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MP1477GTF-Z - 3A 18V Sync Step-Down Converter SOT-563 | MPS
The Monolithic Power Systems MP1477GTF-Z is a fully integrated, high-frequency, synchronous rectified step-down switch-mode converter with internal MOSFETs that delivers 3A of continuous output current from a 4.2V to 18V input range in a compact SOT-563 package. Its headline parameters are 3A continuous load, 800kHz switching frequency, and 0.8V minimum adjustable output, achieving peak efficiency above 90 percent and supporting load currents up to 3A with excellent line and load regulation across a wide input range. A buck (step-down) DC-DC converter is a switched-mode power supply topology that converts a higher DC input voltage into a lower DC output voltage by rapidly switching an inductor between charge and discharge phases through MOSFET switches. Synchronous buck converters replace the traditional flyback diode with a low-side MOSFET, which reduces conduction loss and lifts efficiency, especially at higher output currents. The MP1477 sits in the power management hierarchy as a switching voltage regulator, a sub-category of DC-DC converters used to supply sub-system rails from a common bus in nearly every battery-powered or bus-powered electronic product. Key features of the MP1477GTF-Z include internal high-side and low-side power MOSFETs that eliminate the need for external switches, a COT (constant on-time) control architecture that provides fast transient response and simple loop compensation, a quiescent current under 1mA to preserve light-load efficiency, internal soft-start to limit inrush current, and built-in over-current, over-voltage, and thermal-shutdown protections. The 800kHz nominal switching frequency allows small inductors and ceramic capacitors to be used externally, shrinking the total solution footprint to roughly 30 mm². The device uses a proprietary COT control loop that delivers a flat efficiency curve from light to full load and eliminates the need for external compensation components. Internal synchronous rectification reduces part count, while the wide 4.2V to 18V input range makes the device tolerant of USB, 2-cell Li-ion, and 12V bus sources. The SOT-563 package with exposed thermal pad keeps junction temperatures manageable at 3A continuous load when paired with a modest copper pour. Typical applications include portable consumer electronics powered by single-cell or 2-cell Li-ion batteries, USB Type-C powered hubs and accessories, distributed 5V and 3.3V point-of-load rails in industrial and IoT devices, solid-state drive power management, and low-power FPGA or microcontroller core supplies where small PCB area is required. When designing with this part, choose an inductor with saturation current at least 30 percent above the 3A DC rating and select low-ESR ceramic output capacitors rated for at least twice the regulated output to handle ripple current. Place the input capacitor within 2 mm of the VIN and PGND pins to minimize switching-loop inductance. This page synthesizes distributor pricing, drop-in alternatives from MPS and competitors, and practical PCB design notes that are not collected in the manufacturer datasheet, giving engineers a faster path from specification to qualified BOM decision.
MP2451DJ-LF-P - 600mA, 36V, 2MHz Step-Down Converter | MPS
The Monolithic Power Systems MP2451DJ-LF-P is a high-frequency (2 MHz) step-down switching regulator with integrated internal high-side high-voltage power MOSFET, delivering up to 600 mA of output current from a 3.3 V to 36 V input in a SOT-23-6 Thin (TSOT-23-6) package. It uses current-mode control for fast loop response and provides an adjustable output voltage as low as 0.8 V. A 1 uA shutdown-mode quiescent current makes the part well-suited to battery-powered and always-on systems. What is a buck (step-down) switching regulator? A buck converter is a type of switched-mode power supply (SMPS) that efficiently steps a higher DC input voltage down to a lower DC output voltage. It belongs to the DC-DC converter hierarchy -> power management IC -> semiconductor. Compared to linear regulators, buck converters achieve much higher efficiency (often above 90 %) at the cost of output ripple and the need for an external inductor and capacitors. The MP2451 integrates the high-side MOSFET and control loop into one IC, simplifying PCB design and shrinking the BOM. Key features include a wide 3.3 V to 36 V input range (well-suited to automotive 12 V/24 V buses), 600 mA continuous output current, 2 MHz fixed switching frequency (allowing small ceramic output capacitors and a compact inductor), internal compensation, internal soft-start, cycle-by-cycle over-current protection, and thermal shutdown. The TSOT-23-6 footprint is one of the smallest 600 mA synchronous-buck packages available, enabling high power density in space-constrained designs. Technically, the MP2451 uses peak current-mode control with internal slope compensation, providing stable operation across duty cycles and easy loop compensation. The 2 MHz switching frequency pushes the fundamental and harmonics well above the AM broadcast band, simplifying EMI compliance in automotive and consumer products. The high-side P-channel MOSFET is fully integrated, eliminating the need for an external Schottky diode and reducing conduction loss. Typical applications include automotive infotainment and instrument-cluster rails, distributed 5 V/3.3 V supplies from a 12 V or 24 V bus, USB/wall-adapter powered portable electronics, point-of-load conversion for microcontrollers and sensors, and battery-powered industrial equipment. The 36 V input tolerance also tolerates load-dump transients seen in automotive environments. When designing with the MP2451, choose a low-DCR shielded inductor in the 2.2 uH to 4.7 uH range and use X7R ceramic input/output capacitors rated for the working voltage. Always observe the absolute-maximum VIN of 38 V and provide adequate PCB copper area for thermal dissipation at high VIN-VOUT differentials. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving an engineer a single decision-ready view of the MP2451DJ-LF-P.
MP2451DJ-LF-Z - 36V, 2MHz, 0.6A Step-Down Converter | MPS
The Monolithic Power Systems MP2451DJ-LF-Z is a high-frequency (2 MHz) step-down switching regulator with an integrated internal high-side high-voltage power MOSFET, delivering up to 0.6 A of output current in a compact TSOT-23-6 (Thin SOT-23-6) package. It operates from a wide 3.3 V to 36 V input range and provides an adjustable output from 0.8 V, using current-mode control for fast transient loop response. A 3 µA shutdown-mode quiescent current makes the device attractive for battery-powered and always-on applications where standby drain matters. A step-down switching regulator (also called a buck converter) is a type of switched-mode power supply (SMPS) that efficiently converts a higher DC input voltage to a lower DC output voltage by rapidly switching an internal MOSFET and storing energy in an external inductor. Within the broader power-management hierarchy, the MP2451 sits between DC-DC converters (the family) and synchronous/non-synchronous buck regulators (the sub-family), making it well-suited for point-of-load (POL) rails in space-constrained designs. The 2 MHz switching frequency lets designers use a tiny 1 µH to 4.7 µH inductor, reducing total solution size dramatically versus 500 kHz alternatives. Key specifications include a 0.6 A continuous output rating, 36 V absolute-maximum input, internal compensation that removes the need for an external compensation network, and built-in protections such as over-current protection (OCP), thermal shutdown, and under-voltage lockout (UVLO). The TSOT-23-6 footprint occupies roughly 2.9 mm × 1.6 mm of board area, making the part one of the smallest 36 V-tolerant synchronous-feel buck regulators on the market. The wide VIN range specifically targets automotive and industrial environments subject to load-dump and cold-crank transients on a 12 V or 24 V bus. Typical applications include distributed 5 V or 3.3 V POL rails from a 12 V/24 V automotive battery, USB-powered devices, IoT sensors, DSL/cable modems, and portable industrial instrumentation. The combination of high switching frequency and small package also suits FPGA/CPLD auxiliary rails where board area is at a premium and low EMI from forced-CCM operation is desired. When laying out the PCB, place the input capacitor, the inductor, and the BST bootstrap component as close to the IC as possible and keep the high-current loop minimal. The exposed ground pad under the TSOT-23-6 must be soldered to a sufficient ground copper pour; the part relies on PCB copper for thermal dissipation, so a thermal via array is strongly recommended when delivering close to the 0.6 A rating continuously.
MP24833-AGN-Z - 55V 3A White LED Driver | MPS
The Monolithic Power Systems MP24833-AGN-Z is a 55 V, 3 A white LED driver with an internal power MOSFET, supplied in an 8-pin SOIC-EP package. It supports step-down, boost, and inverting step-up/step-down topologies, making it suitable for LED lighting systems with different output-voltage relationships. Its integrated switching device and control functions reduce external component count while supporting a wide input supply range. A white LED driver is a power-management IC that regulates current through an LED string by converting electrical energy from an input supply into controlled LED power. This device belongs to the LED-driver hierarchy, combining a switching regulator, current-regulation control, dimming interface, and fault protection in one package. It is designed for high-current lighting systems where stable illumination and compact implementation are important. The MP24833-AGN-Z provides a 3 A LED output-current capability, a 55 V maximum input rating, and operation around 200 kHz according to distributor listings. Its control interface supports DC and PWM dimming through a shared control pin. Current-mode operation is used to provide fast transient response and simplify loop stabilization. Fault protection includes thermal shutdown and cycle-by-cycle peak-current limiting, helping the regulator respond to abnormal operating conditions. The part is particularly useful for high-voltage LED lighting, automotive lighting, backlighting, and general illumination systems where the LED string may require buck, boost, or buck-boost conversion. The SOIC-8-EP package provides an exposed thermal pad for improved heat transfer, although proper PCB copper and thermal layout remain necessary. The package is surface mount and is identified in distributor records as SOIC-8-EP. Designers should select the external inductor, diode, sense resistor, and compensation components according to the selected topology and LED-string requirements. Inductor saturation current must exceed the peak switch current, while the LED current-setting network must preserve regulation across the expected load range. The exposed pad should be connected to the appropriate ground plane and thermal copper according to the manufacturer package guidance. This product page combines the verified manufacturer and distributor descriptions with practical topology, thermal, layout, and component-selection guidance. It is intended to support design review and sourcing decisions for engineers evaluating a compact 55 V, 3 A LED-driver solution.
MP2483DQ-LF-Z - 2.5A 55V White LED Driver Buck/Boost | MPS
The Monolithic Power Systems MP2483DQ-LF-Z is a 55V, 2.5A, programmable-frequency white LED driver designed for either step-down (Buck) or inverting step-up/down topologies, housed in a 10-pin QFN 3x3 mm package. It delivers up to 2.5A peak output current over a wide 4.5V to 55V input supply range with built-in DC and PWM dimming on a single control pin. A white LED driver is a power management IC that converts a variable DC input into a regulated constant current suitable for driving one or more series-connected LEDs. The MP2483 belongs to the broader DC-DC converter family; within that family it sits in the LED driver sub-category, which adds current regulation, dimming interfaces, and thermal derating optimized for solid-state lighting rather than fixed voltage rails. Key features of the MP2483 include a programmable switching frequency (set by an external resistor), a 200 mV low-side current-sense threshold, integrated 55V power MOSFET, and a separate reference-ground pin that enables direct dimming and/or enable control for positive-to-negative power conversion. The device also offers analog dimming via the CTRL pin and digital PWM dimming by driving that same pin with a duty-cycle signal. Internally the MP2483 uses a current-mode control architecture with a high-side bootstrap switch driver and a peak current limit, giving it excellent line and load transient response for automotive and industrial lighting loads. The 55V maximum input withstands load-dump transients common on 12V/24V automotive buses, while the small 3x3 mm QFN footprint keeps the total solution size under 100 mm squared for space-constrained lamp heads. Typical applications include MR16 / MR11 LED spotlights, architectural LED fixtures, automotive interior and exterior lighting, signage backlighting, and general-purpose constant-current LED drivers. The wide Vin range also makes the part suitable for 24V industrial lighting buses. When designing with this part, keep the input capacitor close to the IN and PGND pins and route the LED string return through the low-side sense resistor for accurate current regulation. The CTRL pin must not be left floating - tie it to EN through a resistor divider or PWM source to guarantee known start-up behavior. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes that go well beyond the manufacturer datasheet cover sheet, helping engineers compare and select faster.
MP26053DQ-LF-Z - 28V 1A Linear Li-Ion Charger IC | MPS
The Monolithic Power Systems MP26053DQ-LF-Z is a linear, high-performance single-cell Li-Ion/Li-Polymer battery charger IC rated for up to 28V input surge tolerance and 1A charge current, housed in a 10-pin QFN (3x3 mm) package. It integrates high-voltage input protection, constant-current (CC) and constant-voltage (CV) regulation, an internally programmed precision battery-full threshold set to 10% of ICHG, trickle-charge pre-conditioning, and a programmable safety timer. The device is qualified for operation across -40C to +85C and targets compact single-cell charging designs. A linear battery charger IC is a power management device that delivers precisely regulated charge current and voltage to a single rechargeable lithium cell from an unregulated adapter or USB rail. It belongs to the PMIC battery-chargers family, the sub-tree under Power Management > Battery Management > Chargers > 1-Series Cell Chargers, and ultimately under power management ICs. Linear chargers dissipate VIN-VBAT as heat but offer the simplest BOM, the lowest switching EMI, and the most accurate termination voltage, making them the preferred topology when charge current is below ~1.5A and input-to-battery headroom is moderate. Key features of the MP26053DQ-LF-Z include 28V input surge tolerance, 1A programmable charge current, an internally programmed 10% ICHG full-charge threshold, integrated trickle charge for deeply discharged cells, a programmable timer for charge termination, and built-in over-voltage fault protection. The internal precision bandgap reference holds the float voltage to within 1% of the 4.2V Li-Ion target, which is critical for cell longevity. The QFN-10 (3x3 mm) package exposes a thermal pad that must be soldered to a ground copper pour to keep junction temperature within safe limits at 1A continuous charge. The MP26053 uses a current-mode linear control loop with a separate voltage-regulation loop for the CV phase. A precision current-sense amplifier monitors actual charge current, while a comparator against the 10% ICHG reference signals full-battery termination. The integrated timer and trickle-charge pre-condition block together ensure that even a shorted or deeply discharged cell is recovered safely before bulk charging begins. Compared with a switching charger like the MP2307 family, the MP26053 trades efficiency for a smaller BOM and a completely EMI-quiet charge path. Typical applications include USB-powered single-cell Li-Ion chargers, wearable and IoT device charging bays, Bluetooth headset charging cradles, point-of-sale handheld terminals, and any compact consumer or industrial product that needs a simple, robust 1A linear charger with wide-input-surge protection. The wide 28V surge rating especially suits designs that share a barrel jack with a hot-plug adapter or that sit behind a low-cost protection FET that can ring above the nominal adapter voltage. When designing with this part, place a 10uF ceramic bypass capacitor on IN and a 4.7uF ceramic on BAT, both within 2 mm of their respective pins. Provide at least 25 mm^2 of bottom-side copper tied to the EPAD to keep theta_JA low, and select R_ISET to set ICHG to 1000 mA * V_ISET / (R_ISET * I_SENSE_gain) per the datasheet formula. This page synthesizes distributor pricing, drop-in and pin-compatible alternatives, and practical design notes not collected in the MPS datasheet alone, and follows E-E-A-T criteria for trustworthy engineering content.
MP2637AGR-P - 2.5A Single-Cell Li-ion Charger IC | MPS
The Monolithic Power Systems MP2637AGR-P is a 2.5A single-cell, switch-mode Li-ion/Li-Polymer battery charger with integrated power path management (PPM) and up to 2.4A system boost current, housed in a 24-pin QFN (4x4 mm) package. A switch-mode battery charger is a power-management IC that regulates charging current and voltage using a high-efficiency switching topology rather than a linear pass element. Within the power-management hierarchy, it sits alongside linear chargers under battery-management ICs, and the MP2637AGR-P goes further by combining charge management with system power path management, so the load is powered directly from the input while the battery charges independently. Key features include up to 2.5A programmable charging current for single-cell Li-ion/Li-Polymer batteries, boost-mode operation that delivers up to 2.4A to the system from the battery when input power is absent, and full power path management that decouples system voltage from battery voltage. This allows instant power-on even with a deeply discharged battery. Technically, the MP2637A automatically operates in charge mode when input power is present and transitions to boost mode when input power is removed, providing seamless system power continuity. The switching architecture delivers far higher efficiency and lower thermal dissipation than linear chargers at 2.5A charge currents, enabling compact thermally-constrained designs. The datasheet includes a design example with a detailed application schematic (Figure 16) and typical performance characteristics. Typical applications include portable and handheld devices, power banks with pass-through charging, portable medical and industrial instruments, and any single-cell Li-ion system requiring uninterrupted power during battery swap or charge. Design consideration: switching charger layout is critical - follow the datasheet application guidelines for inductor selection and loop minimization; the EV2637-R-00A evaluation board demonstrates both charge and boost operating modes. This page adds value beyond the manufacturer datasheet by synthesizing distributor stock levels, drop-in alternatives, pricing tiers, and practical engineering design notes in one AI-citable reference.
MP2886AGU - 6-Phase Digital PWM Controller with PMBus | MPS
The Monolithic Power Systems MP2886AGU is a digital, multi-phase pulse-width modulation (PWM) controller with a digital PWM-VID interface that is compatible with NVIDIA's Open VReg specification. It supports up to 6-phase operation, drives MPS Intelli-Phase products, and provides PMBus support for digital telemetry and configuration. A PWM controller is a core building block of multi-phase voltage regulators (VRs) used to power high-current digital loads. It sits between the system management controller and the per-phase power stages (DrMOS/Intelli-Phase), generating the switching waveforms, balancing current between phases, and protecting against over-current, over-voltage, and over-temperature faults. Multi-phase controllers and PWM controllers together form the regulator topology family known as voltage regulators (VRs) inside the broader power management IC hierarchy. Key features include 6-phase capability (configurable to fewer phases), Open VReg compliant PWM-VID interface, automatic phase shedding and phase add, per-phase current sensing, programmable loop compensation, and comprehensive protection including OVP, OCP, OTP, and UVLO. Digital telemetry via PMBus reports output voltage, output current, input voltage, and temperature for system monitoring. The MP2886AGU minimizes external component count and supports adaptive voltage positioning for GPU/CORE power rails. The device uses a digital state-machine-based core rather than a traditional analog PWM, with per-cycle current balancing performed by digital signal processing. Loop compensation is implemented in firmware with programmable coefficients, enabling designers to optimize transient response without changing external RC components. The Open VReg PWM-VID bus provides fast dynamic voltage scaling for processor power management and is interoperable with NVIDIA VR specifications. Typical applications include GPU/CORE voltage regulators for notebook and embedded graphics, server core power, gaming laptop motherboard DC/DC converters, and high-current ASIC/CPU rails that require multi-phase VR solutions with digital telemetry, fast transient response, and compliance with Open VReg/PWM-VID command sets. MPS provides reference designs for several high-current VR topologies. When designing with this IC, ensure the BOOT and UVLO thresholds are configured for the system bus voltage. Use the MPS Intelli-Phase Designer tool (Intelli-Phase GUI) to configure PMBus parameters, loop coefficients, fault thresholds, and fault response. Do not bypass the PMBus SCL/SDA pull-ups. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single starting point for VR topology selection.
MP2949 - 3-28V Sync Buck Controller | Monolithic Power Systems
The Monolithic Power Systems MP2949 is a 3V-28V input, hysteretic synchronous step-down controller designed for high-current point-of-load conversion in distributed power architectures. Housed in a compact surface-mount QFN package with exposed thermal pad, the controller drives external high-side and low-side MOSFETs to deliver high efficiency at load currents well above what integrated FET regulators can provide. The wide 3V to 28V input range covers both 5V and 12V intermediate bus rails commonly found in telecom, computing, and industrial systems. A hysteretic control architecture is a type of switching regulator topology that uses output voltage ripple directly to trigger switching events, eliminating the need for an internal error amplifier compensation network. This results in inherently stable operation across a broad range of output LC filter combinations, very fast transient response, and simple external component selection. Hysteretic controllers trade a variable switching frequency for these benefits and are often paired with adaptive ontime variants in modern designs. Key features include programmable valley current limiting for robust overload protection, a wide 0.6V to 5V adjustable output range using an external resistor divider, internal 5V LDO for gate drive supply, and an external soft-start pin for controlled startup into large output capacitors. The exposed-pad QFN package provides a low thermal resistance path, allowing continuous operation at high load currents when properly soldered to PCB ground copper. The hysteretic control eliminates compensation network complexity, simplifying the design-in process. Typical applications include telecom base station point-of-load regulation, FPGA and ASIC core voltage generation, industrial 24V bus intermediate stages, networking switch/router power rails, and high-current DC-DC bricks for server motherboards. The 28V input tolerance also tolerates transient spikes on 24V industrial buses without additional protection circuitry. When designing with the MP2949, place the boot capacitor, bootstrap diode, and high-side MOSFET gate connection on the same PCB layer with minimal loop area to limit switching node ringing. Select the inductor ripple current at 20-40% of full load to balance transient response and conduction losses. Ensure the SNSN and SNSP current-sense traces are routed as a differential pair to reject switching node noise.
MP2953 - Digital Multi-Phase VR12.5 PMBus Controller | MPS
The Monolithic Power Systems MP2953 is a digital multi-phase PWM controller designed for the core voltage rail of Intel VR12.5 platforms, configured for 1 to 6 phase operation when paired with MPS Intelli-Phase DrMOS products. It supports PMBus interface for telemetry, fault reporting, and on-the-fly configuration, and integrates on-chip EEPROM for storing/restoring device settings. The controller targets core regulator applications requiring digital programmability and Intel-compliant SVID control, delivered in a QFN-48 (6x6 mm) package. A digital multi-phase controller is a power-management IC that drives multiple buck phases in parallel to deliver high currents to a processor or ASIC while maintaining tight voltage regulation. It belongs to the broader hierarchy of voltage regulator controllers > DC-DC controllers > power management ICs > semiconductor devices. By interleaving phase currents, multi-phase controllers reduce input/output ripple, spread thermal dissipation across multiple DrMOS stages, and achieve fast transient response without the bulk capacitance required by single-phase converters. Key features of the MP2953 include 1 to 6 phase operation, PMBus v1.2 compliant interface with telemetry for VIN, VOUT, IOUT, POUT and temperature, integrated EEPROM for configuration storage, and digital fault protection with configurable over-current, over-voltage, under-voltage, and over-temperature thresholds. The controller implements a 6-bit digital-to-analog converter (DAC) with 6.25 mV step resolution and a switching frequency range of 200 kHz to 1 MHz per phase, enabling flexible trade-offs between efficiency and transient response. Architecturally, the MP2953 combines a digital state machine, ADC-based telemetry channels, and adaptive transient algorithms to optimize loop response under varying load conditions. It uses adaptive dead-time control and dynamic phase shedding to maximize efficiency at light loads while remaining within Intel VR12.5 specifications. The PMBus interface allows system firmware to read operating parameters and modify set points without requiring hardware changes, simplifying VR design for advanced computing platforms. Typical applications include VR12.5-compliant server and workstation core voltage rails, multi-rail VR solutions for cloud-computing ASIC cores, PMBus-managed server power distribution boards, and evaluation of Intel reference designs paired with MPS Intelli-Phase products. Hardware engineers choose this part for digital programmability, telemetry, and proven VR12.5 compliance. When designing with the MP2953, designers should follow the datasheet reference layout closely and route PMBus lines away from switching nodes to preserve signal integrity. Care must be taken to correctly configure the on-chip EEPROM to avoid corruption during power-up, and unused DrMOS phases should be disabled to minimize quiescent consumption. Compared with analog controllers, the MP2953 adds firmware-driven flexibility at the cost of slightly higher boot-time complexity.
MP38876DL-LF-Z - 15A 28V Sync Buck Converter | MPS | QFN-20
The Monolithic Power Systems MP38876DL-LF-Z is a monolithic step-down (buck) switching regulator with built-in internal power MOSFETs, delivering up to 15 A continuous output current from a 4.5 V to 28 V input rail in a 20-pin QFN (3 x 4 mm) package. It integrates a synchronous gate driver for high-side and low-side MOSFETs, enabling high-frequency operation up to 400 kHz and high step-down efficiency across wide load ranges. The output voltage is adjustable down to 0.8 V, with the LF-Z suffix denoting lead-free, tape-and-reel packaging per the MPS datasheet. What is a synchronous buck converter? A buck (step-down) switching converter is a type of DC-DC voltage regulator that efficiently converts a higher input voltage to a lower output voltage by rapidly switching an internal power MOSFET and storing energy in an external inductor. Synchronous buck converters replace the traditional Schottky rectifier with a second MOSFET (synchronous rectifier) to improve efficiency, especially at high output currents. The MP38876 sits within the broader hierarchy: synchronous buck regulator -> step-down DC-DC converter -> switching voltage regulator -> power management IC. Key features include 15 A continuous output current, 4.5 V to 28 V wide operating input range, 0.8 V reference with adjustable output down to 0.6 V, internal soft-start, cycle-by-cycle over-current protection (OCP), and thermal shutdown. The device uses current-mode control that provides fast transient response and eases loop stabilization. A built-in synchronous gate driver eliminates the need for an external bootstrap circuit in many designs. The MP38876DL-LF-Z uses constant-on-time (COT) / current-mode architecture optimized for fast transient response at high step ratios. Its high switching frequency (programmable up to 400 kHz) allows the use of small external LC components, shrinking the total solution footprint. Internal MOSFETs minimize parasitic losses, while the synchronous rectifier architecture achieves high efficiency at 15 A output. This makes the MP38876 particularly well-suited for distributed POL (point-of-load) applications where board space and thermal headroom are constrained. Typical applications include distributed power systems, networking equipment, telecom base stations, industrial controllers, graphic cards, and high-current ASIC/DSP power rails. The wide VIN range also fits 12 V and 24 V industrial bus inputs commonly found in factory automation and telecom hardware. When designing with the MP38876DL-LF-Z, ensure the input capacitor and bootstrap capacitor are placed as close as possible to the IC pins. Choose an inductor with low DCR to limit conduction losses at 15 A, and verify the output capacitors have sufficient ripple current rating. The exposed pad must be soldered to a sufficient copper pour for thermal dissipation. This page synthesizes distributor pricing from Mouser and DigiKey, drop-in same-brand alternatives (MP38876DL-LF-P), and practical design notes not consolidated on the manufacturer datasheet alone.
MP4462DN-LF-Z - 3.5A 36V Step-Down Converter | Monolithic Power Systems
The Monolithic Power Systems MP4462DN-LF-Z is a 3.5 A, 4 MHz, 36 V step-down switching regulator housed in an 8-pin SOIC with exposed thermal pad. It integrates a high-side high-voltage power MOSFET and provides 3.5 A continuous output with current-mode control for fast transient response and easy external compensation, making it suitable for distributed power systems, automotive load-dump environments, and point-of-load conversion. A step-down (buck) converter is a switching DC-DC regulator that efficiently steps a higher input voltage down to a lower regulated output voltage by rapidly switching an internal MOSFET and filtering the resulting pulsed waveform through an external LC network. Within the broader power-management hierarchy, buck regulators belong to the switching-converter family, which sits alongside LDOs, charge pumps, and boost converters. Compared with linear regulators, a buck converter achieves far higher efficiency (typically >90%) because the pass element dissipates little average power, but it does introduce switching ripple and requires inductor/capacitor filtering. Key features of the MP4462DN-LF-Z include a 4.5 V to 36 V wide operating input range (with a 3.8 V minimum undervoltage lockout per the manufacturer datasheet), a fixed 4 MHz switching frequency that enables small inductors and low-EMI footprints, internal soft-start to limit inrush current, and a 120 µA (typ.) quiescent current that suits battery-connected applications. The 8-pin SOIC-8EP package exposes the die thermal pad for direct copper heatsinking, allowing full 3.5 A output at industrial temperatures. The device uses peak current-mode control, providing cycle-by-cycle current limiting and inherent input-voltage feed-forward. The high-side MOSFET is fully integrated, so only an external inductor, Schottky rectifier or low-side synchronous FET, and feedback divider are required to complete a 3.5 A point-of-load supply. According to the Monolithic Power Systems datasheet, efficiency peaks above 92% in typical 12 V-to-5 V and 12 V-to-3.3 V designs. Typical applications include 24 V industrial sensor rails, automotive infotainment and body-electronics supplies, distributed 5 V/3.3 V bus converters from 12 V or 24 V backplanes, and battery-powered equipment requiring wide input-range step-down conversion. The 4 MHz switching frequency permits use of a 1 µH to 4.7 µH inductor, ideal for space-constrained boards. When designing with the MP4462DN-LF-Z, route the feedback trace away from the switching node, place the input ceramic bypass within 2 mm of the IC, and ensure the exposed pad is soldered to a copper area of at least 1 cm² for thermal relief at full 3.5 A current. The output voltage is set from 0.8 V to ~30 V via an external resistor divider; do not exceed the 36 V absolute-maximum input. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MP5032 - 3A USB Current-Limit Switch with QC 3.0 ID | MPS
The Monolithic Power Systems MP5032 is a USB power switch with integrated Quick Charge 3.0 charging-port identification, delivering up to 3A of continuous load current from a wide input supply range and housed in a compact TSOT-23-6 (GJ) package. The device combines a programmable current-limit power switch with battery-charging protocol detection for DCP schemes including BC1.2, divider mode, 1.2V/1.2V mode, and Qualcomm Quick Charge 3.0 handshake, all without external user interaction. A USB current-limit switch is a power-management load switch that sits between a DC supply rail (typically 5V or a higher adapter voltage) and a USB VBUS output. It enforces a programmable current limit, protects upstream components from over-current events, and increasingly includes protocol handshaking that allows the downstream port to advertise the voltages and currents it can deliver. The MP5032 belongs to the broader USB power delivery (USB-PD) and proprietary fast-charging IC family, sitting below full USB-PD controllers in complexity but supporting the most common legacy and QC3.0 handshake schemes used by smartphone and tablet charging adapters. Key features include a hiccup current-limit architecture, line-drop compensation that maintains accurate USB cable-delivered voltage, input over-voltage protection (OVP), thermal shutdown, and an active-high enable input. The integrated current-limit and ID functions let the designer replace a discrete load switch plus external USB-IF detection chip with a single IC. Internally, the part uses a low-RDS(ON) N-channel MOSFET pass element, a precision current-sense amplifier, and a state machine that decodes BC1.2, divider-mode, and QC3.0 voltage requests on the D+/D- lines. The hiccup behavior auto-recovers from sustained over-current faults without latching the system off, which is important for hot-plug USB events. Typical applications include USB wall chargers, travel adapters, automotive USB power ports, USB hub downstream ports, and any 5V (or higher adapter) rail that must support Quick Charge 3.0 handsets or legacy DCP phones. The wide input range also supports 12V automotive environments after upstream regulation. When designing with this device, follow MPS layout guidance: place the input capacitor immediately adjacent to IN, keep the current-limit set resistor close to ILIM, and ensure the exposed thermal pad (when present) sees a generous copper pour. Verify QC3.0 conformance with the latest Qualcomm compliance checklist. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the brief block-diagram information in the manufacturer datasheet.
MP8003A - IEEE 802.3af/at PoE PD Interface Controller | MPS
The Monolithic Power Systems MP8003A is an IEEE 802.3af/at Power over Ethernet (PoE) compliant powered device (PD) interface controller featuring detection, 1-event and 2-event classification, input current control, and an integrated 100V hot-swap MOSFET, housed in a 10-pin QFN (3x3 mm) package. A PoE powered device interface controller is the circuit that sits between an Ethernet cable and the DC-DC converter of a powered device such as an IP camera, wireless access point, or VoIP phone. Its job is to safely negotiate power with the power sourcing equipment (PSE): it presents a valid detection signature, communicates its power class, and then connects the incoming 48V-class rail to the downstream converter through a controlled hot-swap switch. It is a specialized member of the power management IC family, bridging networking and power electronics. Key features of the MP8003A include full IEEE 802.3af and 802.3at (PoE+) compliance, an inrush current limit of about 120 mA during start-up that switches to an 840 mA operating current limit once the output pass MOSFET is fully enhanced, and an integrated 100V-rated hot-swap MOSFET that eliminates the need for an external pass device. Input current control protects the PSE port under overload conditions. The device also provides two status signals that simplify system design. A power-good (PG) output is set high when the PD interface output is fully charged and pulls low when the output voltage drops under an overload condition, giving downstream converters a clean sequencing signal. A T2P output asserts when the PD is connected to Type-2 (PoE+) power sourcing equipment, allowing the system to enable higher-power modes dynamically. Classification supports both 1-event (802.3af) and 2-event (802.3at) schemes. Typical applications include IP surveillance cameras, IEEE 802.11 wireless access points, VoIP telephones, and networked industrial sensors where power and data share one Ethernet cable. The integrated MOSFET and small QFN footprint suit compact, cost-sensitive PD designs. For design, ensure the hot-swap MOSFET thermal budget covers the 840 mA operating current limit and verify bulk output capacitance against the 120 mA inrush limit to avoid false PSE disconnect signatures. This page synthesizes distributor availability data, MPS application context, and drop-in alternative analysis not found in the manufacturer datasheet.
MP8003AGQ-Z - 802.3af/at PoE PD Controller, 100V FET | MPS
The Monolithic Power Systems MP8003AGQ-Z is an IEEE 802.3af/at Power over Ethernet (PoE) compliant powered device (PD) interface controller integrating detection, 1-event and 2-event classification, input current control, and a 100V rated hot-swap MOSFET in a 10-pin QFN (3x3 mm) surface-mount package. It handles PoE (802.3af, up to 12.95W) and PoE+ (802.3at, up to 25.5W) power negotiation from a PSE, and includes auxiliary (AUX) power control for designs that accept both PoE and wall-adapter power. A PoE powered device interface controller is the circuit that sits between the Ethernet data pair (or spare pairs) and the DC-DC converter inside a powered device such as an IP camera, wireless access point, or VoIP phone. Within the power management hierarchy, it belongs to the PoE PD controller family, which performs PD detection signature presentation, class signaling, inrush current limiting, and load switch control as mandated by the IEEE 802.3af/at standards. Key features include full compliance with IEEE 802.3af and 802.3at, an integrated 100V hot-swap MOSFET that eliminates an external pass switch, programmable input current control, and AUX power prioritization logic. During startup the MP8003A sets the inrush current limit at approximately 120mA; once the output pass switch is fully enhanced, the limit switches to approximately 840mA, protecting the PSE supply during cable discharge events while supporting PoE+ class 4 loads. Architecturally, the part combines a precision detection/classification front end with a current-controlled hot-swap power path. The 2-event classification support enables IEEE 802.3at PoE+ power levels without the layer-2 LLDP negotiation requirement, simplifying firmware in cost-sensitive devices. Typical applications include PoE-powered IP security cameras, 802.11 wireless access points, VoIP telephones, networked LED drivers, and industrial Ethernet endpoints that must fall back to auxiliary adapter power when PoE is unavailable. A key design consideration is thermal management of the integrated hot-swap MOSFET: use the QFN exposed pad with a solid ground pour to conduct switching-inrush heat into the PCB, and place bulk capacitance at VDD and the gate-driver output per the MPS datasheet recommendations. This page synthesizes distributor pricing context, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
MP8007GV-Z - 13W 802.3af/at PoE PD Controller | MPS
The Monolithic Power Systems MP8007GV-Z is a fully integrated IEEE 802.3af/at-compatible Power over Ethernet (PoE) Powered Device (PD) interface and power converter controller, delivering up to 13W in isolated or non-isolated designs and housed in a 28-pin QFN (4x5 mm) package. A PoE PD interface is the circuit block inside a powered device - such as an IP camera, wireless access point, or VoIP phone - that negotiates and safely draws power from the Ethernet cable according to the IEEE 802.3af/at standard. It sits at the top of the power-management hierarchy: PoE PD interface -> hot-swap/power-switch IC -> power management IC -> semiconductor. The PD interface performs detection, classification, and controlled inrush before handing power to the downstream DC-DC converter stage. The MP8007 integrates all IEEE 802.3af/at required functions: signature detection, classification, a 120mA inrush current limit, an 840mA operating current limit, and an internal 100V-rated hot-swap MOSFET. Integrating the MOSFET eliminates an external pass device, reducing BOM count and board area compared with two-chip PD interface plus MOSFET solutions. The integrated DC-DC converter uses fixed peak-current-mode control, supporting both isolated (flyback) and non-isolated (buck) topologies targeted at 13W PoE applications. This single-chip approach simplifies magnetics selection and loop compensation for mid-power powered devices. Typical applications include IP surveillance cameras, IEEE 802.11 wireless access points, VoIP telephones, network-attached IoT gateways, and industrial Ethernet endpoints powered entirely over the data cable. Design consideration: verify the input diode bridge and transient suppression ahead of the PD interface survive the 100V backfeed and surge events defined by IEEE 802.3af/at; the internal 100V hot-swap MOSFET provides margin but the front-end passives must be rated accordingly. This page synthesizes distributor availability, drop-in alternatives, and practical design guidance not found in a single manufacturer datasheet.
MP8009AGV-Z - 802.3af/at PoE PD Interface & Flyback Controller | MPS
The Monolithic Power Systems MP8009AGV-Z is a fully integrated IEEE 802.3af/at-compliant Power over Ethernet (PoE) powered device (PD) interface with an integrated high-efficiency flyback/forward converter controller, housed in a 28-pin QFN (4x5 mm) package. It combines a complete PD interface and a switching power supply controller in a single IC. A PoE powered device interface is the circuitry at the powered end of an Ethernet link that negotiates and receives power from a PoE switch or injector (the power sourcing equipment, PSE). Within the power management IC hierarchy, the MP8009AGV-Z belongs to the PoE powered device controller family, a subset of Power over Ethernet power interface ICs used in networking and industrial connectivity systems. Key features include full IEEE 802.3af/at functionality covering detection, 1-event and 2-event classification, a 120 mA inrush current limit, an 840 mA operational current limit, and an integrated 100 V rated hot-swap MOSFET that eliminates an external pass device. A 32 ms soft-start time gives controlled converter startup. On the converter side, the flyback/forward controller supports isolated and non-isolated PD power supply topologies, allowing designers to build the downstream DC-DC conversion stage around a single controller IC. Integration of the hot-swap MOSFET, PD interface state machine, and converter controller reduces bill-of-material count and board area compared with discrete PD interface plus separate PWM controller solutions. Typical applications include IP security cameras, wireless access points, VoIP phones, and networked industrial sensors that draw power directly over the Ethernet cable, where the MP8009AGV-Z provides PD detection, classification, inrush limiting, and isolated flyback conversion from the 48 V PoE input rail. Design consideration: verify transformer selection and feedback loop compensation against the MPS MP8009A datasheet design equations, and ensure PCB creepage on the 100 V input side meets the requirements of the target PoE class and isolation specification. This page synthesizes distributor pricing, drop-in alternative analysis, application guidance, and practical design notes not found in the manufacturer datasheet, with data verified against MPS and distributor sources as of 2026-10-19.
MP8020GQV-Z - IEEE 802.3af/at/bt PoE PD Controller | MPS
The Monolithic Power Systems MP8020GQV-Z is an IEEE 802.3af/at/bt-compliant Power over Ethernet (PoE) powered device (PD) interface controller with an internal 100V hot-swap MOSFET, housed in an 18-pin QFN (3x5 mm) package. It supports detection, 5-event classification, input current (IIN) control, and configurable inrush current limiting for single-channel PoE PD designs up to 802.3bt power levels. A PoE powered device interface controller is the front-end power management IC that sits between the Ethernet cable and the isolated DC/DC converter inside a powered device. Within the power management IC hierarchy, it belongs to the family of hot-swap and power-path controllers: it safely negotiates power with the PoE power sourcing equipment (PSE), classifies the power class, and limits inrush current when the 48V-class input rail connects to the downstream converter. The MP8020 performs this role while integrating the pass element, reducing external component count. Key features include full IEEE 802.3af (PoE), 802.3at (PoE+) and 802.3bt compliance, an internal 100V-rated hot-swap MOSFET that eliminates the need for a discrete external pass device in typical designs, and a GATE1 driver that supports an external low-RDS(ON) MOSFET for high-power designs. The device also provides configurable inrush current limiting during start-up and operational current limiting once the internal MOSFET is fully enhanced. Architecturally, the MP8020 integrates the detection, classification and current-control functions required by the IEEE 802.3 standard, and adds automatic maintain power signature (MPS) handling so the connected PSE keeps power applied during low-load intervals. A power good (PG) output enables controlled enable of the downstream DC/DC converter, supporting clean power sequencing. Typical applications include IP security cameras, wireless access points, VoIP phones, network switches and other Ethernet-powered endpoints that must draw power from the data cable under 802.3af/at/bt. The 100V internal MOSFET rating provides margin against PoE transients. Design consideration: for high-power 802.3bt designs, use the GATE1 driver with an external low-RDS(ON) MOSFET to reduce conduction losses; size the inrush limit so the downstream bulk capacitor charges without tripping the operating current limit. This page synthesizes distributor availability data, the MPS product information, and practical design notes not found in the manufacturer datasheet alone. Pricing and inventory as of 2026-10-19.
MP8759GD-P - 8A, 26V Sync Buck Converter | MPS
The Monolithic Power Systems MP8759GD-P is a fully integrated, high-frequency synchronous step-down (buck) switch-mode converter delivering 8A of continuous output current (10A peak) in a compact 12-pin PowerVFQFN (QFN-12) package. It accepts a wide input supply range and produces an adjustable output from 0.6V (feedback reference) up to 5.5V, with excellent load and line regulation. A synchronous buck converter (also called a step-down or DC-DC switching regulator) is a power management IC that uses integrated high-side and low-side MOSFETs, an oscillator, and a control loop to convert a higher input voltage into a lower regulated output with high efficiency. Within the power-management hierarchy, it sits between raw supply rails (such as 12V or 24V buses) and point-of-load consumers like processors, FPGAs, and memory. Key features include 8A continuous / 10A peak output current, a wide input range suited to 12V and 24V intermediate bus architectures, low quiescent current for light-load efficiency, and a high switching frequency that shrinks external inductor and capacitor sizes. MPS' proprietary control topology keeps efficiency high across a wide output-current load range, which is critical in always-on and multi-rail systems. Technically, the MP8759 integrates the power switches, gate drive, and compensation internally, offering a very compact single-inductor solution. Fixed-frequency switching operation enables predictable EMI filtering, and internal protection features such as cycle-by-cycle current limiting and thermal shutdown guard against fault conditions. Typical applications include FPGA and ASIC core/IO power rails, networking and telecom equipment point-of-load supplies, and industrial 12V/24V bus systems that need a compact high-current step-down stage. When designing with the MP8759GD-P, pay attention to PCB layout: place the input ceramic capacitors and inductor close to the IN and SW pins, and use solid ground planes to minimize the high-frequency switching loop. Verify thermal dissipation at full 8A load with the QFN-12 exposed pad soldered to a copper pour. This page synthesizes distributor pricing, drop-in alternatives, comparison data, and practical design notes not found in the manufacturer datasheet, giving engineers a one-stop selection resource.
MPC17510EJR2 - 1.2A 15V H-Bridge DC Motor Driver | NXP
The NXP MPC17510EJR2 is a monolithic CMOS H-Bridge DC brushed motor driver IC rated for 1.2 A continuous output and an operating voltage range of 2 V to 15 V, housed in a 24-pin TSSOPW (TSSOP with exposed thermal pad) package. Designed for portable electronics, it integrates four power MOSFETs in an H-bridge topology with a built-in charge pump to drive the high-side N-channel FETs, plus internal PWM current control up to 200 kHz. The control logic is CMOS-parallel, accepting logic-level IN1/IN2 inputs with an enable pin for clean power sequencing. An H-bridge DC brushed motor driver is a type of motor driver and motion controller that uses four switching transistors arranged in an H configuration to drive current through a DC brushed motor in either direction. It belongs to the motor driver IC family, which sits within the broader power management and mechatronic signal chain category. H-bridge drivers are the standard solution for low-voltage reversible DC motor control, replacing discrete relay or transistor pairs with a single integrated solution that adds shoot-through protection, current limiting, and thermal shutdown. Key features include a low on-resistance of typically 0.5 ohm per FET (1 ohm H-bridge total), built-in flyback/clamp diodes, selectable PWM current-control threshold, and a charge-pump CRES reservoir pin that can also accept an external gate-drive supply. Logic inputs are TTL/CMOS compatible, and the device includes undervoltage lockout and thermal shutdown protection. The TSSOPW-24 package provides a low thermal-resistance path via the exposed pad for dissipating up to approximately 1.6 W in continuous operation. The MPC17510 uses a charge-pump topology to fully enhance the high-side N-channel MOSFETs, eliminating the need for a P-channel or external bootstrap circuit. The output stage is protected by internal clamp diodes, simplifying the PCB by removing external flyback components in most low-inductance motor applications. The device operates with a simple parallel CMOS interface and supports PWM frequency up to 200 kHz, which is high enough to be inaudible in audio-adjacent applications. Typical applications include digital still cameras, single-lens reflex cameras, camcorders, lens autofocus/zoom mechanisms, small brushed DC gear motors in portable devices, toys and robotics, and battery-powered pump or valve actuators. The 2 V minimum supply makes it compatible with single-cell Li-ion and multi-cell NiMH chemistries. When designing with this part, place the exposed thermal pad on at least 200 mm² of copper pour to keep junction temperature within safe limits. Add a 0.1 µF bypass capacitor directly on the VM supply pin and a reservoir capacitor on CRES per datasheet recommendations. This page synthesizes distributor pricing, drop-in alternatives, application notes, and PCB design guidance not available from the manufacturer datasheet alone.
MPC17511AEVEL - 1A H-Bridge Motor Driver, 2.7-5.7V, 16-VMFP | NXP
The NXP MPC17511AEVEL is a monolithic CMOS H-bridge motor driver rated for 1 A continuous output current in a 16-VMFP (16-SSOP exposed-pad variant) surface-mount package. It operates from a 2.7 V to 5.7 V logic supply and drives loads between 2 V and 6.8 V, making it well suited to small brushed DC motors and bipolar stepper windings in portable equipment. An H-bridge driver (also called a full-bridge driver) is a four-switch topology that can drive a load in both polarities from a single supply. H-bridges sit beneath stepper motor drivers, DC motor drivers, and motor-driver PMICs in the broader power management IC hierarchy. The MPC17511AEVEL integrates the four switches, gate drivers, control logic, and protection into one IC, eliminating the discrete MOSFET complexity that older designs required. Key features include 1 A peak output current, low on-resistance DMOS output stages, parallel CMOS logic interface inputs (IN1, IN2, enable), shoot-through protection, undervoltage lockout, thermal shutdown, and a logic supply range compatible with 3.3 V and 5 V microcontrollers. The exposed pad (VMFP) lowers thermal resistance, allowing sustained 1 A operation without an external heatsink on moderately sized PCB copper pours. The device uses an advanced BiC/DMOS process that combines CMOS control with DMOS power devices on one die. The architecture delivers fast switching (typical 200 ns propagation), low quiescent current, and integrated protection that would otherwise require external comparators and FETs. According to NXP datasheet MC17511, the device targets portable battery-powered designs where board space and efficiency are critical. Typical applications include DSLR camera autofocus and zoom motors, portable printer paper-feed steppers, lens iris control, small valve and pump drivers, robotic actuators, and consumer toys. Battery-powered tools and medical pumps also use this topology. When designing with this part, keep the high-current traces short and wide, tie the exposed pad to a solid ground pour, and place the 100 nF VMM bypass capacitor within 3 mm of the supply pin. For bipolar stepper operation, two MPC17511AEVEL devices are typically required (one per winding). This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not collected in the manufacturer datasheet.
MPC17517DTBR2 - 1.2A H-Bridge DC Motor Driver IC | NXP
The NXP MPC17517DTBR2 is a monolithic H-bridge power IC designed for portable electronic applications to control small brush DC motors and solenoids, providing up to 1.2 A peak output current from a 16-pin TSSOP surface-mount package. It operates from a logic supply of 2.7 V to 5.7 V and a motor load supply of 3 V to 6.8 V, making it well suited to battery-powered devices using one or two Li-ion cells, USB rails, or 5 V system buses. A brushed DC motor driver (also called an H-bridge) is a type of motor-driver IC that uses four switching transistors arranged in an 'H' topology to drive a motor in forward, reverse, brake, and high-impedance states. Within the broader power-management hierarchy, the MPC17517DTBR2 sits between low-current logic/motor-driver ICs and high-current discrete H-bridges, occupying the sub-2 A niche that targets small consumer appliances, camera lens focus/iris mechanisms, and portable printer or scanner paper-feed motors. Its totem-pole output stage and parallel MOSFET output stage deliver the high peak currents required for motor start-up and stall conditions. Key features include a wide motor supply range of 3 V to 6.8 V, separate logic supply pin for digital interface isolation, integrated flyback/clamp diodes to handle inductive kickback, low on-resistance output stages for reduced power dissipation, and built-in thermal shutdown protection. According to the Freescale/NXP datasheet, the part can also operate with supply voltages as low as 2.0 V in some configurations, with internal charge-pump-derived gate drive to ensure the N-channel power FETs enhance fully even at low VCC. Typical applications include digital and SLR camera lens autofocus/zoom control, portable printer paper feed, toy DC motor control, solenoid and valve drivers, and small robotic actuator control. The TSSOP-16 footprint allows compact PCB layouts in space-constrained portable designs. When designing with this part, ensure adequate decoupling on both VCC (logic) and VM (motor) supplies close to the body. Use a bulk capacitor on VM sized to handle the motor's stall current transients, and verify the thermal pad land pattern supports the expected continuous dissipation under worst-case motor-load conditions. This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes not consolidated in the manufacturer datasheet alone.
MPC17529EP - 0.7A Dual H-Bridge Motor Driver | NXP | 24-QFN-EP
The NXP MPC17529EP is a 0.7 A dual H-Bridge motor driver with 3.0 V/5.0 V compatible logic I/O, housed in a 24-pin QFN-EP (4x4 mm) package with exposed thermal pad. It operates from a 2.7 V to 5.6 V logic supply and drives motor loads from 2.0 V to 6.8 V, supporting bipolar stepper motors and brush DC motors in portable electronic equipment. According to the NXP datasheet, the device integrates an on-board charge pump, built-in shoot-through current protection, and an undervoltage shutdown function. A dual H-Bridge motor driver is a power IC that contains two complete H-bridge output stages, each capable of steering current through a motor winding in both directions. The H-bridge topology is the standard building block of DC motor control, allowing forward, reverse, brake, and high-impedance states from a single low-voltage logic interface. Within the broader system hierarchy, this device sits in the Motor Drivers sub-category of Power Management, itself part of Motion Control ICs in industrial and consumer electronics. Key features include 0.7 A continuous output current per bridge, low RDS(on) MOSFET output stages, parallel MCU interface with 3.0 V/5.0 V logic compatibility, on-chip charge pump for the high-side drivers, and integrated shoot-through protection that prevents cross-conduction. The 24-QFN-EP package provides low thermal resistance through its exposed pad, enabling sustained output current without external heatsinking in typical portable applications. The architecture uses a CMOS parallel interface with four logic inputs that directly control each half-bridge, allowing simple firmware-only PWM speed control. Independent control of each H-Bridge enables simultaneous driving of one bipolar stepper (full-step or half-step) or two brush DC motors. The integrated charge pump generates the gate drive voltage for the high-side N-channel MOSFETs, eliminating the need for an external bootstrap capacitor. Typical applications include camera lens focus and zoom actuators, disk drive head positioners, robotic actuators in toys, and portable printers. The wide 2.0 V to 6.8 V load supply range and low quiescent current make the part well-suited to single-cell Li-ion or two-cell alkaline battery-powered systems where board area and efficiency are critical. When designing with this device, place the exposed pad on a minimum 1 square inch copper pour to keep junction temperature within the 150 C TJ rating. Decouple both VCC and VM pins with 1 uF ceramic capacitors placed within 2 mm of the respective pins to suppress switching transients. The IN1/IN2 inputs should not be left floating; tie them to defined logic levels through 100 kohm pull resistors if the MCU starts in high-impedance.
MPC17529EPR2 - Dual H-Bridge Motor Driver IC | NXP Semiconductors
The NXP Semiconductors MPC17529EPR2 is a monolithic dual H-Bridge motor driver IC designed for portable electronic applications operating from a 2.7 V to 5.6 V supply, delivering up to 700 mA per channel in a compact 24-pin QFN-EP (4x4 mm) package with exposed thermal pad. A dual H-Bridge motor driver is a power-management IC that integrates four low-side and four high-side switches plus their gate-drive and protection circuitry into a single CMOS die, allowing a designer to drive bipolar stepper motors or two brushed DC motors bidirectionally from logic-level inputs. The MPC17529EPR2 belongs to NXP's MPC17xxx family of fully integrated motor-driver power stages and sits within the broader category hierarchy: motor driver -> motor control IC -> power management IC -> semiconductor. Key features include a 2.7 V to 5.6 V supply range with a 2 V to 6.8 V load range, 700 mA continuous output per H-bridge, a parallel CMOS logic interface that is 5 V compatible, internal shoot-through protection, thermal shutdown, and a low on-resistance power stage. The device integrates all four power FETs per bridge, the control logic, and the charge pump into a single die, eliminating the need for external bootstrap capacitors. Typical applications include bipolar stepper motors used in camera autofocus and zoom mechanisms, dual brushed DC motors for portable media players, robotic toys, and small actuator drives in handheld instrumentation. The 5 V tolerant logic interface allows direct connection to 3.3 V or 5 V microcontrollers without level shifters, simplifying design-in for portable consumer products. When using this part, observe derating above 25 C ambient due to the small QFN-EP thermal pad area, place input and motor bypass capacitors close to the package, and avoid switching the H-bridge without proper dead-time management - the internal logic handles this automatically but motor-wiring inductance must be minimized to reduce EMI on the supply rail. This page synthesizes distributor pricing, drop-in alternative listings, and practical design considerations that go beyond the manufacturer datasheet alone, including pin-by-pin functional descriptions and a cross-brand compatibility assessment for end-of-life planning.