400 kHz bandwidth provides useful closed-loop response for low-frequency and moderate-bandwidth signals. Common-mode rejection of 82 dB helps reduce differential outputs caused by unwanted common-mode voltage, but input offset, input-bias current, output-current capability, noise, stability, and maximum supply voltage must be checked in the complete application before treating it as a universal substitute. Typical uses include buffering sensor outputs, amplifying low-level analog signals, conditioning controls, driving moderate loads, and providing gain in compact battery-operated equipment. The rail-to-rail output is particularly useful when the signal must use most of the available supply range. Designers should nevertheless verify the output swing, capacitive-load behavior, input common-mode range, and shutdown behavior against the manufacturer datasheet before finalizing a design. The primary design consideration is the tradeoff between bandwidth, supply voltage, and current consumption. The 11 µA operating current supports low-power operation, but 400 kHz bandwidth does not make the amplifier appropriate for high-speed communication links or video. Input and output stability should be evaluated with the actual source impedance, load, cable capacitance, and supply-decoupling network rather than under ideal laboratory conditions. This product page consolidates the verified manufacturer and distributor information, identifies sourcing and technical-document links, and separates confirmed MP8101DJ-LF-Z characteristics from unavailable pricing and detailed pin information. It also provides application guidance and an honest drop-in comparison instead of presenting unsupported substitutions as verified equivalents.

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