Convertidores DC-DC
Productos (770)
LTM4700IY#PBF - Dual 50A/100A µModule Regulator | Analog Devices
The LTM4700IY#PBF from Analog Devices is a dual 50A or single 100A 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 BGA package, simplifying high-current power supply design. The module operates from a 4.5V to 16V input and provides two outputs, each adjustable from 0.5V to 1.8V, delivering up to 50A per channel or 100A in parallel. It features PMBus (I2C-based) remote configurability and telemetry monitoring of voltage, current, and temperature, enabling precise power management in complex systems. A µModule regulator is a complete power management solution in a single package, combining the DC/DC controller, power stage, inductors, and passives to minimize external components and design risk. It belongs to the hierarchy of power modules, which are part of the broader category of power management ICs. This integration reduces PCB area and simplifies layout, making it ideal for high-density applications. Key features include dual 50A or single 100A output capability, PMBus digital interface for programming and monitoring, and a wide input voltage range of 4.5V to 16V. The module achieves high efficiency through synchronous step-down architecture and supports output voltage tracking and margining. It also includes fault protection, such as overcurrent and overtemperature shutdown, ensuring reliable operation. Technically, the LTM4700 uses a constant-frequency current-mode control architecture, enabling stable operation with minimal external compensation. The PMBus interface allows real-time telemetry of output voltage, current, and temperature, as well as configuration of output voltage, sequencing, and fault thresholds. The module is available in the industrial temperature grade (I-grade), guaranteed over -40°C to 125°C internal operating temperature. Typical applications include high-current FPGA, ASIC, and processor power supplies in networking, data center, and industrial equipment. Its digital power management capabilities make it suitable for systems requiring dynamic voltage scaling, power sequencing, and health monitoring. The module's high efficiency and compact footprint reduce thermal management challenges. When designing with the LTM4700, ensure adequate input and output capacitance and proper thermal management, as the module can dissipate significant power at high currents. Use the LTpowerPlay GUI for configuration and monitoring via the PMBus interface.
LTM4700MPY#PBF - Dual 50A/100A μModule Regulator | Analog Devices
The LTM4700MPY#PBF is a high-performance 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. This module integrates the controller, power MOSFETs, inductors, and supporting components in a compact 16mm x 16mm x 5.01mm BGA package, simplifying power supply design and reducing board space. A μModule regulator is a complete power management solution that combines a DC/DC controller, power transistors, input and output capacitors, and inductors into a single encapsulated package. It belongs to the hierarchy of power modules, which are part of the broader category of power management integrated circuits (PMICs). By integrating all critical components, μModule regulators minimize external component count, reduce design complexity, and accelerate time-to-market for high-current applications. Key features of the LTM4700 include a wide input voltage range of 4.5V to 16V, dual 50A or single 100A output capability, and an output voltage range of 0.5V to 1.8V. The device supports PMBus for digital power system management, enabling real-time telemetry monitoring of voltage, current, and temperature, as well as configuration of output voltage, current limits, and sequencing. The module achieves high efficiency, typically above 90%, and includes overvoltage, overcurrent, and overtemperature protection. Technically, the LTM4700 employs a peak current mode control architecture with internal compensation, ensuring stable operation across a wide range of output capacitors. The digital interface allows precise voltage accuracy of ±0.5% and supports fault logging and margining. The module is designed for high-density computing, networking, and industrial applications where space and thermal management are critical. Typical applications include high-performance FPGA, ASIC, and processor power supplies in data centers, telecom equipment, and industrial automation. The LTM4700's high current density and digital management capabilities make it ideal for powering advanced processors and memory systems. When designing with the LTM4700, ensure adequate thermal management through proper PCB layout and airflow, as the module dissipates significant power at full load. The PMBus interface requires careful attention to I2C addressing and bus capacitance to ensure reliable communication.
LTM8033IY#PBF - 36V, 3A Ultralow Noise EMC µModule | Analog Devices
The Analog Devices LTM8033IY#PBF is a complete electromagnetic-compatible (EMC) 36V, 3A DC/DC µModule (power module) buck regulator integrating the switching controller, power switches, inductor, filters and all support components in a compact 11.25mm × 15mm × 4.32mm BGA-76 surface-mount package. It accepts a wide 3.6V to 36V input range and delivers an adjustable 0.8V to 24V output at up to 3A continuous load current, and is qualified to the industrial -40°C to +125°C internal operating temperature grade. A µModule regulator is a system-in-package (SiP) DC/DC converter that absorbs the entire switching power supply into a single, characterized black box. Compared with a discrete buck regulator, the µModule integrates the power stage magnetics, compensation network and EMI filtering inside the laminate package, so the engineer only needs to add input/output bulk capacitors and feedback resistors. The LTM8033 sits in the broader hierarchy of: DC/DC converter → switching regulator → buck regulator → power management IC → semiconductor. Key features include a selectable switching frequency range of 200 kHz to 2.4 MHz for tuning against system noise harmonics, current-mode control for stable loop behavior, EN55022 Class B radiated-emission compliance with standard filter components, parallel current sharing for outputs above 3 A, programmable soft-start, and a SnPb or RoHS-compliant finish. The internal architecture uses a peak current-mode controller driving synchronous MOSFETs through an integrated inductor, with internal bypass and EMI capacitors already sized for conducted-emission mitigation. Typical applications include point-of-load regulation for industrial 24V bus systems, FPGA/ASIC and µP core or I/O rails, low-noise analog front-end and sensor power, automotive and heavy-equipment 12V/24V supply rails, test and measurement instrumentation, and any noise-sensitive board that needs a clean, low-ripple rail without the radiated EMI typical of conventional buck designs. Design considerations: use a 4.7 µF to 10 µF input capacitor plus a small 0.1 µF HF bypass, set VOUT with a 1% resistor divider, choose RT for the desired switching frequency, and parallel multiple LTM8033s through the SHARE pin for higher load current. Mind the BGA-76 land pattern and provide adequate bottom-side copper for thermal dissipation. This page synthesizes distributor stock and pricing, verified drop-in alternatives in the same BGA-76 footprint, and practical design notes not consolidated in the manufacturer datasheet alone.
LTM8047 - Isolated Flyback uModule DC/DC, 32V In | Analog Devices
The Analog Devices LTM8047 is an isolated flyback uModule (power module) DC/DC converter with a 725VDC isolation rating, operating from a 3.1V to 32V input and delivering an output voltage range of 2.5V to 12V at up to 440mA (as listed for the LTM8047MPY on DigiKey), housed in a compact surface-mount BGA/LGA-style module package. An isolated DC/DC converter is a switching power converter in which the input and output share no galvanic connection; energy is transferred across a transformer, breaking ground loops and providing an isolation barrier. Within the power management hierarchy, the LTM8047 belongs to the family of system-in-package power modules (uModules), which integrate a switching controller, power switches, a transformer, and all support components into a single surface-mount device. Key features include the 725VDC isolation rating (tested at 725VDC for one second in each polarity, per the manufacturer datasheet), a wide 3.1V to 32V input range suitable for unregulated industrial and automotive rails, and full integration of the flyback power stage. Because the transformer is built into the package, designers eliminate the most difficult part of isolated-supply design: magnetics selection, layout, and creepage management. The LTM8047 uses a flyback architecture in which the controller drives integrated power switches and a coupled inductor. Output voltage is set with a small number of external resistors, and a soft-start pin (SS) sources approximately 10uA during startup, per the datasheet, enabling controlled power-up. The device is also usable in inverting and SEPIC configurations per manufacturer documentation. Typical applications include isolated bias supplies for industrial PLCs, isolated sensor and transducer interfaces, isolated communication port power (RS-485/CAN bias rails), and negative or SEPIC rail generation where a single small module replaces a discrete transformer-based design. A key design consideration is thermal: as a fully integrated module, power dissipation depends on VIN/VOUT/frequency setting, so copper area under the package ground pads governs junction temperature. Verify output current derating at your operating point in the datasheet thermal curves. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with price data as of 2026-10-19.
LTM8074IY#PBF - 40V/1.2A Silent Switcher µModule | Analog Devices
The Analog Devices LTM8074IY#PBF is a 40V input, 1.2A continuous (1.75A peak), step-down µModule (power module) regulator integrating the Silent Switcher architecture to minimize EMI emissions while delivering high efficiency at switching frequencies up to 2.2 MHz. Housed in a thermally enhanced, compact over-molded 25-ball BGA package (4mm x 4mm x 1.25mm profile), the LTM8074IY#PBF includes the switching controller, power switches, inductor, and supporting passive components in a single, surface-mountable module that drops onto the bottom side of a PCB for high-density point-of-load regulation. What is a µModule regulator? A µModule (micromodule) regulator is a complete, factory-assembled DC-DC switching power supply packaged as a single surface-mount IC, integrating the controller IC, power inductor, MOSFET switches, and compensation network inside the package. It sits hierarchically between discrete buck regulators and full isolated brick converters in the power-management-IC taxonomy: discrete buck -> µModule regulator -> isolated PoL -> power management IC -> semiconductor. µModules dramatically shorten design time, reduce PCB footprint, and solve the layout-driven noise and thermal issues that plague discrete buck implementations. Key features include a wide 3.2V to 40V input range, an adjustable 0.8V to 12V output, internal feedback loop compensation, programmable soft-start, and an operating junction temperature range of -40°C to +125°C for industrial-grade deployment. The Silent Switcher topology uses split-parallel internal capacitors to cancel the hot-loop di/dt, allowing the part to pass stringent EMI standards (CISPR 22 Class B, CISPR 25) without complex shielding. Synchronizable to an external clock from 200 kHz to 2.2 MHz avoids beat-frequency interference in multi-rail systems. The Silent Switcher 2 architecture uses integrated ceramic capacitors across the internal hot loop to nearly eliminate radiated EMI, enabling use in noise-sensitive environments like automotive ADAS, industrial sensor arrays, and RF front-end bias supplies. Compared with conventional buck ICs at the same input/output range, the LTM8074IY#PBF's monolithic integration delivers a typical efficiency above 90% at 12V-to-5V/0.5A, with internal current mode control providing line and load regulation across the operating envelope. Typical applications include industrial 24V bus point-of-load conversion, automotive body and ADAS sensor rails, factory automation backplanes, general-purpose 5V/3.3V PoL for FPGA, MCU, and ASIC rails, and low-EMI medical instrumentation power. The over-molded body supports the BGA solder joints against mechanical stress, and the dual-bank GND paddle structure provides both low-impedance return paths and a primary thermal dissipation route. When designing with this device, derate output current for ambient temperature above 85°C and provide sufficient PCB copper area beneath the module's GND banks, which carry most of the heat out of the package. The exposed BGA pads must be soldered to inner-plane copper for thermal spreading; a 1oz copper pour of roughly 1 cm² directly below the module typically limits junction temperature rise to about 20°C at full load. Input bulk capacitance placement near the input balls minimizes reflected input ripple. This page synthesizes distributor pricing, drop-in alternatives, BGA thermal design notes, and Silent Switcher EMI mitigation guidance that go beyond what the manufacturer datasheet presents in isolation.
LV14360 - 60V 3A Step-Down Buck Converter | Texas Instruments
The Texas Instruments LV14360 is a 60-V, 3-A step-down regulator with an integrated high-side MOSFET. It operates from a wide input voltage range of 4.3 V to 60 V, making it suitable for industrial and automotive power conditioning from unregulated sources. The device is available in an 8-pin HSOIC package (4.89 mm x 3.9 mm) with an exposed pad for low thermal resistance. A step-down converter, also known as a buck converter, is a DC-DC switching regulator that efficiently reduces a higher input voltage to a lower output voltage. It is a fundamental building block in power management, converting unregulated or higher-voltage supplies into stable, lower-voltage rails for electronic systems. The LV14360 uses constant frequency peak current mode control with sleep mode at light load to achieve high efficiency, reducing power loss and extending battery life. Key features include a quiescent current of 300 uA in sleep mode, an ultra-low 1-uA shutdown current, and an adjustable output voltage down to 0.8 V. The device is internally compensated, which reduces design time and requires fewer external components. It also features cycle-by-cycle current limiting, thermal shutdown, and a power-good output for system monitoring. The LV14360 implements constant frequency peak current mode control, providing fast transient response and stable operation over a wide range of input and output voltages. The integrated high-side MOSFET minimizes external component count and simplifies layout. The device is designed for high light-load efficiency, making it ideal for battery-powered systems that spend significant time in standby or low-load conditions. Typical applications include industrial power supplies, automotive body electronics, battery-powered equipment, and point-of-load regulation. The wide input range allows direct operation from 12-V and 24-V buses, as well as automotive battery voltages during cranking and load-dump conditions. When designing with the LV14360, ensure proper input and output capacitor selection to maintain stability and minimize ripple. The exposed pad should be soldered to a large copper area for effective heat dissipation, especially at high load currents.
MAX15300ETI+ - Auto-Comp Digital PoL Controller, QFN-28 | Maxim Integrated
The Maxim Integrated MAX15300ETI+ is an Auto-Comp digital point-of-load (PoL) controller IC designed for non-isolated DC-DC step-down converter topologies in distributed power architectures. The device integrates a PMBus-compatible digital interface for adaptive voltage positioning, telemetry, and adaptive compensation, and it delivers switching controller functions across an input range suitable for nominal 3.3 V, 5 V, and 12 V intermediate bus converters commonly found in servers, telecom, and embedded computing platforms. A point-of-load controller is a device category that sits between a board-level DC intermediate bus and a load IC (CPU, SoC, FPGA, ASIC) and uses external MOSFETs to deliver a tightly regulated low-voltage, high-current rail. Auto-Comp controllers like the MAX15300 belong to the switched-mode power supply (SMPS) controller family, which in turn falls under the broader power management IC hierarchy. Adaptive digital compensation eliminates the manual loop-tuning step required by traditional analog PWM controllers, reducing engineering time across multiple output voltages on a single board. Key features of the MAX15300ETI+ include programmable output voltage via PMBus commands, automatic loop compensation, current and voltage telemetry for monitoring, fault protection with configurable thresholds, synchronization to an external clock, and a power-good indicator. The controller supports multi-rail sequencing and margin testing through the digital interface, which is essential in systems where downstream rails must come up in a deterministic order. The exposed pad on the QFN package improves thermal conduction from the internal driver stages to the PCB copper pour. The MAX15300ETI+ uses a peak-current-mode control architecture with an internal ADC sampling the output voltage, and adjusts compensation parameters automatically based on the output filter characteristics, switching frequency, and load transients. The digital core can log fault events and report them via the PMBus STATUS registers, simplifying board-level diagnostics during factory test and field operation. Programmable switching frequency supports trade-offs between inductor size, switching loss, and transient response. Typical applications for the MAX15300ETI+ include core and I/O voltage rails for networking ASICs, FPGA and SoC auxiliary rails in industrial embedded systems, server memory and processor point-of-load regulators, and base-station digital signal processing card supplies. The PMBus interface also enables remote firmware updates and adaptive voltage scaling in energy-aware data center designs. When designing with this controller, choose external MOSFETs with adequate SOA margin at the programmed switching frequency, and place the current-sense network as close to the inductor as PCB layout allows to minimize noise pickup on the feedback path. The exposed pad must be soldered to a continuous ground copper pour. This page synthesizes distributor pricing, drop-in alternative candidates, and practical design notes not found in the manufacturer datasheet, supporting faster component selection by power and digital hardware engineers.
MAX15300ETI+T - Auto-Comp Digital PoL Controller | Maxim Integrated
The Maxim Integrated MAX15300ETI+T is an auto-compensating digital Point-of-Load (PoL) controller IC housed in a 28-pin TQFN-EP (5x5 mm) package designed for non-isolated DC-DC step-down converter applications. It supports input voltages from 4.7V to 24V and drives external MOSFETs to deliver output voltages from 0.6V to 5.25V at up to 30A+ depending on external component selection, with PMBus 1.2/1.3-compliant digital telemetry for voltage, current, temperature, and fault status. A digital Point-of-Load controller is a power-management IC that regulates a low-voltage, high-current DC rail directly at the point where the load (CPU, ASIC, FPGA, memory) consumes it, replacing traditional analog PWM controllers. PoL controllers sit one tier below an intermediate bus converter (typically 12V) and one tier above the load device in the distributed power architecture. The 'Auto-Comp' feature refers to the controller's ability to autonomously measure the output filter characteristics and compute optimal PID loop compensation, eliminating the manual design step normally required for buck converters. Key features include adaptive dead-time control, cycle-by-cycle current limiting, pre-bias monotonic startup, and four selectable switching frequencies (600/800/1000/1200 kHz). The internal 8-bit ADC digitizes output voltage, current, and temperature for closed-loop regulation and PMBus reporting, and fault events trigger configurable responses including retry, latch-off, or warning-only behavior. The PMBus interface enables remote margining, sequencing, and real-time telemetry across a 2-wire SMBus-compatible serial bus. Typical applications include powering FPGAs, ASICs, and DSPs from 12V intermediate bus architectures, telecom and networking line cards, server motherboard DC-DC VRM stages, base-station power modules, and any distributed-power PCB where adaptive compensation simplifies design-in. The TQFN-EP package provides a low thermal-resistance path for the controller itself, although most thermal dissipation is in the external MOSFETs it drives. Designers should pair the MAX15300ETI+T with a current-sense element (Rsense or DCR sensing) and follow the manufacturer's inductor and capacitor selection guidelines to achieve the desired ripple and transient response. The PMBus device address is set by an external resistor, allowing multiple controllers on the same bus. Programmable soft-start and output-voltage margining make the device especially attractive for multi-rail systems that require coordinated sequencing.
MAX1631EAI+T - Dual Buck PWM Controller 28-SSOP | Maxim
The Maxim Integrated MAX1631EAI+T (now under Analog Devices) is a dual-output, current-mode, step-down DC-DC switching controller IC for notebook and battery-powered systems. Housed in a 28-pin SSOP package, the device operates over a 4.2V to 30V input range and provides two adjustable outputs (selectable to 3.3V and 5V fixed via preset pins) at up to 96% efficiency, with on-chip MOSFET drivers. The switching frequency is programmable from 200 kHz to 300 kHz, and the duty cycle reaches 99%, allowing low-dropout operation on the high-side rail. What is a step-down DC-DC controller? A step-down (buck) controller is a switch-mode power supply IC that regulates an output voltage lower than the input by rapidly switching an external power MOSFET and storing energy in an external inductor. The MAX1631 family belongs to the hierarchy of voltage regulator -> switching regulator -> step-down controller -> PWM current-mode controller -> power management IC, and is widely used where high efficiency at varying battery voltages is required. Key features include on-board power-up sequencing, power-good signaling with programmable delay, digital soft-start to limit inrush current, secondary winding control for auxiliary outputs, low-dropout (LDO) circuitry, and internal frequency-compensation networks. The MAX1631EAI+T supports dual adjustable outputs that can be preset to 3.3V and 5V, making it well-suited for powering system logic, memory, and I/O rails from a single battery or adapter source. The architecture combines current-mode PWM control with an adaptive idle mode that skips switching cycles at light loads, sustaining high efficiency across the entire load range. Internal drivers can directly drive external N-channel MOSFETs without external gate drivers, simplifying the BOM. Housed in a 28-SSOP package (5.30 mm body width, 0.65 mm pitch), the part dissipates moderate thermal load at typical notebook power levels. Typical applications include notebook computer main supplies (CPU core + I/O), battery-powered portable instruments, point-of-load regulators downstream of an AC adapter, and embedded systems requiring 3.3V/5V dual rails from a single 12V or 19V bus. The on-board power-good and sequencing features target multi-rail architectures where CPU, chipset, and peripheral rails must come up in a defined order. When designing with this device, careful inductor selection and output capacitor ESR are critical for stability. The 28-SSOP package has a higher thermal resistance than QFN equivalents, so copper area on the PCB beneath the exposed pad (or wide traces on the SSOP leads) is recommended for sustained full-load operation at high VIN. A well-designed snubber across the external switching MOSFET reduces ringing and EMI. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single source for selecting, sourcing, and validating the MAX1631EAI+T in new and legacy designs.
MAX17502FATB+T - 60V, 1A Sync Step-Down DC-DC | Maxim/ADI
The Maxim Integrated (Analog Devices) MAX17502FATB+T is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs that delivers up to 1 A of load current from a 4.5 V to 60 V input rail and regulates a fixed 5 V output in a 10-pin TDFN exposed-pad (TDFN-EP) package. Housed in a compact 3 mm x 2 mm TDFN-EP footprint, it operates at a 600 kHz switching frequency and uses peak-current-mode control with internal compensation, eliminating the need for an external compensation network. The device maintains ±1.7% output accuracy over the full -40 °C to +125 °C temperature range. A synchronous buck (step-down) DC-DC converter is a switching regulator that uses actively controlled high-side and low-side MOSFETs to convert a higher DC input voltage into a lower, regulated DC output voltage with significantly higher efficiency than a linear regulator. The MAX17502 belongs to the step-down regulator -> DC-DC converter -> power management IC -> semiconductor hierarchy, and is optimized for harsh industrial and automotive environments where wide input transients are common. Key features include a wide 4.5 V to 60 V input range, integrated 180 mΩ high-side and 120 mΩ low-side MOSFETs, internal loop compensation, programmable soft-start, and a power-good (PGOOD) output for rail sequencing. The fixed 5 V output variant eliminates external feedback resistors, while the adjustable variant covers 0.9 V to 92% of VIN. Shutdown current drops below 1 µA for energy-saving standby modes. The internal architecture combines a peak-current-mode controller with a precision reference and adaptive dead-time control, achieving up to 92% efficiency. The 600 kHz switching node allows the use of small ceramic input and output capacitors while keeping fundamental switching noise outside the AM band, which simplifies EMI filtering. Typical applications include industrial 24 V and 48 V bus systems, point-of-load regulators after a PFC stage, distributed supply rails in factory automation, battery-powered portable instruments, HVAC controllers, and eMobility accessories. Designers choose this part when they need a tiny, fully synchronous 1 A regulator that tolerates automotive load-dump events. When designing with this part, keep the input capacitor loop and the high-side MOSFET loop as short as possible to minimize switching-node ringing, and connect the exposed pad to a continuous ground copper plane to keep junction temperature within the 150 °C limit. For high VIN-to-VOUT ratios, derate output current to stay within the SOA shown in the manufacturer datasheet. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical PCB design notes that go beyond what the manufacturer datasheet alone provides, making component evaluation and sourcing faster for engineers.
MAX17633BATP+T - 36V, 3.5A Synchronous Buck Converter | Analog Devices
The MAX17633BATP+T is a high-efficiency, high-voltage, synchronous step-down DC-DC converter from Analog Devices, part of the Himalaya series. It operates over an input voltage range of 4.5V to 36V and delivers up to 3.5A of output current. The device integrates MOSFETs and is available in a 20-WFQFN exposed pad package, making it suitable for space-constrained industrial and telecom power supplies. A synchronous buck converter is a type of DC-DC switching regulator that steps down a higher input voltage to a lower output voltage with high efficiency. It uses two MOSFETs (high-side and low-side) to alternately connect the inductor to the input and ground, minimizing conduction losses compared to asynchronous designs. This topology is essential in power management systems where efficiency and thermal performance are critical, such as in base stations, distributed power architectures, and point-of-load (POL) converters. Key features of the MAX17633BATP+T include an adjustable output voltage from 0.9V, a MODE/SYNC pin for selecting PWM, PFM, or DCM control schemes, adjustable input undervoltage lockout (UVLO), adjustable soft-start, open-drain RESET output, and external clock synchronization. The switching frequency is programmable from 380kHz to 2.45MHz, allowing designers to optimize efficiency versus component size. The device also offers high efficiency across a wide load range, reducing power dissipation and enabling cooler operation. The MAX17633BATP+T is designed for robust performance in harsh environments. It includes cycle-by-cycle current limiting, thermal shutdown, and short-circuit protection. The adjustable soft-start prevents inrush current during startup, and the open-drain RESET output provides a power-good signal for system sequencing. The device is available in a 20-WFQFN package with an exposed pad for enhanced thermal performance, and it is RoHS compliant. Typical applications include base-station power supplies, distributed supply regulation, general-purpose point-of-load converters, high-voltage single-board systems, industrial control power supplies, and wall transformer regulation. Its wide input range and high output current make it ideal for 12V and 24V bus systems, as well as for powering FPGAs, ASICs, and processors in industrial and telecom equipment. When designing with the MAX17633BATP+T, ensure proper PCB layout with adequate input and output capacitance, and place the inductor and feedback resistors close to the IC to minimize parasitic inductance. The exposed pad should be soldered to a large copper area for effective heat dissipation. The MODE/SYNC pin allows synchronization to an external clock to reduce EMI in multi-rail systems.
MAX17634CATP+ - 36V, 4.25A Sync Buck DC-DC Converter | ADI
The Analog Devices (formerly Maxim Integrated) MAX17634CATP+ is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs that delivers up to 4.25 A of output current from a 4.5 V to 36 V input rail, housed in a 20-pin TQFN (4x4 mm) exposed-pad package. The MAX17634C variant provides an adjustable output voltage from 0.9 V to 32.4 V, while the MAX17634A and MAX17634B variants offer factory-set 3.3 V and 5 V outputs respectively. What is a synchronous step-down (buck) DC-DC converter? A buck converter is a switched-mode power supply topology that steps a higher DC input voltage down to a lower regulated DC output voltage. The synchronous variant replaces the conventional rectifier diode with a low-side MOSFET to reduce conduction losses and achieve peak efficiencies typically above 90 percent. Buck converters sit within the broader hierarchy: switching regulator -> DC-DC converter -> power management IC -> semiconductor. They are preferred over linear regulators whenever large VIN-VOUT differentials or high load currents would otherwise waste significant power as heat. The MAX17634CATP+ features peak-current-mode control for stable loop compensation and supports forced PWM, PFM, and discontinuous-conduction-mode operation, allowing efficiency optimization across full-load and light-load conditions. A 2.2 MHz switching frequency (with low minimum on-time) enables small external LC filter components and compact PCB layouts. Programmable soft-start, adjustable current limit, and thermal shutdown are integrated for robust fault handling. Architecturally, the device integrates high-side and low-side N-channel MOSFETs along with the PWM controller, feedback network, and reference into a single die. The exposed pad (EP) on the TQFN-20 package provides a low thermal resistance path (~30 C/W typical), critical for continuous 4.25 A operation. Typical applications include industrial 24 V bus distributed power rails, point-of-load (POL) regulators for FPGAs/ASICs/Microcontrollers, automotive infotainment and body-electronics subsystems, battery-powered portable equipment, and general-purpose 12 V/24 V industrial automation supplies. When designing with this part, choose input/output ceramic capacitors rated for the expected ripple current and place them as close as possible to the IN and LX pins. Use 4-layer PCB construction with a continuous ground plane tied to the exposed pad to achieve the rated thermal performance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the MAX17634CATP+ not found in the manufacturer datasheet alone.
MAX20075ATCB/V+ - 36V 0.6A Mini Buck Converter | Analog Devices
The Analog Devices MAX20075ATCB/V+ is a 36V, 600mA synchronous step-down buck converter with integrated high-side and low-side switches, packaged in a 12-pin TDFN (3mm x 3mm) with exposed pad. The device accepts input voltages from 3.5V to 36V and delivers a programmable/fixed output (1V reference programmable to 3.3V, 3V, or adjustable up to 10V) at up to 0.6A, with ±2% output accuracy across the 6V to 18V normal operating input range. A buck (step-down) converter is a switched-mode DC-DC converter that lowers a higher input voltage to a lower regulated output voltage with high efficiency by alternately storing energy in an inductor and releasing it to the load. Compared to linear regulators, buck converters dissipate far less power at large VIN-VOUT deltas, making them essential in automotive and industrial power trees where battery or 12V/24V bus rails must be reduced efficiently to logic-level voltages. Key features include 20ns minimum on-time (enabling 36V-to-low-VOUT step-down without duty-cycle limits), 5µA quiescent current (suitable for always-on automotive subsystems), programmable switching frequency, internal MOSFETs, and AEC-Q100 qualification for automotive applications. Spread-spectrum and forced-PWM options further reduce EMI in radio-sensitive environments. The MAX20075 uses a peak-current-mode control architecture with internal compensation, requiring only an inductor, input/output capacitors, and feedback resistors for a complete solution. The integrated high-side/low-side FETs and synchronous rectification minimize external component count, enabling a sub-50mm x 100mm solution footprint - among the smallest in the 36V-input mini-buck category. Typical applications include automotive infotainment, ADAS sensor power, instrument clusters, point-of-load regulation after a pre-regulator, and any 12V/24V industrial bus node that needs a compact, efficient step-down to a sub-5V rail. When designing with this device, choose an inductor rated for peak currents above the saturation limit (typically 1.0-1.2A peak for 0.6A continuous output) and place the input capacitor within 2mm of the IC to minimize switching-node ringing. This page synthesizes distributor pricing, AEC-Q100-qualified drop-in alternatives, and practical design considerations not always aggregated on the manufacturer datasheet.
MAX20076ATCB - 36V, 1.2A Synchronous Buck Converter | Analog Devices
The Analog Devices MAX20076ATCB is a 36 V input, 1.2 A synchronous step-down buck converter with integrated high-side and low-side switches, supplied in a compact 12-pin 3 mm x 3 mm TDFN package with an exposed pad. It supports a 3.5 V to 36 V input range and provides accurate ±2% output regulation over the normal 6 V to 18 V input range. Its 20 ns minimum on-time supports high step-down ratios and compact inductors. A synchronous buck converter is a DC-DC voltage-regulator class that reduces a higher input voltage to a lower, regulated output. Unlike a linear regulator, its internal high-side and low-side MOSFET switches transfer energy through an inductor during alternating charge and discharge cycles. This switching action improves conversion efficiency, especially when the output voltage is substantially below the input voltage. The MAX20076 belongs to the synchronous buck-converter family within power-management ICs. Key features include integrated high-side and low-side switches, programmable output voltage, 1.2 A output-current capability, operation from 3.5 V to 36 V, and a 2 MHz switching option identified in distributor data. The 3 mm x 3 mm TDFN package supports space-constrained designs, while the exposed pad provides a thermal and electrical connection to the PCB. The converter also uses very few external components according to the manufacturer datasheet. The 20 ns minimum on-time is technically significant because it permits a high ratio between input and output voltages while retaining regulation. This helps designers use a smaller inductor than would be practical with a conventional buck controller that has a longer minimum pulse width. The integrated synchronous switches reduce external power-stage components and can improve conversion efficiency compared with a diode-based asynchronous implementation. Typical applications include automotive electronics, industrial systems, portable equipment, and distributed power rails that require compact step-down conversion from a wide input range. For an automotive design, engineers should still verify the exact temperature grade, automotive qualification status, and electrical limits in the ordering information and manufacturer datasheet before production release. The principal design consideration is component selection and PCB layout. Inductor saturation current, switching-node layout, input-capacitor placement, and exposed-pad thermal performance directly affect reliability and electromagnetic compatibility. Designers should follow the manufacturer’s recommended application circuit and layout guidance rather than estimating these values from generic buck-converter examples. This product page consolidates verified manufacturer specifications, distributor availability references, package information, and practical design guidance. It distinguishes published facts from parameters that require confirmation from the full datasheet, helping engineers evaluate this wide-input, compact converter efficiently.
MAX20076ATCB/V+ - 36V 1.2A 2MHz Mini Buck Converter | ADI
The Analog Devices (formerly Maxim Integrated) MAX20076ATCB/V+ is a 36V, 2MHz, 1.2A synchronous mini buck converter with integrated high-side and low-side MOSFET switches, housed in a 3mm x 3mm 12-pin TDFN exposed-pad package. It accepts 3.5V to 36V input and delivers a programmable (or factory-fixed) output voltage between 1V and 10V with ±2% accuracy across the 6V to 18V automotive nominal input range. The 20ns minimum on-time capability supports large step-down ratios at the 2.1MHz switching frequency, enabling a small inductor and minimal external BOM. A buck converter (step-down switching regulator) is a power management IC that uses an inductor, capacitor, and switching transistors to convert a higher DC input voltage into a lower DC output voltage with high efficiency. Synchronous bucks integrate a low-side FET to replace the external Schottky diode, reducing conduction loss. Mini-buck parts target compact, thermally-constrained boards by minimizing external component count and PCB area, fitting the role of "high-voltage point-of-load regulator" within the broader power management IC hierarchy. Key differentiating features of the MAX20076ATCB/V+ include 3.5V to 36V wide input tolerance for load-dump survival, 1.2A continuous output current, 2.1MHz fixed switching frequency (above the AM band for EMI-sensitive automotive designs), factory-trimmed or resistor-set output options, and AEC-Q100 qualification under the "/V+" suffix. The exposed thermal pad and TDFN-12 footprint keep junction-to-ambient thermal resistance low enough for 1.2A delivery in automotive temperature ranges. Architecturally, the device uses peak-current-mode control with internal compensation, a high-side and low-side N-channel MOSFET pair, and a precision feedback chain. Spread-spectrum variants exist in the same family for EMI mitigation. Compared to linear regulators, this synchronous buck offers substantially higher efficiency at large VIN/VOUT deltas, allowing smaller thermal solutions in space-constrained modules. Typical applications include automotive infotainment and cluster power rails, ADAS camera and sensor modules, body electronics (body controllers, lighting), industrial 24V/28V bus point-of-load conversion, and any high-voltage automotive sub-system needing a small, qualified buck. The fixed-output factory variants further simplify design when no output-voltage adjustment is needed. When designing with this part, choose a low-DCR shielded inductor sized for the 2.1MHz switching frequency and verify the input capacitor handles the worst-case RMS ripple. The exposed pad must be soldered to a sufficiently large copper pour to keep junction temperature within the automotive-grade range under full load. This page synthesizes distributor pricing, drop-in same-family variants (MAX20075, MAX25276, fixed-output versions) and practical design notes not consolidated in the manufacturer datasheet, to help engineers select and source the right variant quickly.
MAX20790GFC+T - 12V Smart Power Stage | Analog Devices
The Analog Devices MAX20790GFC+T is a one-phase 12V smart power-stage IC built for high-density multiphase synchronous buck voltage regulators, with integrated current and temperature reporting through PMBus. It is supplied in the 12-FC2QFN package identified by distributor listings as a 3.25 mm by 7.4 mm package. A smart power stage is an integrated power-conversion building block that combines the switching functions required by a synchronous buck phase with monitoring, reporting, and fault-protection capabilities. In system terminology, the MAX20790 is a power-management IC, a DC-DC converter component, and a programmable power-stage device. Multiple MAX20790 devices can be paired with a compatible Maxim controller to create a compact multiphase regulator for demanding computing, communications, and server power systems. The verified product information identifies individual phase-current and temperature reporting, fault protection, and support for compact synchronous-buck implementations. These features allow the controller and system management firmware to observe operating conditions without treating the power stage as an entirely opaque module. The reported data is particularly useful for telemetry, fault diagnosis, load balancing, and thermal supervision in multiphase architectures. The MAX20790 is intended to work with Maxim controllers rather than as a stand-alone regulator. The external controller establishes the desired output voltage and coordinates the power stages, while the MAX20790 supplies the phase power path and communication functions. This division of responsibility allows designers to scale phase count for output-current requirements and rail capacity. Typical applications include 12V server and communications rails, high-current processor power systems, accelerator boards, networking equipment, and industrial computing platforms. System designers should follow the manufacturer datasheet for the exact pinout, electrical limits, PMBus implementation, compensation, current-sense behavior, fault thresholds, and thermal layout recommendations. For PCB implementation, place the device according to the package-specific land pattern and provide the required input, output, and decoupling connections with short, low-impedance paths. High-current switching loops should be kept compact to reduce parasitic inductance and EMI. Validate the complete converter with the intended controller, inductor, capacitors, sensing network, load range, and fault-management firmware. This page combines the verified manufacturer and distributor identification of the MAX20790GFC+T with application guidance and engineering checks. It does not infer unreported electrical limits or claim a substitute part without verified pin and parameter matching.
MAX77827CEFD+ - 1.6A Buck-Boost Converter, 6μA IQ, 5.5V | ADI
The Analog Devices (formerly Maxim Integrated) MAX77827CEFD+ is a high-efficiency synchronous buck-boost switching regulator targeting one-cell Li-ion applications with an industry-low 6 μA typical quiescent current. It accepts input voltages from 1.8 V to 5.5 V and delivers an adjustable output of 2.3 V to 5.3 V at up to 1.6 A, all from a compact 14-pin Power-UFQFN (FC2QFN) package measuring roughly 2.5 mm × 2.5 mm. A buck-boost (step-up/step-down) regulator is a switching DC-DC converter topology that maintains a regulated output voltage regardless of whether the input voltage is above, equal to, or below the output voltage. In the broader power-management hierarchy, it sits under switching regulators, then DC-DC converters, then power management ICs, and ultimately semiconductors. Compared with a pure buck or pure boost, the buck-boost topology eliminates dead zones at VIN = VOUT, which is critical when a Li-ion battery (3.0 V–4.2 V) discharges through the 3.3 V or 3.8 V system rail. Key features include dual switch current limits of 1.8 A and 3.1 A for flexible inductor sizing, an adjustable output down to 2.3 V, and a wide 1.8 V–5.5 V input range that tolerates USB-OTG and 5 V regulated sources. The Power-UFQFN package integrates the IC and exposes a thermal pad that keeps junction temperature rise manageable at full load, while the 6 μA IQ dramatically extends standby time in always-on IoT wearables, hearables, and sensor hubs. Technically, the device uses a four-switch H-bridge architecture that seamlessly transitions between buck, boost, and buck-boost modes. Pulse-width modulation at MHz-class switching frequencies enables small ceramic capacitors and inductors. Internal MOSFETs reduce external BOM to one inductor, input/output caps, and feedback resistors, while the output can be set with two external resistors or factory-trimmed for fixed-voltage versions. Typical applications include wearables and fitness bands powered by Li-ion or Li-poly cells, IoT sensor nodes with wide-input energy-harvesting sources, hearables and Bluetooth audio headsets, smartwatches, low-power wireless cameras, and any single-cell Li-ion product needing 3.3 V or 3.8 V rails with months of standby life. When designing with the MAX77827CEFD+, select a low-DCR shielded inductor rated for at least the 3.1 A peak current, place input/output ceramic capacitors close to the IC pins, and respect the exposed pad layout for thermal dissipation. Pre-load output selection via the FB resistor network allows trade-off between BOM count and output flexibility. This page synthesizes distributor pricing, drop-in compatible variants, and application design notes not found in the manufacturer datasheet alone.
MAX77839AEWL+T - 5.5V 6µA IQ Buck-Boost | Analog Devices
The Analog Devices MAX77839AEWL+T is a low-IQ buck-boost voltage regulator IC with a 1.8V to 5.5V input range, 2.3V to 5.3V adjustable output, and 6µA quiescent current, housed in a 15-WLP package measuring 2.07mm by 1.51mm. It targets one-cell Li-ion and other battery chemistries that can discharge down to 1.8V. A buck-boost converter belongs to the switching-regulator hierarchy: unlike a linear regulator, it can regulate the output above or below its input. The MAX77839 therefore supports a stable rail when a battery voltage crosses the required output level. Its compact package and low quiescent current are particularly useful in wearable, mobile, and other battery-powered equipment. Key verified features include 4.4A/3.6A switching-current ratings, a single-resistor adjustable output from 2.3V to 5.3V, and a configurable GPIO pin that can select forced-PWM control input or power-good open-drain output. Maxim's buck-boost controller technology provides high efficiency and seamless transition between buck and boost operation. The topology dynamically regulates in either direction as the battery changes state. This differs from a buck-only converter, which cannot maintain an output above the input, and a boost-only converter, which cannot reduce an excessive input voltage. The available switching-current ratings also require careful inductor, capacitor, thermal, and PCB validation for the selected output voltage and load. Typical applications include low-power wearables, smartphone accessories, one-cell portable equipment, Bluetooth-connected devices, and compact embedded systems. The MAX77839 evaluation kit can support hardware evaluation, with different MAX77839 variants selected according to whether POK functionality is required. Designers should verify the complete WLP land pattern and pin assignments against the manufacturer datasheet before layout. Inductor selection, compensation, capacitor sizing, current rating, and layout must be derived for the required load because the supplied verified data does not provide values for those implementation details. This page consolidates the verified manufacturer and distributor information, separates documented performance from missing engineering data, and records why no unverified drop-in substitute is recommended. That evidence-first approach helps engineers evaluate the MAX77839 without treating generic regulators as pin-compatible replacements.
MAXM17514ALI+ - 4A 2.4-5.5V Step-Down Power Module | Maxim
The Maxim MAXM17514ALI+ is a fixed-frequency step-down DC-DC switching regulator power module in a thermally-efficient system-in-package (SiP) that operates from a 2.4V to 5.5V input supply and delivers up to 4A of output current across a programmable 0.75V to 3.6V output range. The module integrates a switch-mode power-supply controller, dual n-channel MOSFET power switches, a fully shielded inductor, and compensation components into a single surface-mount package, eliminating the discrete buck converter design effort for low-voltage, high-current rails. A step-down (buck) DC-DC converter is a switching voltage regulator that efficiently reduces a higher DC input voltage to a lower DC output voltage by rapidly switching an inductor and rectifying the resulting waveform. Compared with linear regulators, buck converters achieve substantially higher efficiency (often 90-95%) by cycling a transistor between saturation and cutoff instead of dissipating excess voltage as heat. Power modules such as the MAXM17514ALI+ extend this architecture by co-packaging the controller, MOSFETs, inductor, and feedback compensation, simplifying PCB layout and shortening time to market in space-constrained designs. Key specifications include a 2.4V to 5.5V input voltage window, 0.75V to 3.6V programmable output voltage, 4A continuous output current, integrated dual nMOSFET switches, internal shielded inductor, internal compensation network, and a thermally-enhanced SiP package that simplifies thermal management. The device is well suited for point-of-load (PoL) applications where a low-voltage, high-current rail must be derived locally from a 3.3V or 5V system bus with minimal PCB area and minimal external component count. The MAXM17514ALI+ uses a peak current-mode control architecture with internal compensation, which simplifies stability analysis and removes the need to design a Type-III compensation network. The fully shielded inductor reduces radiated EMI, an important consideration for noise-sensitive analog and RF subsystems powered from the same board. Typical applications include FPGA core and I/O rails, ASIC point-of-load supplies, industrial 5V bus distributed power, networking switch ASICs, telecom board rails, and portable/embedded system 3.3V-to-1.xV conversion. The wide input range makes it compatible with both 3.3V and 5V system buses without external front-end regulation. A key design consideration is input and output capacitor selection: use ceramic capacitors with low ESR placed as close as possible to the IN and OUT pins to minimize ripple and maintain regulation loop bandwidth. Ensure the upstream 5V or 3.3V source can supply the full 4A load transient. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, enabling faster component selection and supply chain decisions.
MAXM17630AME+T - 1A, 36V Himalaya uSLIC Step-Down Module | ADI
The Analog Devices (formerly Maxim Integrated) MAXM17630AME+T is a Himalaya-series, non-isolated synchronous step-down DC-DC power module with integrated controller, MOSFETs, compensation components and inductor, delivering 1A continuous output current at 3.3V fixed from a 4.5V to 36V input rail. Housed in a 16-pin EMGA (3 mm x 3 mm) uSLIC surface-mount package, it operates at a switching frequency of up to 1.5 MHz and targets point-of-load (PoL) applications where PCB area is constrained. A step-down DC-DC module (or buck converter module) is a complete switching power supply building block that integrates the controller, power switches, inductor and feedback compensation inside a single surface-mount package. Compared with discrete buck designs, a uSLIC module reduces external component count to essentially one input capacitor, one output capacitor and two small resistors, while delivering factory-tuned loop stability. As a member of the broader category of switching voltage regulators and DC-DC converters, it sits above linear regulators in efficiency for high input-to-output voltage deltas, converting excess voltage as switching losses rather than heat. Key features include 4.5V to 36V input range, 3.3V fixed output (AME variant), 1A continuous load current, peak-current-mode control with internal compensation, and PFM/PWM auto-skipping at light loads for high efficiency. The internal MOSFETs and synchronous rectification eliminate the external Schottky diode. Hiccup-mode overcurrent protection, thermal shutdown, and an enable/UVLO pin provide fault handling for industrial and consumer rails. Efficiency peaks above 88% at 12Vin/3.3Vout/0.5A and remains above 80% across the 4.5V to 36V input range. Typical applications include industrial 24V/12V point-of-load regulation, factory automation sensors, HVAC control boards, distributed 5V/3.3V rails, and space-constrained embedded systems requiring minimal external component count. The 3 mm x 3 mm footprint and integrated inductor make it especially attractive when a discrete buck solution would consume more than 4x the PCB area. When designing with the MAXM17630AME+T, place the input ceramic capacitor as close as possible to the PGND and IN pins to minimize switching noise injection; a 1 µF to 4.7 µF X7R ceramic is typically sufficient. The exposed pad must be soldered to a copper pour of at least 25 mm² to keep the junction temperature below 125 °C at full 1A load and 36V input. Avoid routing analog signal traces directly beneath the module to prevent radiated switching noise coupling. This page synthesizes distributor pricing, drop-in alternatives drawn from the MAXM17630/MAXM17631/MAXM17632 family, application notes, and practical PCB layout guidance that goes beyond the manufacturer datasheet alone.
MAXM17634AMG+ - 36V 2A 5V uSLIC Step-Down Module | Analog
The Analog Devices MAXM17634AMG+ is an integrated 2A, 5V synchronous step-down DC-DC power module with a 4.5V to 36V input range, packaged in the MAXM17634AMG+ module format. It belongs to the Himalaya uSLIC family, which integrates the controller, MOSFETs, compensation components, and inductor into one compact module. The verified distributor listing specifies one 5V output, 2A output current, and 4.5V to 36V input range. Its integrated architecture reduces external power-conversion component count while retaining the efficiency and thermal advantages of synchronous buck conversion. The module is intended for industrial, communications, robotics, embedded computing, and distributed-power applications requiring a regulated 5V rail from a wide input bus. A DC-DC converter is a power-management IC category that changes one direct-current voltage level into another. A synchronous step-down converter uses high-side and low-side switching transistors, rather than a simple linear pass element, to transfer energy efficiently from a higher input voltage to a lower regulated output. MAXM17634AMG+ is a module-level implementation because its magnetic and compensation elements are integrated with the switching silicon. The MAXM17634AMG+ family provides a wide 4.5V to 36V operating input range, supporting both conventional 5V, 12V, and 24V systems and higher transient-capable industrial buses. According to the Analog Devices manufacturer datasheet, MAXM17633, MAXM17634, and MAXM17635 employ peak-current-mode control. Programmable soft-start reduces input inrush current. For the MAXM17634 variant, the verified distributor data identifies a fixed 5V output and 2A capability. The integrated Himalaya module approach can simplify PCB layout by reducing the number of externally placed power-stage components. It is particularly useful when designers want repeatable power-conversion behavior without tuning an external inductor and compensation network. The tradeoff is lower design flexibility than a discrete synchronous buck implementation, because the integrated inductor and compensation determine much of the module's electrical and thermal behavior. Typical uses include industrial control systems, 24V bus-powered equipment, embedded single-board computers, robotics platforms, communications equipment, and compact industrial sensors. The 5V rail can feed processors, sensor interfaces, USB-powered peripherals, or other loads, subject to the complete power budget and thermal verification. For battery applications, the module's input range and current rating must be checked against the source voltage, discharge profile, and required output headroom. Designers should follow the manufacturer datasheet for input and output capacitor selection, PCB layout, exposed-pad or thermal-pad treatment, startup behavior, and current derating. Keep the power loop compact, provide adequate copper for heat dissipation, and verify both continuous-load temperature rise and transient response. Do not assume that the 2A rating applies without accounting for VIN, VOUT, efficiency, ambient temperature, and board thermal resistance. This page combines verified distributor information, the manufacturer datasheet, package-level data, and design guidance for efficient sourcing and first-board bring-up. MAXM17634AMG+ is best suited to compact 5V power rails where integrated magnetics, wide input voltage, synchronous efficiency, and soft-start control outweigh the flexibility of a discrete converter. For exact capacitor values, pin details, switching frequency, efficiency curves, and approved layout geometry, consult the official MAXM17633/MAXM17634/MAXM17635 datasheet and Analog Devices product page.
MBCM270F450M270A00 - 270W 230-330V to 45V BCM Bus Converter | Vicor
The Vicor MBCM270F450M270A00 is a high-efficiency (>96.0%) Sine Amplitude Converter (SAC) BCM bus converter module that operates from a 230V to 330V primary bus and delivers an isolated 38.3V to 55.0V secondary voltage at up to 270W (6A) of output power in a VI Chip surface-mount package. It is part of Vicor's MIL-COTS BCM family and is engineered to provide an isolated, fixed-ratio unregulated bus voltage that feeds downstream Point-of-Load (PoL) converters in high-voltage distributed power architectures. A BCM bus converter is a fixed-ratio isolated DC-DC converter that uses a SAC topology to step down (or step up) a high-voltage bus to an intermediate, isolated distribution voltage with extremely high efficiency and power density (>919 W/in3). In the power system hierarchy, BCMs sit between a front-end AC-DC or HV DC-DC source and downstream regulators (PoL converters such as Vicor's PRM/VTM or ZVS buck regulators). The fixed K factor (K=1/5 for this 270V-in / 45V-out part) means output voltage tracks input voltage by a precise ratio, eliminating the need for a closed-loop control loop on the BCM itself. Key features include >96.0% peak efficiency, >919 W/in3 power density, integrated input-side enable/disable control, an input-side referenced temperature monitor signal, and built-in protection features. The VI Chip package is compatible with standard pick-and-place and surface-mount assembly processes, reducing system power footprint by more than 40% compared with discrete converter designs. The fixed-ratio SAC topology produces a clean, low-noise secondary output because it transfers energy as a sinusoidal current waveform rather than through a switched-inductor PWM stage. Typical applications include HV-to-LV isolated bus distribution in industrial automation, 270V/280V aerospace and military power systems, MIL-COTS telecom equipment, and front-end power for downstream PoL converters. The MBCM270F450M270A00's high efficiency and power density make it well-suited for size- and weight-constrained applications such as UAV power distribution, ground-vehicle electronics, and shipboard power systems. The 230-330V input range covers the nominal 270V and 280V MIL-STD-704 and DO-160 aircraft buses as well as 300V nominal industrial DC buses. When designing with this device, the BCM output is unregulated, so downstream regulation is required for any load that requires a precise voltage. Place input bulk capacitance close to the BCM input pins to handle the sinusoidal input current ripple, and ensure the secondary-side capacitance meets Vicor's recommended minimum to filter the SAC output. The enable pin is referenced to the input side, so an isolated gate driver or digital isolator is required when controlling enable from a low-voltage controller on the secondary side. This page synthesizes distributor stock and pricing, MIL-COTS-compatible variants, and design notes for HV distributed power architectures - context not found in the standalone datasheet.
MC33063AD - 1.5A Buck/Boost/Inverting DC-DC Converter | Texas Instruments
The Texas Instruments MC33063AD is a monolithic switching regulator IC containing all primary functions required for building simple DC-DC converters in buck, boost, and inverting topologies. Housed in an 8-pin SOIC (D) package with 3V to 40V input voltage range, the MC33063AD integrates a temperature-compensated 1.25V reference, a comparator, a duty-cycle-tunable oscillator up to 100 kHz, an active current-limiting PWM controller, a driver, and a high-current 1.5A Darlington output switch. It is specified over the -40C to +85C industrial operating temperature range. A switching regulator is a power management IC that converts one DC voltage to another by repeatedly switching energy through an inductor, then filtering with capacitors. The MC33063AD belongs to the SMPS controller family (switched-mode power supply) -> DC-DC converter -> voltage regulator -> power management IC -> semiconductor. Compared to linear regulators, switching converters like the MC33063AD achieve 70-95% efficiency even at large input-to-output voltage deltas, making them ideal when thermal dissipation must be minimized or when the input voltage is much higher than the output. Key features include a 1.5A peak switch current rating, an adjustable output voltage down to 1.25V, internal current limiting via a single external resistor, and an external resistor-programmable oscillator frequency from approximately 100 Hz to 100 kHz. The 8-SOIC package provides standard surface-mount manufacturability and is footprint-compatible with the MC34063A (commercial 0-70C) and MC33063ADG (onsemi second source). Architecturally, the device uses a bipolar Darlington output switch, a transconductance error amplifier referenced to the internal 1.25V bandgap, and a flip-flop synchronized to the on-chip oscillator. This classic 1970s architecture remains popular because the design requires only a handful of external parts (inductor, capacitor, diode, sense resistor, feedback divider) and provides predictable behavior across a wide input range. Typical applications include cost-sensitive step-down converters for 12V/24V industrial buses, boost converters for battery-powered systems needing 5V or higher rails, and negative-voltage inverters for op-amp and analog signal-chain supplies. The internal switch and current limit also make it suitable for LED drivers and simple motor speed controllers operating from single-cell Li-ion or multi-cell lead-acid sources. When designing with the MC33063AD, ensure the inductor saturation current exceeds the internal current-limit threshold, and verify that the catch diode reverse voltage rating exceeds the maximum input supply. PCB layout should keep the switch-current loop (pin 1, inductor, catch diode) compact to minimize switching noise. This page synthesizes distributor pricing, drop-in alternatives from TI and onsemi, and practical design notes not consolidated in the manufacturer datasheet.
MC33063ADG4 - 1.5A Buck/Boost/Inverting Switching Regulator | TI
The Texas Instruments MC33063ADG4 is a monolithic DC-DC switching regulator controller IC rated for 1.5 A peak switch current, supporting buck, boost, and inverting topologies in an 8-pin SOIC package. It integrates a temperature-compensated 1.25 V reference, a duty-cycle-controlled oscillator (up to 100 kHz), a comparator, an active current-limit circuit, a driver, and a high-current output switch on a single die. The wide 3 V to 40 V input range and adjustable 1.25 V to 40 V output make it a versatile single-chip solution for non-isolated point-of-load conversion. A switching regulator is a power-conversion IC that uses an energy-storage element (inductor or transformer) and a switching transistor to transfer energy from input to output at high efficiency, unlike a linear regulator which dissipates the VIN-VOUT differential as heat. The MC33063 family belongs to the SMPS (Switched-Mode Power Supply) controller hierarchy: switching regulator -> DC-DC converter -> power management IC. Within that hierarchy, the MC33063 occupies the 'all-in-one controller + internal switch' tier that lets engineers build a complete converter with a handful of external passive components and one Schottky rectifier. Key features include a 2% internal reference, 100 kHz maximum oscillator frequency, short-circuit protection via the current-sense comparator, and a guaranteed 1.5 A output switch. The exposed thermal pad (DAP) on the SOIC-8 package lowers thermal resistance versus a standard SOIC-8, allowing continuous operation near the 1.5 A switch limit at moderate ambient temperatures. The same silicon die is offered across the MC33063 (industrial -40C to +85C), MC34063 (commercial 0C to +70C), and MC33063A (extended voltage tolerance) families, giving designers direct drop-in migration paths. The architecture is built around a current-mode control loop: the internal comparator monitors the output voltage via a resistor divider, the oscillator sets the switching period, and the on-time is modulated to keep VOUT in regulation. The integrated Darlington output switch drops about 1.5 V at full load, so for 5 V outputs from a 12 V rail, efficiency reaches roughly 80 percent. Compared with newer TI WEBENCH-targeted controllers, the MC33063 is a low-cost, well-documented legacy part that remains in service due to its simplicity, broad input range, and second-source availability. Typical applications include non-isolated point-of-load converters in industrial controls, 24 V to 5 V auxiliary rails in factory automation, negative bias supplies for op-amps and LCDs, battery chargers with current limiting, and distributed 12 V buss regulators in telecom and automotive subsystems. Its 40 V input tolerance also suits automotive load-dump-protected rails. When designing with this part, select the timing capacitor CT to set the oscillator near 30-50 kHz for typical buck or boost designs; lower frequencies improve efficiency but require larger inductors. Place the catch diode and inductor close to the switch pin to minimize parasitic inductance, and use a low-ESR output capacitor to limit ripple. The current-sense resistor RS determines peak switch current and therefore the converter's load capability. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in a single manufacturer document.