Convertidores DC-DC
Productos (770)
LTC3899EFE - 60V Triple Output Buck/Buck/Boost Sync Controller | ADI
The Analog Devices LTC3899EFE is a high-performance triple-output (two buck + one boost) synchronous DC/DC switching controller housed in a 38-pin exposed-pad TSSOP package (TSSOP-38-EP). It operates over a wide 4.5V to 60V input range and drives all N-channel synchronous power MOSFET stages from a constant-frequency current-mode architecture that supports phase-lockable switching up to 850 kHz. The three outputs can be configured as two bucks and one boost (with PassThru), making the part well-suited to 12V/24V/48V industrial and automotive supply rails where a single IC must generate multiple regulated voltages plus a high-side boost for high-current transient loads. A buck/buck/boost synchronous controller is a multi-rail DC/DC converter IC that combines two step-down (buck) channels and one step-up (boost) channel into one package, sharing an internal reference, oscillator and housekeeping logic. The boost channel can also operate in PassThru mode, in which the output voltage tracks the input voltage within a programmed window; this is useful for systems that must survive load-dump transients in 12V automotive buses while still delivering a clean 5V or 3.3V rail. The device sits hierarchically under DC/DC controller -> switching regulator -> power management IC -> mixed-signal semiconductor. Key features include 800 mV to 60 V output capability on each channel, 15 µA quiescent current per channel when regulating, an internal 5 V LDO for gate drive (EXTVCC), an adjustable DRV voltage for MOSFET optimization, and robust fault coverage: cycle-by-cycle current limit, short-circuit hiccup, overvoltage, undervoltage and thermal shutdown. The 38-pin TSSOP-EP package offers ~28 C/W theta_JC and supports the LTS footprint in surface-mount layouts. Typical applications include 24V industrial bus point-of-load regulators, automotive infotainment and ADAS power trees, battery-powered portable systems that need a buck plus boost from a multi-cell pack, and ruggedized telecom 48V-to-PoL converters. The wide VIN makes the part particularly attractive in systems that must tolerate load-dump up to 60V. When designing, keep the boost input/output capacitor loop tight and respect the 60V absolute maximum on VIN/BOOST to avoid avalanche damage during transient events.
LTC7132EY - Dual 25A PolyPhase Step-Down Regulator | Analog Devices
The Analog Devices LTC7132EY is a dual-output PolyPhase synchronous step-down monolithic DC/DC regulator rated for 25A per output (50A combined) and packaged in a 140-ball 12mm x 11mm FBGA. The device operates from a wide input range and provides adjustable outputs down to 0.5V with digital PMBus-compliant I2C telemetry and on-chip non-volatile memory for configuration storage. A buck (step-down) DC/DC converter is a switching regulator category that reduces a higher DC input voltage to a lower, precisely regulated output voltage. Within the broader taxonomy of power management ICs, the LTC7132EY sits at the high-current, multi-rail, digitally-managed end of the spectrum: buck regulator > synchronous step-down regulator > PolyPhase regulator > digital PMBus power management IC > power management semiconductor. This hierarchy explains why the part is specified in telecom, datacom, and FPGA/ASIC point-of-load contexts. The LTC7132 employs constant-frequency peak current-mode control with a unique PolyPhase architecture that splits the 25A per rail into interleaved phases to reduce input/output ripple and shrink bulk capacitors. Integrated N-channel MOSFETs, the gate drivers, the feedback loop compensation, and the PMBus interface live in a single die; only input capacitors, output inductors, sense resistors, and feedback resistors are external. Internal EEPROM (NVM) retains trim, fault thresholds, and telemetry configuration through power cycles, eliminating external programming components. Key parametric highlights include: 25A continuous output per channel (up to 50A combined in parallel), PMBus 1.2 compliant I2C serial interface with status telemetry for VIN, VOUT, IOUT, temperature, and switching frequency, internal non-volatile memory for configuration, programmable current limit, and a thermally-enhanced FBGA package with an exposed die-side ground paddle for low theta-JA. The switching frequency is resistor-programmable. Typical applications include 48V telecom intermediate bus conversion to 3.3V, 5V, or 1.8V point-of-load rails, FPGA/ASIC core and transceiver supply in datacom switches and routers, industrial test and measurement equipment requiring PMBus telemetry, and high-end server/storage boards needing tightly managed multi-rail sequencing. The PMBus interface also enables real-time monitoring of input voltage, output voltage, output current, junction temperature, switching frequency, and fault status. When designing with the LTC7132EY, prioritize PCB layout to keep the high-current loops and the small-signal ground return paths short and isolated. Place input ceramic capacitors immediately adjacent to the VIN balls and use the full bottom-side ground paddle as a heat spreader with adequate thermal vias. Use the PMBus interface to set soft-start, OV/UV thresholds, current limit, and switching frequency rather than relying solely on external pins. This page synthesizes distributor pricing, verified drop-in alternatives, application circuits, and design guidance not consolidated in the manufacturer datasheet. Engineers selecting a 25A-class PolyPhase regulator with PMBus telemetry will find the comparison table, FAQ, and design notes useful for sourcing and BOM validation decisions.
LTC7132IY - Dual 25A PolyPhase Step-Down DC/DC Regulator | ADI
The Analog Devices LTC7132IY is a dual-output PolyPhase synchronous step-down monolithic DC/DC regulator that delivers up to 25 A per channel (50 A total) from an input range of 4.5 V to 20 V, housed in a 140-ball BGA package. It features an adjustable output of 0.5 V to 5.5 V, I2C/PMBus-compliant digital power system management (PSM) with on-chip NVM, and a constant-frequency current-mode architecture engineered for high-current, low-voltage core rails. An LDO (low-dropout) is a type of linear regulator that maintains a stable output voltage even when the input voltage approaches the output voltage. The LTC7132IY belongs to the broader category of DC/DC switching regulators (buck converters) which step down a higher DC voltage to a lower DC voltage using high-frequency switching, an LC output filter, and synchronous MOSFET rectifiers. Within the power management IC hierarchy, it sits as a multiphase synchronous buck controller-regulator, sharing ancestry with point-of-load regulators and PMBus-monitored POL devices used in telecom, datacom, and computing infrastructure. Key features include 25 A continuous output per phase, parallelable PolyPhase operation for higher currents, differential output voltage sensing, integrated MOSFETs, ±1 percent maximum DC output voltage error, internal temperature monitor, and a programmable switching frequency. The PMBus interface provides output voltage margining, fault telemetry, telemetry of VIN/IOUT/TIN, and write-protection of fault thresholds for adaptive platform power management. A 4 mm × 7 mm footprint delivers high power density. The LTC7132IY uses a peak current-mode control architecture with cycle-by-cycle current limit and adaptive internal compensation, eliminating the need for external compensation components. The internal drivers, MOSFETs, inductor DC resistance (DCR) sensing network, and bootstrap supply reduce external BOM to input capacitors, output capacitors, inductors, and feedback resistors. The digital interface supports 400 kHz PMBus operation with telemetry of input voltage, output voltage, output current per phase, die temperature, and switching frequency, all readable via standard PMBus commands. Typical applications include ASIC/FPGA/DSP core voltage regulation, telecom and datacom point-of-load rails, server and storage processor power, industrial automation, and high-density distributed power systems. PolyPhase interleaving reduces input ripple current and output voltage ripple while spreading thermal dissipation across multiple phases, which suits high-current ASICs and FPGAs in networking line cards and base stations. When designing, calculate worst-case power dissipation at maximum VIN (20 V) and minimum VOUT (0.5 V), where 24.5 V·I drop can reach 12 W per phase and demand substantial PCB copper for thermal management. Select output inductor DCR carefully because it directly affects current-sense accuracy and load-line regulation, and provide input bulk capacitance rated for the combined ripple current of both phases.
LTC7132IYPBF - Dual 25A PolyPhase Buck Regulator with PMBus | ADI
The Analog Devices LTC7132IYPBF is a dual-output, PolyPhase synchronous step-down DC/DC monolithic regulator rated for 25A per channel (50A total) with an integrated I2C/PMBus compliant digital power system management interface. Housed in a 140-ball BGA (FBGA) package, the part integrates high-side and low-side MOSFETs, eliminating external power switches. The constant-frequency current-mode architecture supports multi-phase operation for parallel current sharing between two outputs or for higher output power using multiple ICs. A step-down (buck) DC/DC switching regulator converts a higher DC input voltage to a lower regulated DC output voltage by rapidly switching an inductor and smoothing with output capacitance. The "PolyPhase" architecture interleaves multiple regulator phases to reduce input/output ripple and distribute thermal dissipation across phases. LTC7132IYPBF belongs to the hierarchy: synchronous buck regulator -> step-down switching regulator -> DC/DC converter -> power management IC -> semiconductor. The integrated PMBus interface places this part in the broader category of "digitally-managed POL" (point-of-load) converters used in telecom, datacom and computing infrastructure. Key specifications include a wide 4.5V to 60V input voltage range (suitable for 12V, 24V, 48V telecom/datacom buses), 0.5V to 3.3V adjustable output range, 25A continuous output per channel, integrated N-channel MOSFETs, and parallel PolyPhase capability. The on-board EEPROM stores custom configuration for autonomous power-up without host intervention. Programmable parameters include VOUT, switching frequency, soft-start, current limit, and fault response. Differential output voltage sensing and active voltage positioning (AVP) optimize transient response and reduce output capacitance requirements. Typical applications include 48V-to-POL conversion in telecom/datacom equipment, FPGA and ASIC core/serdes voltage rails, server and storage point-of-load regulation, industrial automation power, and high-current distributed power systems. The 140-FBGA package enables compact high-density layouts with excellent thermal performance via the die-attached thermal pad. Designers should pay close attention to input bulk capacitor sizing for 60V transient survival, output inductor selection for ripple/current targets, and the exposed-pad PCB layout for thermal dissipation. The PMBus address strap resistors and SYNC pin configuration must follow the reference design to avoid multi-controller contention. This page synthesizes distributor pricing, parametric comparisons and practical design notes not found in the manufacturer datasheet alone, including side-by-side drop-in alternatives in the same FBGA footprint and quantified thermal guidance for multi-phase operation.
LTC7802JUFDM#WPBF - 40V Low IQ Dual Step-Down Controller | ADI
The Analog Devices LTC7802JUFDM#WPBF is a high-performance dual step-down synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages in a 28-lead 4x5 mm QFN package with wettable flanks. It operates over a 4.5V to 40V input range, supports output voltages down to 0.8V, and switches up to 3 MHz with a phase-lockable architecture. The constant-frequency current-mode control delivers ±1% output accuracy and supports 2-phase operation for reduced input ripple. A step-down synchronous DC/DC switching controller is a semiconductor that regulates an output voltage by rapidly switching a pair of MOSFETs between charging and discharging an inductor. Compared with linear regulators, switching controllers achieve high efficiency across wide VIN/VOUT ratios, placing them at the heart of the power management IC hierarchy: switching controller -> DC-DC converter -> voltage regulator -> power management IC. The LTC7802 family adds low-IQ Burst Mode operation, extending the family lineage from earlier ADI controllers such as the LTC3866 and LTC3897. Key features include 99% maximum duty cycle for low dropout, internal top and bottom N-channel MOSFET drivers, an internal 100 kohm MODE pin pull-down for default Burst Mode operation, an EXTVcc LDO for driver supply, and per-channel PGOOD indicators. A precision 0.8V reference and selectable light-load modes (Burst Mode, pulse-skip, or forced continuous current) enable designers to optimize efficiency versus output ripple. Spread-spectrum frequency modulation is selectable via the PLLIN/SPREAD pin to ease EMI compliance in automotive and industrial systems. The LTC7802 uses a peak current-mode architecture with cycle-by-cycle current limiting and a phase-locked loop that synchronizes to an external clock between 100 kHz and 3 MHz. The 2-phase current-sharing topology doubles the effective ripple frequency at the input capacitor, reducing input ripple voltage by up to 50% versus a single-phase design. Internal bootstrap switches eliminate external Schottky diodes, while the high-side gate drivers tolerate 40V abs-max VSW transients. The result is a flexible controller family suitable for automotive 12V/24V systems, industrial 24V buses, battery-powered portable equipment, and high-current point-of-load rails. Typical applications include dual-output telecom and networking infrastructure supplies, automotive ECU and infotainment power rails, industrial 24V PLC and motor-control auxiliaries, battery-powered portable instruments, and low-noise FPGA/ASIC multi-rail power. The wide input range and 2-phase capability suit high-current point-of-load converters feeding ASICs and FPGAs that demand both efficiency and low EMI. When designing, derate the junction temperature for the 28-QFN-EP 4x5 mm package using the manufacturer-specified theta_JA value and provide at least four thermal vias under the exposed pad. A minimum of 1 uF of low-ESR ceramic input capacitance per phase plus 22 uF bulk capacitance is recommended to keep input ripple below 50 mVpk-pk in 2-phase operation. This page synthesizes distributor pricing, parametric cross-reference data, and application design notes not found in the manufacturer datasheet, giving engineers a one-stop alternative selection and design reference for the LTC7802JUFDM#WPBF.
LTC7806JUFDM#WPBF - 40V, 3MHz 2-Phase Synchronous Boost Controller | ADI
The Analog Devices LTC7806JUFDM#WPBF is a 40V, low-IQ, 3MHz, 2-phase synchronous boost controller housed in a 28-lead (4mm x 5mm) plastic QFN package with an exposed pad, qualified for automotive AEC-Q100 applications. It supports input voltages from 4.5V to 40V and generates output voltages up to 36V from inputs as low as 5V, making it suitable for high-voltage automotive and industrial rails. The -40C to +150C junction temperature grade (JUFD suffix) gives it a wider operating envelope than the I-temp LTC7806IUFDM#WPBF variant. What is a boost controller? A boost (step-up) controller is a type of DC-DC switching controller that uses an external inductor and power switches to produce an output voltage higher than the input. The LTC7806 is a controller-only IC (no internal MOSFETs), so it drives external N-channel MOSFETs, allowing designers to scale output current by selecting MOSFETs of any desired Rds(on). It belongs to the hierarchy: boost controller -> DC-DC switching controller -> switching regulator -> power management IC -> semiconductor. Key features include 2-phase synchronous operation up to 3MHz switching frequency, 4.5V to 40V input range, output up to 36V, low quiescent current, robust overcurrent protection for safe startup, and AEC-Q100 screening for automotive designs. Synchronous rectification increases efficiency and reduces power losses compared to asynchronous boost designs. High-frequency 2-phase operation reduces input and output capacitor requirements and allows smaller inductors than the single-phase equivalent. The 2-phase architecture interleaves clock phases to cancel input ripple current, reducing RMS stress on the input capacitor and EMI filter. The exposed pad (EP) of the 4mm x 5mm QFN-28 package provides a low thermal resistance path (theta_JC of about 3 C/W), enabling high-power automotive boost applications up to tens of amps. Typical applications include automotive pre-boost supplies for audio amplifiers, LED drivers and headlight electronics, industrial 24V-to-36V bus converters, battery-powered systems requiring step-up conversion, point-of-load (POL) converters in distributed power architectures, and emergency/backup power where wide input transients are common. The J-grade +150C operating range supports under-hood automotive placements. When designing with this part, follow the datasheet guidance on output current sense resistor selection, soft-start capacitor sizing, and minimum on/off-time constraints. The exposed pad must be soldered to a sufficient copper pour (typically >= 1 sq inch on top + thermal via array to inner/outer planes) to keep junction temperature within the +150C maximum under worst-case load.
LTM4622EV - Dual 2.5A/Single 5A μModule Step-Down Regulator | Analog Devices
The Analog Devices LTM4622EV is a complete dual 2.5A step-down switching mode μModule (power module) regulator housed in an ultrathin 6.25mm × 6.25mm × 1.82mm LGA package, with a 6.25mm × 6.25mm × 2.42mm BGA option. The LGA package is the EV variant. Included inside the package are the switching controller, power FETs, inductors and all support components, requiring only input/output capacitors and feedback resistors externally. With an input voltage range of 3.6V to 20V and two outputs adjustable from 0.6V to 5.5V, each channel delivers 2.5A, or both channels can be paralleled for a single 5A output. A μModule regulator is a complete DC-DC switching power supply integrated into a single surface-mount package that includes the controller IC, power MOSFETs, magnetics, and compensation components, simplifying point-of-integration to PCB-level placement of input/output capacitors and a feedback resistor divider. The LTM4622 belongs to the broader category of non-isolated point-of-integration (PoL) DC-DC converters within power management ICs, designed for direct mounting adjacent to load devices on digital boards. Key features include peak-current-mode control with cycle-by-cycle current limiting, internal frequency compensation, soft-start tracking, and an internal temperature monitor. The 1.5MHz default switching frequency (synchronizable from 0.75MHz to 1.5MHz) enables a compact solution footprint with low-ripple output. An output voltage tracking function and programmable soft-start support multi-rail sequencing in FPGA, ASIC, and processor power systems. The device is offered in E (extended -40°C to +125°C internal operating range), I (industrial), and MP (military plastic) temperature grades. The LTM4622 architecture uses a synchronous buck topology with internal high-side and low-side N-channel MOSFETs, inductor, and a constant-frequency peak-current-mode controller. Dual outputs share the same internal clock and can be configured for either independent operation or parallel single-output mode. Internal thermal monitoring and overtemperature shutdown protect the device under overload conditions. The LGA package variant (EV) provides the lowest profile for height-constrained applications. Typical applications include powering FPGAs, ASICs, DSPs, microprocessors, and high-density point-of-integration power systems in industrial, telecom, medical imaging, and test-and-measurement equipment. The dual-output configuration directly supplies core and I/O rails of modern digital ICs. For designs requiring higher output voltage or current, the LTM4622A variant (12V/2A) is pin-compatible. When designing with the LTM4622EV, place input bulk capacitance close to the VIN balls to handle inrush, and minimize the feedback trace length to reduce noise pickup. The exposed ground balls should be soldered to a continuous ground plane for both electrical return and thermal dissipation.
LTM4625IY#PBF - 5A 20V Step-Down μModule Regulator | Analog Devices
The Analog Devices LTM4625IY#PBF is a complete 5A step-down switching mode μModule (Power Module) regulator integrating the switching controller, power MOSFETs, inductor, and support components in a tiny 6.25mm x 6.25mm x 5.01mm 25-ball BGA package. It operates from an input voltage range of 4V to 20V (or 2.375V to 20V with an external bias supply) and supports an adjustable output voltage range of 0.6V to 5.5V set by a single external resistor. A μModule regulator is a system-in-package power conversion IC that combines the controller, power stage, magnetics, and passives inside one compact surface-mountable module. This approach eliminates discrete buck converter design complexity and shrinks PCB footprint compared to traditional discrete step-down implementations. The LTM4625 integrates all critical components into the BGA package, easing layout-driven EMI and providing a tightly controlled power path that simplifies EMI filter design and qualification. Key specifications include a continuous output current of 5A, peak efficiency above 90% at 12V input to 1.8V output, switching frequency programmable up to about 1MHz, and protections including overcurrent limit, output overvoltage, and thermal shutdown. The internal current limit adaptively thresholds between 6A and 7A to protect downstream components. Parallel operation of multiple LTM4625s enables higher load current sharing, and a PGOOD open-drain output signals valid output regulation. The device uses a constant-frequency peak current-mode control architecture that simplifies compensation and allows precise output voltage regulation across line, load, and temperature variations. The integrated inductor shields EMI while keeping output ripple low, and exposed ground balls on the underside provide low thermal impedance to the host PCB. The LTM4625I variants are rated for the full -40C to +125C internal operating temperature range. Typical applications include high-density point-of-load regulation in telecom and networking equipment, FPGA and ASIC core and I/O supplies in industrial controllers, test and measurement instrumentation rails, medical imaging and diagnostic systems, and any compact PCB requiring a tightly regulated 5A rail from a 12V or intermediate bus. The small footprint and integrated magnetics also suit embedded computing platforms where board real estate is at a premium. When designing with the LTM4625IY#PBF, observe proper BGA soldering reflow profiles per JEDEC J-STD-020 and provide adequate thermal vias under the package to the internal ground plane. Use the PGOOD signal to coordinate downstream power-good trees and consider the FCM/PLLIN pin for external synchronization if system noise must be aligned to a master clock. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
LTM4626IY#PBF - 12A, 20V µModule Step-Down Regulator | ADI
The Analog Devices LTM4626IY#PBF is a complete 12 A step-down switching mode µModule (micromodule) regulator in a tiny 6.25 mm × 6.25 mm × 3.87 mm BGA package. Operating from a 3.1 V to 20 V input rail, the device integrates the switching controller, power MOSFETs, inductor, and all supporting components inside one surface-mountable module, delivering an adjustable output from 0.6 V to 5.5 V at up to 12 A continuous load current. A µModule regulator is a system-in-package (SiP) power converter in which the controller, MOSFETs, magnetics, and bypass components are co-packaged and pre-tuned by the manufacturer. By collapsing a discrete buck circuit into a single BGA, µModule devices shorten PCB design cycles, reduce radiated EMI, and minimize board area. The LTM4626 family belongs to the broader PoL (Point-of-Load) DC/DC converter category within power management ICs, sharing its SiP DNA with the LTM4627, LTM4638, and LTM4681 families from Analog Devices. Key features of the LTM4626IY#PBF include ±1.5% total DC output accuracy, internal temperature monitoring with analog telemetry, selectable internal or external feedback, current-mode control for parallel multiphase operation, and programmable soft-start. The integrated inductor and FETs eliminate external loop-compensation components, simplifying the BOM to primarily input/output ceramic capacitors and feedback resistors. Architecturally, the LTM4626 uses a valley current-mode controller with internal top and bottom N-channel MOSFETs and a shielded drum-core inductor. The BGA's bottom-side thermal pad connects directly to PCB copper for heat spreading, enabling full 12 A operation without external heatsinks on typical 4-layer boards. Remote-sense inputs compensate for PCB IR drop. Typical applications include high-density FPGA/ASIC core and SERDES rails, telecom/datacom point-of-load conversion, PCIe and ATCA card power, industrial automation controllers, and any 12 V-bus distributed-power system needing a low-profile 6.25 mm-square footprint. Parallel multiple LTM4626 devices for 24 A, 36 A, and higher outputs. When designing with this device, follow the datasheet's reference layout for the BGA land pattern and decoupling scheme. Use X7R or X5R ceramic capacitors with low ESR at both VIN and VOUT, place return vias adjacent to PGND balls, and provide at least 1 oz copper pours over multiple inner layers to keep the junction temperature below 125°C under full load. This page synthesizes distributor pricing, drop-in equivalents, and practical layout notes not found in a quick glance at the datasheet, helping engineers select, qualify, and source the LTM4626IY#PBF efficiently.
LTM4643EY#PBF - Quad 3A µModule Regulator | Analog Devices
The LTM4643EY#PBF is a quad DC/DC step-down µModule (power module) regulator from Analog Devices, delivering 3A per output with a total capability of up to 12A when outputs are paralleled. It operates over an input voltage range of 4V to 20V, or 2.375V to 20V with an external bias supply, and supports an adjustable output voltage from 0.6V to 3.3V. The module integrates the switching controller, power FETs, inductors, and support components in a compact BGA-77 package, simplifying design and reducing board space. A µModule regulator is a complete DC-DC converter system-in-package that includes the controller, power stage, inductors, and compensation, offering a high level of integration and ease of use. It belongs to the broader category of power management ICs, specifically switching regulators, and is designed for point-of-load (PoL) applications where space is critical and efficiency is paramount. The LTM4643EY#PBF is part of the LTM4643 series, which is known for its ultrathin profile and high power density. Key features include a wide input voltage range, configurable output voltage, high efficiency, and the ability to parallel outputs for higher current. The module operates at a switching frequency up to 1.2 MHz, allowing for small external components. It also includes output voltage tracking and sequencing capabilities, making it suitable for complex power supply designs. The BGA-77 package provides excellent thermal performance, with a low thermal resistance that enables operation at high ambient temperatures without derating. The LTM4643EY#PBF uses a current-mode control architecture, ensuring stable operation over a wide range of load conditions. The integrated inductors and power FETs reduce parasitic losses, contributing to high efficiency across the load range. The module also features overcurrent and overtemperature protection, enhancing system reliability. Typical applications include power supplies for FPGAs, ASICs, processors, and other digital ICs in networking, telecommunications, industrial, and data center equipment. The quad output configuration is ideal for powering multiple voltage rails from a single module, reducing component count and board area. When designing with the LTM4643EY#PBF, it is important to consider input and output capacitor selection, as well as thermal management. The module's exposed pad should be connected to a large copper area for heat dissipation. Additionally, the input voltage range and output current requirements must be carefully evaluated to ensure proper operation.
LTM4643IY#PBF - Quad 3A μModule Regulator | Analog Devices
The LTM4643IY#PBF is a quad DC/DC step-down µModule (power module) regulator from Analog Devices, delivering 3A per output with a configurable output array capable of paralleling outputs for up to 12A. It integrates the switching controllers, power MOSFETs, inductors, and support components into a compact 16mm x 16mm x 1.82mm LGA package, simplifying power supply design and reducing board space. A µModule regulator is a complete system-in-package (SiP) power management solution that combines a DC-DC controller, power transistors, inductors, and compensation circuitry into a single surface-mount package. This integration eliminates the need for external inductor selection and layout optimization, reducing design risk and time-to-market. The LTM4643 belongs to the µModule regulator family, which is part of the broader DC-DC converter category within power management ICs. Key features include an input voltage range of 4V to 20V (or 2.375V to 20V with an external bias supply), four independent outputs each adjustable from 0.6V to 3.3V, and a high-efficiency synchronous step-down architecture. The module supports output voltage tracking, remote sense, and parallel operation for higher current. Its ultrathin profile (1.82mm) enables low-profile designs for space-constrained applications. Technically, the LTM4643 uses a current-mode control architecture with internal compensation, ensuring stable operation across a wide range of output capacitors. The integrated inductors and power FETs are optimized for efficiency and thermal performance. The module includes overcurrent and overtemperature protection, enhancing system reliability. The LGA package provides excellent thermal dissipation through its exposed pad, allowing operation at full load without additional heatsinking in many applications. Typical applications include FPGA, ASIC, and DSP core power supplies, where multiple low-voltage rails are required. The LTM4643 is also ideal for telecom, networking, and industrial systems that demand high-density, high-efficiency power conversion. Its ability to parallel outputs makes it suitable for high-current rails up to 12A. When designing with the LTM4643, ensure adequate input and output capacitance as specified in the datasheet. The module's internal compensation simplifies design, but proper PCB layout with a solid ground plane and thermal vias is essential for optimal thermal and electrical performance.
LTM4644EY#PBF - Quad 4A DC/DC μModule Regulator | Analog Devices
The LTM4644EY#PBF is a quad-output, non-isolated step-down DC/DC μModule (power module) regulator from Analog Devices, delivering up to 4A per output with a configurable output array that can be paralleled for up to 16A capability. It operates from a 4V to 14V input supply and provides adjustable outputs from 0.6V to 5.5V, making it ideal for powering FPGAs, ASICs, processors, and other high-density digital loads. The module integrates the switching controller, power MOSFETs, inductors, and supporting components in a compact BGA package, simplifying layout and reducing design risk. A DC/DC converter is an electronic circuit that converts a source of direct current (DC) from one voltage level to another. The LTM4644EY#PBF is a step-down (buck) converter, which reduces a higher input voltage to a lower output voltage with high efficiency. As a μModule, it encapsulates the entire power train in a single package, offering a complete power management solution that minimizes external components and PCB area. This product belongs to the broader category of power management ICs, specifically switching voltage regulators, and is widely used in distributed power architectures. Key features include four independent 4A outputs, each with its own SVIN pin for operation from input voltages as low as 2.375V, and a separate VIN pin for the power stage. The module supports output voltage tracking, remote sense, and parallel operation for higher current. It offers protection features such as overcurrent protection (OCP), overtemperature protection (OTP), and overvoltage protection (OVP). The operating temperature range is -40°C to 125°C, and the module is RoHS compliant. Technically, the LTM4644EY#PBF uses a current-mode control architecture with internal compensation, ensuring stable operation across a wide range of output capacitors. The integrated inductors and power FETs are optimized for efficiency up to 95%, reducing power loss and thermal stress. The module's BGA package provides excellent thermal performance, with the exposed pad facilitating heat transfer to the PCB. Typical applications include powering FPGAs, ASICs, DSPs, and memory in networking, telecommunications, industrial, and embedded systems. The quad-output configuration is particularly suited for multi-rail systems where multiple voltages are required, such as core, I/O, and auxiliary supplies. The ability to parallel outputs enables scaling to higher currents without redesign. When designing with this module, ensure adequate input and output capacitance as recommended in the datasheet, and provide a low-impedance ground plane for thermal and electrical performance. The SVIN pins allow independent control of each channel, enabling flexible power sequencing.
LTM4644IY#PBF - Quad 4A DC/DC μModule Regulator | Analog Devices
The LTM4644IY#PBF is a quad-output, non-isolated step-down DC/DC μModule (micromodule) regulator from Analog Devices, delivering up to 4A per output with a configurable output array capable of paralleling outputs for up to 16A. It operates from a 4V to 14V input supply and provides adjustable outputs from 0.6V to 5.5V. Housed in a 77-pin BGA package, this module integrates the switching controller, power MOSFETs, inductors, and supporting components, simplifying power supply design and reducing board space. A μModule regulator is a complete power management solution in a single package, combining the controller, power stage, inductors, and compensation into a compact module. This integration reduces design complexity, improves reliability, and accelerates time-to-market compared to discrete solutions. The LTM4644IY#PBF belongs to the DC-DC converter family, specifically a step-down (buck) regulator, which is essential in power management ICs for converting higher input voltages to lower, regulated output voltages. Key features include four independent 4A outputs, each adjustable from 0.6V to 5.5V, with the ability to parallel outputs for higher current. The module offers high efficiency, typically above 90%, and includes output voltage tracking, remote sense, and a precision reference. It operates over the -40°C to 125°C internal temperature range, with the I-grade version (IY) guaranteed for -40°C to 125°C, while the E-grade (EY) is specified for 0°C to 125°C. Technically, the LTM4644IY#PBF uses a current-mode control architecture with internal compensation, providing fast transient response and stable operation with ceramic output capacitors. The module supports frequency synchronization from 400kHz to 2.4MHz, allowing optimization for efficiency or size. Its BGA package offers excellent thermal performance, with a thermal resistance of 12°C/W, enabling high power density without external heatsinks in many applications. Typical applications include powering FPGAs, ASICs, processors, and memory in networking, telecommunications, industrial, and data center equipment. The quad outputs are ideal for multi-rail systems requiring sequenced power-up, and the high current capability supports core and I/O voltages. The module's wide input range and adjustable outputs make it versatile for various point-of-load (PoL) designs. When designing with the LTM4644IY#PBF, ensure adequate input and output capacitance as recommended in the datasheet, and consider thermal management for high-current operation. The module's integrated inductors and compensation simplify layout, but proper PCB design with sufficient copper area for heat spreading is critical for optimal performance.
LTM4644MPY#PBF - Quad 4A DC/DC μModule Regulator | Analog Devices
The LTM4644MPY#PBF is a quad output DC/DC step-down μModule (micromodule) regulator from Analog Devices, delivering 4A per output with a configurable output array capable of up to 16A. It operates from a 4V to 14V input supply and provides four independent outputs adjustable from 0.6V to 5.5V. Housed in a 16mm × 16mm × 5.01mm BGA package, this module integrates the switching controller, power FETs, inductors, and supporting components, simplifying power supply design and reducing board space. A μModule regulator is a complete power management solution in a single package, combining the controller, MOSFETs, inductors, and compensation circuitry. This integration reduces design complexity, improves reliability, and accelerates time-to-market. The LTM4644 belongs to the family of DC/DC converters, specifically non-isolated point-of-load (PoL) modules, which are essential in modern electronic systems for efficient voltage conversion. Key features include four 4A outputs that can be paralleled for higher current, a wide input voltage range of 4V to 14V, and an adjustable output range of 0.6V to 5.5V. The module offers high efficiency, typically above 90%, and includes output voltage tracking, remote sense, and overcurrent protection. The MP grade ensures operation over the full -55°C to 125°C internal temperature range, making it suitable for harsh environments. Technically, the LTM4644 uses a current-mode control architecture with internal compensation, providing stable operation with ceramic output capacitors. The module supports frequency synchronization from 400kHz to 1.8MHz, allowing optimization for efficiency or size. Its BGA package with 77 terminals ensures excellent thermal performance, with a junction-to-case thermal resistance of 6.5°C/W. Typical applications include high-performance computing, networking equipment, industrial systems, and aerospace/defense electronics. The wide temperature range and high reliability make it ideal for mission-critical applications. For instance, in FPGA and ASIC power supplies, the LTM4644 can provide multiple low-voltage rails with tight regulation. When designing with this module, ensure adequate input and output capacitance as specified in the datasheet. The MP grade is recommended for applications requiring extended temperature operation, while the E grade is suitable for commercial use. Proper thermal management, including a thermal pad connection to the PCB, is essential for maximizing performance.
LTM4650EY#PBF - Dual 25A or Single 50A μModule Regulator | Analog Devices
The LTM4650EY#PBF is a dual 25A or single 50A output switching mode step-down DC/DC μModule (power module) regulator from Analog Devices. It integrates the switching controllers, power FETs, inductors, and all supporting components in a compact 16mm × 16mm × 5.01mm BGA package. Operating from an input voltage range of 4.5V to 15V, it supports two outputs each adjustable from 0.6V to 1.8V, set by a single external resistor. The module is designed for high-density point-of-load (PoL) applications where board space is critical and thermal performance is paramount. A μModule regulator is a complete DC/DC converter system-in-package that includes the controller, power transistors, inductors, and compensation circuitry, reducing design complexity and time-to-market. It belongs to the broader category of switching regulators, which are more efficient than linear regulators for high-current applications. The LTM4650 leverages this integration to deliver up to 50A from a single module, simplifying thermal management and layout. Key features include dual 25A outputs (or single 50A in parallel), 4.5V to 15V input range, 0.6V to 1.8V output range, and a switching frequency that can be synchronized to an external clock. It supports multi-phase operation for higher current, Burst Mode operation for light-load efficiency, and output voltage tracking for supply rail sequencing. The module also includes an onboard temperature diode for monitoring device temperature. Technically, the LTM4650 uses a current-mode control architecture with internal compensation, ensuring stable operation with minimal external components. The integrated inductors and power FETs are optimized for low loss and high efficiency, achieving up to 90% efficiency at full load. The BGA package provides excellent thermal performance with a low thermal resistance from junction to case, enabling operation at high ambient temperatures with appropriate derating. Typical applications include high-current FPGA, ASIC, and processor core supplies, where the module's high efficiency and small footprint are essential. It is also used in telecom, networking, and industrial systems requiring multiple low-voltage rails. The LTM4650's ability to parallel outputs makes it suitable for applications needing up to 50A from a single module. When designing with the LTM4650, ensure adequate input and output capacitance as specified in the datasheet to maintain stability and transient response. The module's exposed pad should be soldered to a large copper area for heat dissipation. Also, consider the derating curve for output current versus ambient temperature to ensure reliable operation.
LTM4650IY#PBF - Dual 25A or Single 50A μModule Regulator | Analog Devices
The LTM4650IY#PBF is a dual 25A or single 50A output switching mode step-down DC/DC μModule (power module) regulator from Analog Devices. It integrates the switching controllers, power FETs, inductors, and supporting components in a compact BGA package, simplifying power supply design. Operating from an input voltage range of 4.5V to 15V, it supports two outputs each adjustable from 0.6V to 1.8V, set by a single external resistor. The module is designed for high-density point-of-load (PoL) applications where board space is critical. A μModule regulator is a complete DC/DC power supply in a single package, combining the controller, MOSFETs, inductor, and compensation into a module. This approach reduces design complexity, minimizes external component count, and accelerates time-to-market. The LTM4650 belongs to the family of μModule regulators, which are part of the broader category of switching voltage regulators and power management ICs. By integrating the magnetic components, the μModule ensures predictable performance and simplifies thermal management. Key features include dual 25A outputs or a single 50A output, 0.8% DC and 3% transient accuracy (for the -1A variant), and a wide input range of 4.5V to 15V. The module supports output voltage tracking and remote sensing for precise regulation at the load point. The LTM4650IY#PBF is the industrial temperature grade variant, guaranteed from -40°C to 125°C internal temperature, ensuring reliable operation in harsh environments. Technically, the LTM4650 uses a current-mode control architecture with internal compensation, providing fast transient response and stable operation. The integrated inductors and power FETs are optimized for efficiency, reducing power losses. The module includes overcurrent and overtemperature protection, enhancing system reliability. The BGA package (144 terminals) offers excellent thermal performance, with the exposed pad facilitating heat transfer to the PCB. Typical applications include high-current FPGA, ASIC, and processor power supplies, where multiple rails with tight voltage tolerances are required. The dual outputs can be paralleled to deliver up to 50A for a single rail, making it suitable for high-performance computing, networking, and telecommunications equipment. The wide input range also supports 12V bus architectures common in industrial and automotive systems. When designing with the LTM4650, ensure adequate input and output capacitance to meet transient requirements. The module's remote sense pins should be connected to the load point to maintain regulation accuracy. Thermal management is critical at high output currents; use a multi-layer PCB with thermal vias to dissipate heat effectively.
LTM4650MPY#PBF - Dual 25A/50A DC/DC μModule | Analog Devices
The LTM4650MPY#PBF is a dual 25A or single 50A output switching mode step-down DC/DC μModule (power module) regulator from Analog Devices. It integrates the switching controllers, power MOSFETs, inductors, and supporting components in a compact package, simplifying power supply design. Operating from an input voltage range of 4.5V to 15V, it provides two outputs, each adjustable from 0.6V to 1.8V, set by a single external resistor. The module is rated for the military temperature range of -55°C to +125°C, making it suitable for harsh environments. A DC/DC converter is an electronic circuit that converts a source of direct current (DC) from one voltage level to another. The LTM4650 is a step-down (buck) converter, which reduces a higher input voltage to a lower output voltage. As a μModule, it integrates the inductor and power stage into a single package, reducing design complexity and board space compared to discrete solutions. This module falls under the category of power management ICs, specifically non-isolated point-of-load (PoL) converters. Key features include dual 25A or single 50A output capability, high efficiency, and remote output voltage sensing for improved regulation at the load point. The module supports output voltage tracking and sequencing through the TRACK/SS pin, enabling controlled power-up in multi-rail systems. It also includes overcurrent and overtemperature protection, ensuring reliable operation under fault conditions. The LTM4650 uses a constant frequency current mode architecture, providing fast transient response and stable operation with ceramic output capacitors. The integrated inductors and power FETs are optimized for low loss, achieving efficiencies up to 90% at full load. The module's thermal performance is enhanced by its exposed pad package, which allows efficient heat transfer to the PCB. Typical applications include high-current FPGA, ASIC, and processor power supplies, where multiple low-voltage rails are required. It is also used in telecom and networking equipment, industrial systems, and military/aerospace electronics. The wide input range and high output current make it ideal for powering core voltages in advanced digital systems. When designing with the LTM4650, ensure adequate input and output capacitance for stability and transient performance. The TRACK/SS pin allows soft-start and sequencing, which is critical for systems with strict power-up requirements. Thermal management is essential at high output currents; use a multi-layer PCB with thermal vias to dissipate heat effectively.
LTM4676EY#PBF - Dual 13A μModule Regulator | Analog Devices
The LTM4676EY#PBF is a dual 13A or single 26A step-down μModule (micromodule) DC/DC regulator with digital power system management, manufactured by Analog Devices. It operates from a 4.5V to 26.5V input supply and provides two outputs, each adjustable from 0.5V to 5.4V, delivering up to 13A per output. The device is housed in a 16mm × 16mm × 5.01mm BGA package with 144 terminals, offering a compact, high-density power solution. A μModule (micromodule) is a complete power management solution integrated into a single package, combining the controller, power MOSFETs, inductors, and supporting components. This integration simplifies design, reduces board space, and improves reliability compared to discrete solutions. The LTM4676EY#PBF belongs to the family of digital power system management (DPSM) regulators, which enable remote configuration and telemetry monitoring via the PMBus interface, an open standard I2C-based digital communication protocol. Key features include PMBus-compliant digital interface for programming output voltages, margining, and monitoring of current, voltage, and temperature. The device supports pin-strapping resistors to set output voltages, switching frequency, and channel phase angle assignments at startup. It offers high efficiency and high density, making it suitable for space-constrained applications. The LTM4676EY#PBF is available with RoHS-compliant terminal finish, and the 'EY' suffix indicates the extended temperature grade (automotive, -40°C to +125°C). Technically, the LTM4676EY#PBF integrates a dual-channel synchronous step-down converter with digital control. It features a 40ms turn-on time and supports remote configurability and telemetry monitoring over PMBus. The device can be configured for dual 13A outputs or paralleled for a single 26A output. The switching frequency is programmable up to 1000kHz, allowing optimization between efficiency and component size. The BGA package provides excellent thermal performance, with an exposed pad for heat dissipation. Typical applications include high-performance computing, networking equipment, telecommunications, and industrial systems where precise voltage regulation and digital power management are required. The LTM4676EY#PBF is ideal for powering FPGAs, ASICs, processors, and memory in data centers and communications infrastructure. When designing with this device, ensure proper thermal management by using adequate PCB copper area and vias to dissipate heat from the BGA package. The PMBus interface allows real-time monitoring and control, but requires careful layout to avoid noise coupling. Refer to the LTM4676 datasheet for detailed application circuits and layout guidelines.
LTM4676IY#PBF - Dual 13A μModule Regulator | Analog Devices
The LTM4676IY#PBF from Analog Devices is a dual 13A or single 26A step-down μModule (power module) DC/DC regulator with digital power system management. It integrates the controller, power MOSFETs, inductors, and supporting components in a compact 16mm × 16mm BGA package, simplifying design and reducing board space. The module operates from a 4.5V to 26.5V input range and provides two outputs adjustable from 0.5V to 5.4V, each capable of delivering up to 13A. With a maximum switching frequency of 1MHz, it enables efficient power conversion for high-current applications. A μModule (micromodule) is a complete power management solution in a single package, combining the DC/DC controller, power stage, inductors, and compensation into one device. This approach reduces design complexity, minimizes external components, and accelerates time-to-market. The LTM4676IY#PBF belongs to the family of digital power system management modules, which allow remote configuration and telemetry monitoring via the PMBus interface, an open standard I2C-based digital protocol. This enables real-time control of output voltages, current limits, and fault thresholds, as well as monitoring of input/output voltages, currents, and temperatures. Key features include PMBus-compliant digital interface for remote configurability and telemetry, dual 13A or single 26A output capability, wide input voltage range of 4.5V to 26.5V, and adjustable output voltage from 0.5V to 5.4V. The module also features a 40ms turn-on time, which is beneficial for sequencing in multi-rail systems. The BGA package with 144 terminals provides excellent thermal performance, and the operating temperature range of -40°C to +125°C makes it suitable for industrial and automotive applications. Technically, the LTM4676IY#PBF uses a current-mode control architecture with integrated power MOSFETs and inductors, achieving high efficiency across a wide load range. The digital interface allows precise voltage margining and sequencing, which is critical for powering FPGAs, ASICs, and processors that require multiple supply rails with specific power-up sequences. The module also includes protection features such as overcurrent, overvoltage, and overtemperature shutdown. Typical applications include high-performance computing, data center servers, networking equipment, and industrial systems where high current density and digital power management are required. The module's ability to deliver 26A in a single output configuration makes it ideal for powering high-end CPUs and GPUs. When designing with this module, ensure adequate input and output capacitance to handle transient loads and maintain stability. The PMBus interface requires pull-up resistors on the SDA and SCL lines, and proper address configuration to avoid conflicts on the bus.
LTM4676MPY#PBF - Dual 13A μModule Regulator | Analog Devices
The LTM4676MPY#PBF is a dual 13A or single 26A step-down μModule (micromodule) DC/DC regulator from Analog Devices (formerly Linear Technology). It integrates fast analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors, and supporting components in a compact BGA package. The device operates from a 4.5V to 26.5V input range and provides two outputs adjustable from 0.5V to 5.4V, each capable of delivering up to 13A. It features remote configurability and telemetry-monitoring of power management parameters over PMBus, an open standard I2C-based digital interface protocol. A μModule regulator is a complete DC/DC power supply in a single package, combining the controller, power switches, inductors, and compensation circuitry to simplify design and reduce board space. It belongs to the hierarchy: μModule regulator -> DC/DC converter -> power management IC -> semiconductor. This integration eliminates the need for external inductor selection and loop compensation, significantly reducing design risk and time-to-market. Key features include dual 13A or single 26A output capability, PMBus digital interface for configuration and telemetry, and a wide input voltage range of 4.5V to 26.5V. The device supports output voltages from 0.5V to 5.4V, making it suitable for powering FPGAs, ASICs, and processors. The LTM4676MPY#PBF is the military-grade version, guaranteed to meet performance specifications over the -55°C to 125°C internal operating temperature range, ensuring reliability in harsh environments. Technically, the LTM4676 integrates high-efficiency power stage with digital power system management, allowing real-time monitoring of output voltage, current, and temperature. The PMBus interface enables remote configuration of output voltage, current limits, and sequencing, which is essential for complex multi-rail systems. The device also features fast analog control loops for excellent transient response, and its EEPROM stores configuration data for autonomous startup. Typical applications include high-performance computing, data center servers, telecommunications equipment, and industrial systems where precise voltage regulation and digital management are required. The wide input range and high output current make it ideal for powering FPGAs, GPUs, and network processors. When designing with this device, ensure adequate thermal management due to high power dissipation. The BGA package requires a thermal pad connection to a large copper area for heat spreading. Also, configure the PMBus parameters carefully to match the load requirements and sequencing needs.
LTM4680EY#PBF - Dual 30A or Single 60A µModule Regulator | Analog Devices
The LTM4680EY#PBF is a dual 30A or single 60A step-down µModule (power module) DC/DC regulator from Analog Devices, featuring remote configurability and telemetry-monitoring of power management parameters over PMBus, an open standard I2C-based digital interface protocol. This non-isolated point-of-load (PoL) module integrates the inductor, power switches, DC/DC controller, and supporting components in a compact BGA-144 package, simplifying design and reducing board space. A µModule regulator is a complete power management solution that combines a DC/DC controller, power MOSFETs, inductor, and compensation circuitry into a single surface-mount package. This integration reduces design complexity, improves reliability, and accelerates time-to-market compared to discrete solutions. The LTM4680 belongs to the family of digital power system management modules, which enable real-time monitoring and control of voltage, current, and temperature via PMBus. Key features include dual 30A outputs (or single 60A parallel operation), input voltage range of 4.5V to 16V, and output voltage range of 0.5V to 3.3V per channel. The device supports PMBus communication for configuration and telemetry, with 1% output voltage accuracy and integrated current sharing. The BGA-144 package measures 16mm x 16mm, providing excellent thermal performance with a low-profile design. Technically, the LTM4680 uses a current-mode control architecture with digital loop compensation, enabling stable operation across a wide range of output capacitors. The PMBus interface allows adjustment of output voltage, current limits, and fault thresholds without changing external components. The module includes protection features such as overvoltage, undervoltage, overcurrent, and overtemperature shutdown. Typical applications include high-current FPGA, ASIC, and processor power supplies in networking, data center, and industrial systems. The dual-output configuration is ideal for powering core and I/O rails simultaneously, while the single 60A mode supports high-current loads. The digital management capability is valuable in systems requiring dynamic voltage scaling or precise power sequencing. When designing with the LTM4680, ensure adequate input and output capacitance for stability and transient response. The PMBus interface requires pull-up resistors on the SDA and SCL lines. Thermal management is critical at high currents; use a proper PCB layout with thermal vias to maximize heat dissipation.
LTM4680IY#PBF - Dual 30A or Single 60A µModule Regulator | Analog Devices
The LTM4680IY#PBF is a dual 30A or single 60A step-down µModule (power module) DC/DC regulator from Analog Devices, featuring remote configurability and telemetry-monitoring of power management parameters over PMBus, an open standard I2C-based digital interface protocol. This non-isolated point-of-load (PoL) module integrates the inductor, power MOSFETs, and control circuitry in a compact BGA-144 package, simplifying design and reducing board space. It operates from a 4.5V to 16V input supply and provides two outputs, each adjustable from 0.5V to 3.3V, delivering up to 30A per channel or a combined 60A in parallel mode. A µModule (micro-module) is a complete power management solution that integrates the DC/DC controller, power transistors, inductors, and compensation components into a single package, offering high efficiency and ease of use. The LTM4680 belongs to the family of digital power system management (PSM) modules, which enable real-time monitoring and control of voltage, current, and temperature via PMBus, enhancing system reliability and energy efficiency. Key features include PMBus-compliant digital interface for configuration and telemetry, dual 30A or single 60A output capability, wide input voltage range of 4.5V to 16V, and adjustable output voltage from 0.5V to 3.3V. The module achieves high efficiency, reducing power loss in demanding applications. It also includes programmable switching frequency, phase interleaving, and fault protection features such as overvoltage, overcurrent, and overtemperature protection. Technically, the LTM4680 integrates a high-performance synchronous step-down controller with integrated power MOSFETs and inductors, enabling a compact solution with excellent thermal performance. The BGA-144 package provides a low-inductance interconnect and efficient heat spreading, supporting high current density. The digital interface allows precise voltage margining, sequencing, and monitoring, which is essential for complex multi-rail systems. Typical applications include high-current FPGA, ASIC, and processor power supplies in telecommunications, data center, and industrial equipment, where precise voltage regulation and monitoring are critical. The module's ability to parallel channels for higher current makes it suitable for powering advanced processors and GPUs. When designing with the LTM4680, ensure adequate input and output capacitance to maintain stability and meet transient requirements. The PMBus interface requires careful layout to avoid noise coupling, and thermal management should consider the module's power dissipation at high loads.
LTM4680MPY#PBF - Dual 30A/Single 60A µModule Regulator | Analog Devices
The LTM4680MPY#PBF is a dual 30A or single 60A step-down µModule (power module) DC/DC regulator from Analog Devices, featuring remote configurability and telemetry-monitoring of power management parameters over PMBus, an open standard I2C-based digital interface protocol. This high-performance power module integrates the controller, power MOSFETs, inductors, and supporting components in a compact 16mm × 16mm × 5.01mm BGA package, simplifying design and reducing board space. A µModule regulator is a complete power management solution that integrates the DC/DC controller, power transistors, inductors, and compensation circuitry into a single package, offering high efficiency and ease of use. It belongs to the broader category of power modules, which are essential in power management ICs for converting and regulating voltage in electronic systems. Key features include a wide input voltage range of 4.5V to 16V, dual 30A or single 60A output capability, and an output voltage range of 0.5V to 3.3V. The device supports digital power system management via PMBus, enabling real-time monitoring of voltage, current, and temperature, as well as programmable margining and sequencing. The MP grade ensures operation over the -55°C to 125°C internal temperature range, making it suitable for harsh environments. Technically, the LTM4680 employs a peak current mode architecture with integrated high-performance power stages, achieving efficiencies up to 90%. The PMBus interface allows precise control and telemetry, reducing external component count and improving system reliability. The module is designed for high-current applications such as FPGA, ASIC, and processor power supplies, where tight voltage regulation and fast transient response are critical. Typical applications include telecom and networking equipment, data center servers, and industrial systems requiring high-density power conversion. The LTM4680MPY#PBF is ideal for powering FPGAs, GPUs, and CPUs in these environments, providing clean, stable power rails with minimal external components. When designing with this module, ensure adequate thermal management by providing sufficient copper area and airflow, as the module dissipates significant heat at full load. The PMBus interface should be configured for proper sequencing and monitoring to optimize system performance.
LTM4700EY#PBF - Dual 50A/100A µModule Regulator | Analog Devices
The LTM4700EY#PBF is a dual 50A or single 100A step-down µModule (power module) DC/DC regulator from Analog Devices, featuring remote configurability and telemetry-monitoring of power management parameters over PMBus, an open standard I2C-based digital interface protocol. It integrates fast analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors, and supporting components in a single package, simplifying high-density power supply design. A µModule (micro-module) regulator is a complete DC/DC converter system-in-package that includes the controller, power switches, inductors, and compensation, reducing external component count and design risk. It belongs to the hierarchy: µModule regulator -> power module -> DC/DC converter -> power management IC -> semiconductor. This integration enables compact, high-current point-of-load (PoL) solutions for advanced processors, FPGAs, and ASICs. Key features include dual 50A or single 100A output capability, input voltage range of 4.5V to 16V, and adjustable output voltage from 0.5V to 1.8V per channel. The device supports PMBus for digital power system management, allowing real-time telemetry of voltage, current, and temperature, as well as configuration of output voltage, sequencing, and fault thresholds. It operates over a 0°C to 125°C internal temperature range (E-grade), with -40°C to 125°C assured by design. The LTM4700 integrates high-efficiency power stage with low on-resistance MOSFETs and low-loss inductors, achieving high conversion efficiency in a compact BGA package. The digital interface enables precise voltage accuracy and dynamic load response, while the EEPROM stores configuration settings for autonomous startup. The device includes fault protection features such as overcurrent, overvoltage, and overtemperature monitoring. Typical applications include high-current PoL regulation for FPGAs, ASICs, GPUs, and processors in data centers, networking equipment, and industrial systems. The PMBus interface makes it ideal for systems requiring dynamic voltage scaling, power sequencing, and health monitoring. When designing with the LTM4700, ensure adequate thermal management due to high output currents. The BGA package requires a multi-layer PCB with thermal vias to dissipate heat effectively. Use the PMBus interface to configure and monitor the regulator for optimal performance.