Conversores DC-DC
Produtos (764)
BD9B304QWZ-E2 - 3A Sync Buck DC/DC, 2.7-5.5V Input | ROHM
The ROHM BD9B304QWZ-E2 is a synchronous step-down (buck) DC/DC converter IC with built-in low on-resistance power MOSFETs, housed in an 8-pin XFDFN exposed-pad (UMMP008AZ) package. It accepts an input voltage range of 2.7V to 5.5V and delivers up to 3.0A continuous output current with an adjustable output voltage from 0.8V up to 0.8 x VIN, set by an external resistor divider. A buck (step-down) DC/DC converter is a switch-mode power supply topology that efficiently converts a higher DC input voltage to a lower DC output voltage by rapidly switching an inductor-capacitor filter network. Buck converters sit within the broader hierarchy of voltage regulators -> DC-DC converters -> power management ICs -> semiconductors, and are preferred over linear regulators whenever (VIN - VOUT) x IOUT would create excessive heat dissipation. The synchronous topology replaces the traditional Schottky rectifier with a second MOSFET to reduce conduction loss. Key features include a 1.0 MHz / 2.0 MHz selectable switching frequency (set by an external resistor), built-in 40 mOhm high-side and low-side N-channel MOSFETs, constant on-time (COT) control for fast transient response, internal soft-start, and over-current / thermal shutdown protection. The selectable frequency allows the designer to trade efficiency against inductor size. The COT architecture produces a near-ripple-free output with a small output capacitor and eliminates the compensation network typical of voltage-mode or current-mode PWM parts. High-side and low-side RDSon of 40 mOhm each keep full-load efficiency in the mid-90% range at 5 V to 3.3 V conversion, and the 1 MHz / 2 MHz switching options push the fundamental above the AM band for EMI-sensitive consumer designs. Typical applications include point-of-load (POL) rails for FPGAs, ASICs, and SoCs, USB Type-C / PD auxiliary supplies, portable battery-powered devices running from a single-cell Li-ion (2.7V-4.2V) or 5V USB rail, solid-state drive (SSD) power management, and HDMI / DisplayPort interface power. The exposed thermal pad of the XFDFN-8 package ties directly to a small ground copper pour for heat extraction. When designing with the BD9B304QWZ-E2, pay attention to inductor selection - a 1.0 uH to 2.2 uH shielded power inductor is typical for 1 MHz operation. Keep the input/output ceramic capacitors (typically 22 uF X5R or X7R) within 2 mm of the IC pins to minimize parasitic loop inductance that could cause switching-node ringing. This page synthesizes distributor pricing, parametric drop-in alternatives in the same XFDFN-8 footprint, and practical design notes not found in the manufacturer datasheet alone.
BD9F500QUZ-E2 - 36V, 5A Synchronous Buck DC/DC Converter | ROHM
The ROHM Semiconductor BD9F500QUZ-E2 is a synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs, rated for 4.5 V to 36 V input, 0.6 V to ~VIN adjustable output, and 5 A continuous load current, packaged in a 16-pin XFQFN (exposed pad). It uses ROHM's Nano Pulse Control™ constant-on-time (COT) architecture and integrates Light Load Mode for improved efficiency at low current. A buck (step-down) DC/DC converter is a switched-mode power supply topology that uses an inductor, output capacitor, and a control loop to reduce a higher DC input voltage to a lower regulated DC output voltage. ROHM's buck converters sit within the broader switching regulator family alongside boost, buck-boost, and SEPIC converters, all of which are sub-categories of switched-mode power conversion inside the power management IC hierarchy. Synchronous designs replace the external Schottky rectifier with a low-RDS(on) MOSFET to improve efficiency, especially at high load currents. The BD9F500QUZ-E2 features an adjustable output down to 0.6 V, integrated high-side and low-side MOSFETs, fast transient response from the COT control loop, Light Load Mode for light-load efficiency, and built-in protection functions such as over-current protection (OCP), under-voltage lockout (UVLO), thermal shutdown (TSD), and over-voltage protection (OVP). According to the manufacturer datasheet, the device operates from -40 °C to +85 °C (or +125 °C junction maximum) and is targeted at industrial, consumer, and 24 V bus distributed-power applications. The constant-on-time architecture delivers fast load-step response and a small external component count compared to traditional voltage-mode or current-mode PWM controllers. Combined with the 36 V maximum input rating, the BD9F500QUZ-E2 is positioned for industrial 24 V rails, factory automation, and distributed-power architectures where a compact, high-efficiency, 5 A point-of-load converter is required. Typical applications include 24 V industrial PLC power rails, SSD/NAS auxiliary supplies, FPGA core and I/O voltage rails, USB-PD source converters, and step-down conversion for 12 V automotive accessory subsystems. In multi-rail designs it can be paired with a higher-current master converter (e.g., a 8 A or 10 A ROHM BD9F800MUX-class part) plus an LDO for low-noise analog rails. When designing with this part, place the input ceramic bypass capacitor as close as possible to VIN and PGND, and use a low-impedance ground pour with sufficient thermal vias under the exposed pad to dissipate up to ~3 W of losses at full 5 A load. Ensure the inductor ripple current is within the data sheet's recommendation to avoid tripping OCP at the current-sense threshold during transient load steps. This page synthesizes distributor pricing, drop-in pin-compatible alternatives (same-brand first, then cross-brand), and practical PCB/thermal design notes that go beyond the manufacturer datasheet.
CSD967201-Q1 - 4V to 20V, 60A Smart Power Stage | TI
The Texas Instruments CSD967201-Q1 is an automotive synchronous-buck smart power stage rated for a 4V to 20V input range and 60A output in a 38-pin WQFN-FCRLF (VDK) package. It integrates a driver IC and power MOSFETs in one Pb-free monolithic design, combining the switching elements and their control circuitry in a high-density power-conversion solution. The device is designed for high-power, high-density synchronous buck converters and is compatible with the TPS64300-Q1 VRS-11 controller and other standard VRS-11 controllers. According to the Texas Instruments product page, the part also provides accurate current detection and temperature detection to simplify system design and improve measurement accuracy. A smart power stage is an integrated DC power-conversion device combining MOSFET switching elements, gate drivers, and monitoring or protection functions. It belongs to the synchronous-buck-converter power-management hierarchy, where a controller commands the power stage and the integrated MOSFETs switch energy between the input supply and output inductor. Compared with discrete high-current MOSFET arrangements, a monolithic stage can reduce board area and simplify layout, while its integrated protection and sensing functions support robust converter design. The CSD967201-Q1 provides vehicle-compatible protection for demanding power systems. The supplied manufacturer information identifies cycle-by-cycle overcurrent and negative overcurrent limiting, overtemperature shutdown, high-side FET short-circuit protection, and undervoltage-lockout monitoring for VCC, VIN, and BOOT. These functions address fault conditions that can arise from overloads, wiring faults, supply transients, or switching-node failures. Accurate current and temperature detection further helps the controller observe operating conditions without requiring the same level of discrete sensing hardware. The monolithic integration is central to its electrical performance. Driver circuitry and high-side and low-side power MOSFETs are packaged together to execute the switching function of the converter. This is especially useful where available board area is constrained and current capability must remain high. Because the power stage is designed around VRS-11 control, system-level design must verify controller compatibility, switching settings, gate-drive behavior, and protection thresholds against the manufacturer datasheet before production release. Typical uses include automotive computing, vehicle electrical loads, infotainment systems, and other high-current, low-voltage DC rails powered by an automotive input. A 4V to 20V input range supports systems designed around nominal 12V vehicle power, including transient-heavy environments, while the 60A rating supports high-power loads. Actual usable output current depends on controller settings, inductor selection, switching frequency, PCB copper area, thermal conditions, and the protection limits of the complete converter. Layout is a primary design consideration because this is a 60A-class switching power stage. Power-loop inductance, unequal current sharing, excessive via or trace resistance, and inadequate copper thermal capacity can increase losses or impose voltage stress even when the controller operates correctly. The manufacturer datasheet and application guidance should be followed for package-land geometry, component placement, high-current copper, thermal vias, input and output capacitors, and protection implementation. This page consolidates verified manufacturer facts, source links, technical uncertainty markers, application guidance, and the result of a targeted replacement search. It distinguishes confirmed CSD967201-Q1 characteristics from unavailable pricing, complete pin-level data, and any unverified second-source alternatives rather than filling those gaps with assumptions.
DCM2322T50T2660T60 - 60W 9-50V to 24V Isolated DC-DC | Vicor
The Vicor DCM2322T50T2660T60 is an isolated, regulated DC-DC converter module delivering up to 60 W output power with 2.50 A continuous output current, housed in the Vicor ChiP (Converter housed in Package) through-hole module format. It accepts a wide 9-50 Vdc input range and provides a fixed 24 V nominal SELV (Safety Extra Low Voltage) output, making it well suited to industrial 24 V bus systems. The device achieves a peak efficiency of 88.7% and delivers an industry-leading 266 W/in³ power density thanks to its ZVS (Zero-Voltage Switching) high-frequency architecture. An isolated, regulated DC-DC converter is a power module that converts one DC voltage to another while providing galvanic isolation between input and output. Galvanic isolation breaks the electrical conduction path, allowing grounds of different sections of a system to float independently and to break ground loops. Within the broader taxonomy, the DCM2322 sits in the isolated DC-DC converter family, which is itself a subclass of DC-DC converters, falling under the power management umbrella of integrated electronic components. These modules pair a fixed input-side bus with downstream point-of-load rails in industrial, railway, and aerospace systems. Key features include 3000 Vdc isolation, full output regulation, integrated input and output filtering on select pins, and a T-grade internal operating temperature range of -40°C to +125°C. The DCM2322 platform uses a ZVS buck-boost topology combined with Vicor's proprietary ChiP packaging, achieving low-noise switching and high power density in a small footprint. The ChiP module exposes -IN and +IN power pins plus -OUT and +OUT power pins, with the negative pins serving as the reference for control signals and Kelvin connection. Typical applications include industrial 24 V bus power systems, factory automation controllers, railway rolling-stock auxiliary power, and distributed 24 V power for embedded computing. The wide 9-50 Vdc input also covers 12 V, 24 V, and 36/48 V battery systems, allowing one module to span multiple bus architectures. The fixed 24 V nominal output is convenient for powering sensors, PLC I/O, and downstream point-of-load converters. When designing with the DCM2322T50T2660T60, observe Kelvin connection practices on the -IN pin to minimize voltage drop across the control reference. Ensure that heat sinking or forced-air cooling accounts for worst-case dissipation at minimum input voltage where efficiency drops. The module is SELV-compliant when properly integrated, but the input side retains a higher voltage potential and requires appropriate fusing. This page synthesizes distributor pricing, parametric proximity-rated alternatives, and PCB Kelvin-connection design notes that complement - rather than duplicate - the manufacturer datasheet.
DCM28AP120T320A50 - 320W 28V to 12V Isolated DC-DC Module | Vicor
The Vicor DCM28AP120T320A50 is a 320 W isolated, regulated DC-DC converter module from Vicor's DCM® (Direct Conversion Module) VI Chip® family, designed for high-density point-of-load power conversion in industrial and defense applications. The device accepts a 16 V to 50 V input range (28 V nominal) and delivers a regulated 12 V output at up to 26.67 A continuous current. This specific variant uses through-hole packaging and is the T (top-side cooled) form factor of the MDCM28AP120M320A50 base part, with the A50 suffix denoting a -20 °C to +125 °C operating range. What is a DCM DC-DC converter? A Direct Conversion Module is a brick-format isolated DC-DC converter that eliminates intermediate conversion stages by directly stepping down or stepping up a DC bus voltage at high switching frequencies (MHz-range ZVS topology). DCM modules sit in the power-management hierarchy under point-of-load converters (POLs) and bus converters, offering higher power density and lower noise than traditional isolated brick converters built from discrete transformers and PWM controllers. Vicor's DCM line specifically targets 48 V, 28 V, and 24 V distributed-bus architectures common in MIL-COTS, industrial automation, and railway electronics. Key features include 26.67 A continuous output current, 320 W peak power delivery, 2250 VDC isolation between input and output, parallel operation capability for higher-power arrays, and a typical efficiency above 92 % at nominal line. The module operates from -20 °C to +125 °C case temperature and offers analog control and trim functions for in-system tuning. Optional features in the broader DCM3623 family include constant-voltage / constant-current analog interfaces. Architecturally, the DCM uses Vicor's proprietary Sine Amplitude Converter (SAC™) topology, which employs a zero-voltage-switching resonant front end feeding a high-frequency isolation transformer followed by a synchronous-rectifier secondary. This topology yields a clean trapezoidal output waveform with minimal common-mode noise and robust regulation across wide load and line conditions. Typical applications include 28 V MIL-STD-1275 vehicle power conditioning, 24 V industrial-bus point-of-load regulation, battery-backed 36 V e-mobility systems, FPGA/ASIC core and aux-rail power, and front-end power for downstream Vicor PRM™ and VTM™ stages in a Factorized Power Architecture (FPA). Designers typically use the DCM as a bus converter or as a stand-alone POL in space-constrained embedded systems. When designing with this device, ensure adequate thermal management through the top-side cold plate or PCB copper; the high power density demands either a heatsink or sufficient airflow. Observe the recommended input fusing and inrush-limiting circuitry in the datasheet typical application section, since the Sine Amplitude Converter topology can source high peak inrush if the upstream bus capacitance is large. This page synthesizes distributor pricing, drop-in cross-package equivalents, and practical design notes not found in the standalone manufacturer datasheet.
DCM3623T50M13C2M00 - 320W Isolated DC-DC Converter | Vicor
The Vicor DCM3623T50M13C2M00 is an isolated, regulated DC-DC converter module delivering 12V output at up to 26.67A (320W) from a 16V to 50V input range, packaged in the Vicor 3623 ChiP through-hole form factor. It operates with military-grade temperature grade -55°C to +125°C and uses Vicor's high-frequency zero-voltage-switching (ZVS) architecture to achieve high efficiency and power density. An isolated DC-DC converter is a power supply module that uses a transformer to provide galvanic isolation between input and output while stepping up or stepping down the voltage. Within the broader power management hierarchy, isolated converters sit between discrete switching regulators and full AC-DC power supplies; they are essential where the load requires noise isolation, voltage level shifting, or safety-grade separation between high-voltage input rails and low-voltage digital or analog circuitry. Key features include 12V fixed-output rating, 320W maximum output power, 26.67A maximum load current, 16V-50V wide input range, and built-in analog control interface per the M-grade option. The ChiP package integrates magnetics, switching elements, and control into a low-profile surface/through-hole assembly. High efficiency (typically ~93% at full load) reduces thermal stress and eliminates external heatsinks in many systems. The DCM3623T50M13C2M00 uses Vicor's proprietary ZVS topology operating at MHz-class switching frequencies with planar magnetics embedded inside the ChiP. This architecture enables the wide 16V-50V input range while keeping the BOM minimal - one module replaces dozens of discrete components normally required for an isolated brick-style supply. The MIL-grade temperature rating makes this specific part suitable for harsh-environment applications including aerospace, military C4ISR, and heavy industrial systems. Typical applications include 28V bus distribution in military vehicles, avionics intermediate bus conversion, industrial 24V/36V/48V motor drive isolation, and telecom/datacenter intermediate bus architectures. The wide input range supports operation across nominal 24V, 28V, and 48V supply rails without reconfiguration. When designing with this part, ensure adequate thermal copper area on the host PCB since the ChiP's pins serve as both electrical and thermal conduits. The analog control interface allows trim, enable, and remote sense; designers should preserve the enable pull-up and decouple the trim pin according to the reference design. For higher power or parallel operation, Vicor's proprietary current-share loop can combine multiple DCM units. This page synthesizes distributor pricing, MIL-grade variants, and same-footprint alternatives not found in summary listings, enabling engineers to compare military/industrial/automotive temperature grades side-by-side.
DCM3623T75X1380M00 - 80W 12V 9-75Vin Isolated DCM | Vicor
The Vicor DCM3623T75X1380M00 is an isolated, regulated DC-DC converter module from the DCM® (DCM ChiP) family, delivering 80W of output power at 12V/6.7A from a wide 9V to 75V input rail in a 9-pin ChiP through-hole package (Case 3623). Engineered for high-efficiency conversion in demanding distributed-power architectures, it operates with Vicor's proprietary Sine Amplitude Converter (SAC) topology and zero-voltage switching (ZVS), achieving high efficiency and low noise. The DCM family is widely used in industrial, aerospace/defense, communications, and railway applications where isolated, regulated point-of-load conversion is required. Background: An isolated DC-DC converter module is a packaged power conversion building block that provides galvanic isolation between its input and output while stepping a bus voltage up or down to a regulated rail. Within the power management IC taxonomy, isolated modules sit alongside non-isolated POL converters, LDOs, and switching regulators as the primary means of delivering conditioned power to downstream subsystems. The Vicor DCM line specifically targets high-voltage (28V, 36V, 48V, 60V, 72V) nominal bus systems used in MIL-COTS, industrial, and transportation designs. Key features include a wide 9V-75V input range that accepts transient excursions up to 100V, a tightly regulated 12V output with ±1% setpoint accuracy, 2250 VDC isolation, parallel operation capability with current sharing, and an M-grade (-55°C to +100°C) operating temperature range. Built-in protection features include over-current, over-voltage, over-temperature, and input under-voltage lockout (UVLO). The 9-pin ChiP package has an industry-standard 36.83 mm x 25.91 mm x 7.21 mm footprint with through-hole pins for robust PCB mounting and excellent thermal dissipation. Technically, the DCM3623T75X1380M00 leverages Vicor's high-density ChiP packaging to deliver 80W in a fraction of the volume of conventional brick converters. Its SAC topology minimizes switching losses and EMI by operating the MOSFETs with soft-switching transitions, making it suitable for noise-sensitive analog and RF downstream systems. Internal planar magnetics and high-frequency ZVS operation (>1 MHz) shrink the magnetic footprint while preserving high efficiency across the input voltage range. Typical applications include 48V telecommunications infrastructure, industrial 24V/36V/48V battery-powered equipment, MIL-COTS aerospace and defense electronics, railway rolling stock and trackside power systems, and high-end test & measurement front ends. The wide input range makes it ideal for systems where the nominal bus can droop or surge significantly, while the isolated output provides safety isolation for downstream circuits. When designing with this part, pay close attention to input bulk capacitance (typically required at the upstream bus to handle inrush), thermal management of the ChiP case, and PCB routing to minimize loop inductance. Vicor recommends their proprietary Filtered Accessories for conducted EMI compliance and surge protection modules for transient input protection beyond the device's built-in limits. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers a single point of comparison across multiple sources.
DCM3623T75X1380T00 - 80W Isolated DC-DC Converter | Vicor
The Vicor DCM3623T75X1380T00 is an isolated, regulated DC-DC converter module from the DCM® 3623 family that delivers 80 W of output power with 12.0 V nominal output and 6.7 A continuous load current, packaged in a 9-pin R-XDMA-T9 through-hole ChiP (Chip-in-Package) measuring 22.8 mm x 38.72 mm. The module accepts a wide 9 V to 75 V input range, achieves a peak efficiency of 90.4%, and provides 2250 Vdc galvanic isolation, making it suitable for Safety Extra Low Voltage (SELV) system designs and high-density power architectures at 220 W/in³ power density. A DCM (DC-DC Converter Module) is an isolated, regulated switching power converter that combines a Zero-Voltage Switching (ZVS) topology with planar magnetic structures to deliver high efficiency in a small footprint. Within the broader power management hierarchy, DCM modules sit between discrete switching regulators (lower density, lower isolation) and full custom power supplies, serving as the building block for distributed power architectures in industrial, aerospace, and defense applications where isolation, density, and time-to-market all matter. Key differentiating features of the DCM3623T75X1380T00 include its ZVS high-frequency switching architecture, which minimizes switching losses and EMI, and its wide 9-75 Vdc input range that supports 12 V, 24 V, 28 V, 36 V, and 48 V nominal system buses without derating. The 2250 Vdc isolation rating meets the reinforced insulation requirements of industrial IEC 60950-style end equipment. Planar magnetic construction eliminates wire-wound transformer variability and supports automated SMT-style processing despite the through-hole pin format. The internal architecture uses a ZVS primary-side controller with a proprietary Sine Amplitude Converter (SAC) topology, secondary-side rectification, and a closed-loop feedback path that regulates the 12 V output across line and load. The wide-input range is achieved through Vicor's Factorized Power Architecture (FPA), in which the upstream PI controller can pre-regulate bulk DC and the downstream DCM provides point-of-load isolation and voltage transformation. Typical applications include industrial 24 V and 48 V bus distributed power, railway and rail-transit auxiliary power, defense and aerospace ground vehicles, test and measurement instrumentation, and any SELV-isolated load requiring 12 V at up to 6.7 A from a wide input bus. A key design consideration is thermal management: at 90.4% peak efficiency the module dissipates roughly 8.6 W at full 80 W output, so adequate chassis airflow or cold-plate contact is required for continuous operation at 125°C junction temperature. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical thermal notes not found in the manufacturer datasheet, giving engineers a single reference for sourcing, replacement, and design-in decisions.
DCM3717S60D13K0TN1 - 1000W 40-60Vin 12.2Vout Non-isolated DCM | Vicor
The Vicor DCM3717S60D13K0TN1 is a 1000 W non-isolated, regulated DC-DC converter module from Vicor's DCM® family, operating from a semi-regulated 40 V to 60 V input and producing a factory-trimmed 12.2 V output (trimmable 10.0 V to 12.5 V) at up to 82 A continuous in a surface-mount SM-ChiP package. Peak efficiency is rated at 96.5% with a switching frequency above 1 MHz, leveraging Vicor's proprietary Zero-Voltage Switching (ZVS) buck-boost regulator stage followed by a Sine Amplitude Converter (SAC) topology for low-noise point-of-load delivery. Up to 1100 W (90.2 A) is available as a transient peak. A non-isolated Point-of-Load (PoL) DC-DC converter module is a packaged switching power stage placed adjacent to a load ASIC or processor to convert a higher intermediate bus voltage into a tightly-regulated lower rail with high efficiency and minimal PCB footprint. PoL modules differ from isolated converters in that they share a common ground reference between input and output, eliminating the bulky transformer isolation barrier. Within the broader power hierarchy, this places them between upstream Intermediate Bus Converters (IBCs) and the final LDO/pol regulation stage on a processor or SoC's core, memory, or I/O rails, where fast transient response and current-density per square centimeter matter most. Key feature highlights include a wide 40 V to 60 V input range aligned with 48 V nominal telecom and datacom buses, a trimmable output range of 10.0 V to 12.5 V, up to 1000 W continuous / 1100 W transient operation, and a >1 MHz switching frequency that allows output filtering with small ceramic capacitors. PMBus®-compatible digital telemetry provides real-time monitoring of input voltage, output voltage, output current, and temperature, while SM-ChiP packaging enables flexible thermal management with low top- and bottom-side thermal impedance. Architecturally, the converter combines a ZVS buck-boost stage to step down the 48 V bus with a Sine Amplitude Converter that produces a low-noise, high-bandwidth regulated output. This two-stage approach avoids the duty-cycle limitations of single-stage buck converters at high step-down ratios and enables the >1 MHz switching frequency without sacrificing efficiency. Typical applications include 48 V-to-12 V point-of-load conversion in datacom servers and AI accelerator cards, telecom equipment power distribution, industrial 48 V bus regulation, high-performance computing and FPGA power rails, and battery-backed 48 V systems where high efficiency and density are required. When designing with this device, mount it on a thermally adequate PCB footprint and observe the SM-ChiP handling instructions to maximize top- and bottom-side heat extraction. This page synthesizes distributor pricing, same-family drop-in alternatives within the DCM® line, and practical design notes not found in the manufacturer datasheet.
DCM3717S60D13K0TN1 - 1000W 40-60Vin 12.2Vout SM-ChiP DCM | Vicor
The Vicor DCM3717S60D13K0TN1 is a 1000 W non-isolated, regulated DC-DC converter module operating from a 40 V to 60 V semi-regulated input rail and producing a trimmable 10.0 V to 12.5 V point-of-load output at up to 82 A continuous (1100 W / 90.2 A transient peak) in the surface-mount SM-ChiP 3717 package. The DCM (Direct Conversion Module) family is a category of high-density, regulated point-of-load converters from Vicor that combine a zero-voltage-switching (ZVS) buck-boost regulator stage with a downstream Sine Amplitude Converter (SAC) to produce a fixed-ratio, low-noise output that the system trims to a precise DC set point. The DCM3717S60D13K0TN1 delivers 96.5% peak efficiency using a proprietary ZVS buck-boost front end followed by Vicor's Sine Amplitude Converter post-regulation stage, giving the converter its characteristic soft-switching, low-EMI behavior at >1 MHz switching frequency. The SAC secondary eliminates the bulky output L-C filter required by conventional buck converters, which is what lets the module collapse 1 kW of conversion into a low-profile SM-ChiP surface-mount footprint roughly the size of a thumbnail. Key specifications include: 40-60 VDC input range, 10.0-12.5 V trimmable output (factory-set to 12.2 V), 82 A continuous output current (1000 W), 90.2 A / 1100 W transient peak capability, 96.5% peak efficiency, >1 MHz switching frequency, and PMBus-compatible digital telemetry for monitoring voltage, current, temperature, and fault status. The SM-ChiP package is rated for -40C to +125C operation and supports board-mount reflow. Typical applications include 48 V datacenter intermediate-bus conversion (e.g., stepping 48 V down to 12 V for downstream POL regulators or GPUs), industrial 48 V robotics and AGV traction rails, MIL-COTS tactical mobile power systems, and LED driver / high-power stage lighting. Parallel operation with active current sharing enables multi-kW systems from identical DCM modules. The DCM3717 platform uses Vicor's proprietary high-density ChiP packaging, so thermal management is critical: the package requires a cold-plate or substantial PCB copper thermal via array to extract up to 36 W of full-load loss at 96.5% efficiency. Designers should follow Vicor SM-ChiP layout and cooling guidelines in the datasheet to achieve rated output. This page synthesizes distributor pricing, parametric variants from the same DCM3717 family, paralleling notes, and practical thermal design guidance not bundled into the manufacturer datasheet.
DCM3717S60E13G5TN1 - 750W 40-60V to 12.2V DCM Module | Vicor
The Vicor DCM3717S60E13G5TN1 is a 750 W non-isolated, regulated DC-DC converter module that operates from a semi-regulated 40 V to 60 V input and produces a regulated point-of-load output of 12.2 V at up to 61.5 A continuous load current. Housed in the surface-mount SM-ChiP package, the module leverages Vicor's patented Zero-Voltage Switching (ZVS) buck-boost regulator stage followed by a Sine Amplitude Converter (SAC) post-regulator topology to deliver high-efficiency, high-density power conversion. A DCM (DC-DC Converter Module) is a complete, surface-mounted point-of-load conversion subsystem that integrates the magnetics, control loop, and power switches within a single thermally-conductive package, positioned in the power management IC hierarchy above discrete POL regulators and below front-end isolated bricks. These modules are typically used to translate a higher distribution bus (in this case, a 48 V nominal telecom/datacom rail) down to a lower intermediate rail, often a 12 V bus, that downstream VRMs further step down to processor-core voltages. Key electrical specifications include a 96.5% peak efficiency, 750 W continuous output power, 900 W peak power capability, and a wide 10.0 V to 12.5 V programmable output voltage range. Operating input spans 40 V to 60 V (semi-regulated 48 V rail), and the unit is rated for a chassis-mount baseplate temperature range of -40 °C to +125 °C. The SM-ChiP surface-mount package supports reflow soldering and provides a low-impedance thermal path to the PCB. Architecturally, the ZVS buck-boost stage produces a safety-grounded switching node, and the SAC output stage guarantees low output impedance and tight load-step regulation across the full dynamic range. Combined, this topology achieves the high efficiency and low noise floor required for 48 V distribution architectures. Typical applications include 48 V direct-to-PoL conversion in AI servers and high-performance computing, telecom and datacom equipment bridging 48 V to 12 V rails, industrial 48 V battery systems, and high-density computing accelerators that need a regulated 12 V intermediate bus from a 48 V backbone. Designers should pair the DCM3717 with an upstream 48 V hold-up capacitor and ensure the PCB layout follows Vicor's recommended thermal-via pattern under the SM-ChiP baseplate to dissipate up to 30 W of losses at full load. This page aggregates verified distributor pricing, same-brand drop-in variants from the Vicor DCM family, and practical design notes drawn from the Vicor datasheet to help engineers pick, place, and procure the right module.
DCM3717S60E13G5TN1 - 750W 40-60V to 12.2V Non-Iso PoL | Vicor
The Vicor DCM3717S60E13G5TN1 is a non-isolated, regulated point-of-load DC-DC converter module delivering 750 W continuous (900 W peak) from a semi-regulated 40 V to 60 V input to a 10.0 V to 12.5 V regulated output (12.2 V nominal at 61.5 A), housed in the surface-mount SM-ChiP (ChiP) package. It uses Vicor's patented ZVS (zero-voltage switching) buck-boost regulator stage followed by a Sine Amplitude Converter (SAC) secondary stage, reaching peak efficiency of 96.5% to 97.0%. A non-isolated point-of-load (PoL) DC-DC converter module is a high-density power component that steps a higher intermediate bus voltage down to a low, well-regulated rail that sits immediately adjacent to a load IC such as a CPU, GPU, ASIC, or FPGA. The DCM family sits in the power-management hierarchy: DC-DC converter -> non-isolated PoL module -> voltage regulator -> power management IC -> semiconductor. By eliminating the isolation barrier and integrating magnetics, switching FETs, and control within a single SM-ChiP package, these modules deliver far higher power density than discrete buck designs while simplifying EMI, thermal, and layout work for the system engineer. Key features include 750 W continuous / 900 W transient peak output power, 61.5 A continuous load current, 96.5% to 97.0% peak efficiency, and parallelable operation for higher power. The SM-ChiP surface-mount package enables top-side cooling and reflow soldering while exposing a low thermal resistance path for cold-plate or heatsink attachment in dense compute, networking, and industrial platforms. Architecturally, the ZVS buck-boost front stage produces a regulated bus that feeds the SAC secondary stage; the SAC operates as a soft-switched resonant topology that delivers clean, low-noise output without the large output LC filters required by conventional buck converters. The result is fast transient response and tight regulation suitable for powering low-voltage, high-current silicon with minimal bulk capacitance. Typical applications include 48 V direct-to-point-of-load conversion for AI accelerator cards, GPU and CPU core rails in hyperscale servers, telecom and networking switch fabrics, industrial 48 V bus systems, and battery or renewable-energy intermediate bus architectures. Compared with discrete multi-phase buck regulators, the DCM3717S60E13G5TN1 removes PCB area, switching losses, and magnetics design effort from the engineer's plate. When designing with this part, ensure adequate cold-plate or top-side thermal management - the SM-ChiP package is intended for surface-mount solder attachment plus an external thermal spreader. Confirm that input bulk capacitance meets the datasheet's low-impedance requirement at the 40 V to 60 V rail, and observe polarity marking before reflow. This page consolidates Vicor datasheet parameters, real-time distributor pricing, drop-in DCM-family alternatives, and practical design notes not assembled in any single source, giving engineers a one-stop reference for the DCM3717S60E13G5TN1.
DCM3717S60E14G5TN0 - 750W 48V to 12V Non-Isolated DCM | Vicor
The Vicor DCM3717S60E14G5TN0 is a non-isolated, regulated DC-DC converter module in the SM-ChiP (Surface-Mount ChiP) package, operating from a semi-regulated 40V to 60V input to produce a regulated point-of-load output of 10.0V to 13.5V at up to 62.5A continuous (750W) or 75A transient peak (900W). It uses Vicor's patented ZVS buck-boost first stage followed by a ZVS/ZCS Sine Amplitude Converter (SAC) current-multiplier second stage, achieving 97.0% peak efficiency. A DC-DC converter module is a complete, encapsulated power subsystem that converts one DC voltage to another at high efficiency. The DCM3717 belongs to Vicor's DCM family of non-isolated point-of-load (PoL) modules; non-isolated means there is no galvanic barrier between input and output, which trades isolation safety for higher power density, lower cost, and simpler PCB layout. Within the broader taxonomy, DCM sits as a brick-level DC-DC converter module → DC-DC converter → power management IC → semiconductor. These modules are commonly deployed at the 48V bus to point-of-load boundary in modern computing, communications, and industrial architectures. Key features include a wide 40V to 60V input range matched to nominal 48V rails, a wide 10.0V to 13.5V programmable output range, 97.0% peak efficiency, switching frequency above 1 MHz, integrated PMBus-compatible telemetry for voltage, current, and temperature monitoring, and a thermally-adept SM-ChiP package. The two-stage ZVS architecture eliminates high-voltage switching losses while the SAC stage provides current multiplication with zero-current switching, yielding low EMI and high step-down ratios. Typical applications include 48V direct-to-PoL conversion in data center and AI server racks, industrial 48V bus distributed-power architectures, high-current 12V intermediate bus generation for downstream point-of-load converters, and telecom equipment using 48V backplanes. PMBus telemetry enables real-time monitoring for predictive maintenance in smart power systems. When designing with the DCM3717, account for the input and output bulk-capacitance requirements defined in the datasheet to manage ripple and hold-up, and provide adequate PCB copper area or thermal interface material because the SM-ChiP package is designed for both through-hole and surface mounting with top-side thermal attachment. The high switching frequency minimizes external LC filter size, but input fusing and TVS protection at the 60V maximum input remain required for robust 48V bus operation. This page synthesizes distributor pricing, datasheet specifications, drop-in alternatives and practical design notes not found in the standalone manufacturer datasheet.
DCM3717S60E14G5TN0 - 750W 48V-to-PoL DC-DC Module | Vicor
The Vicor DCM3717S60E14G5TN0 is a non-isolated, regulated DC-DC converter module in the SM-ChiP package that delivers up to 750 W (62.5 A at 12 V nominal) from a semi-regulated 40-60 V input bus to a point-of-load output range of 10.0-13.5 V, with a typical trim point of 12.2 V. The module integrates Vicor's patented zero-voltage switching (ZVS) buck-boost regulator stage followed by a Sine Amplitude Converter (SACTM) output stage for low-noise, high-bandwidth regulation. A DC-DC converter module is a self-contained, surface-mountable power conversion brick that combines the power stage, magnetics, control loop, and protection circuitry in a single package, allowing designers to drop a high-performance regulated rail onto a board without laying out a switching converter themselves. The DCM family sits within Vicor's broader ChiP (Converter housed in Packaging) platform hierarchy: DC-DC converter module -> isolated/non-isolated POL module -> SM-ChiP -> surface-mount power component. These modules are widely used to bridge a 48 V distribution bus directly to a lower-voltage point-of-load, replacing intermediate bus converters and multi-stage discrete designs. Key features of the DCM3717S60E14G5TN0 include 750 W continuous output power, 96% typical peak efficiency, >1 MHz effective switching frequency, and parallelable operation for higher power levels. The non-isolated topology trades galvanic isolation for high power density and low part count, while the ZVS/SACTM combination minimizes switching losses and output ripple compared with conventional hard-switched buck converters. Technically, the DCM3717 uses a buck-boost ZVS front end that accepts the wide 40-60 V semi-regulated bus and produces a fixed-ratio intermediate link, which the SAC stage then filters and down-converts to a tightly regulated 10.0-13.5 V output. The high effective switching frequency shrinks the output filter, while the lack of an isolation barrier keeps the converter in a thermally efficient, low-profile SM-ChiP surface-mount package with top-side cooling. Typical applications include 48 V direct-to-POL power for AI accelerators and GPUs in hyperscale data centers, telecom 48 V bus intermediate conversion, industrial 48 V robotic and machine-vision rails, and high-density computing boards where minimizing PCB area for power conversion is critical. When designing with this module, provide adequate top-side cooling through a heat-spreader or cold plate, observe the recommended input bulk capacitance, and follow Vicor's paralleling and trim guidelines if scaling beyond 750 W. This page synthesizes distributor pricing, drop-in alternatives within the DCM/ChiP family, and practical thermal/design notes not found in the manufacturer datasheet.
DCP020505U/1K - 2W Isolated DC/DC 5V 400mA | Texas Instruments
The Texas Instruments DCP020505U/1K is a 2 W isolated, unregulated DC/DC converter module delivering 5 V at up to 400 mA from a 4.5 V to 5.5 V input, in a surface-mount SOP (SOIC) package with 1 kV galvanic isolation. An isolated DC/DC converter module is a complete switching power supply that transfers energy across a galvanic isolation barrier, creating a floating output rail that is electrically independent of the input. Within the power management hierarchy - voltage regulator, isolated DC/DC converter, power module - these devices break ground loops, provide level shifting to floating domains, and generate isolated supplies for gate drivers, isolated communication interfaces, and isolated sensors. The DCP02 series belongs to this isolated converter module category. Key features of the DCP020505U/1K include the 2 W output power in a miniature surface-mount footprint, on-chip protection with overtemperature shutdown (OTP), an output-disable function, and a synchronization pin allowing multiple modules to lock to a common switching frequency, minimizing beat-frequency interference. Efficiency is approximately 80% at full load. The push-pull power-stage topology with an 800 kHz internal oscillator enables the compact magnetic design and small external component count - typically only input and output filter capacitors are required. Architecturally, the module integrates a controller, power switches, and a miniature isolation transformer. Because the output is unregulated, the 5 V output tracks the input voltage and load; designs needing tighter tolerance should add a post-regulator such as an LDO on the isolated side. Typical applications include isolated RS-485/CAN transceiver supplies, isolated gate-drive bias for power semiconductors, analog-isolated data acquisition front ends, and industrial PLC I/O channel isolation where a small, low-noise isolated 5 V rail is required. Design consideration: because the output is unregulated, output voltage droop with load must be budgeted; verify the isolated-side load stays within 400 mA and consider post-regulation for precision rails. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
DCR010505U/1K - 1W Isolated DC/DC Converter 5V 200mA | TI
The Texas Instruments DCR010505U/1K is a miniature 1W isolated, regulated DC/DC converter module delivering a single 5V output at up to 200mA from a 5V nominal input (4.5V to 5.5V, +/-10% range), housed in a 12-pin SOIC (DVB) surface-mount package. An isolated DC/DC converter is a power management module that transfers electrical energy across a galvanic isolation barrier, breaking ground loops and protecting downstream circuitry from upstream voltage transients. Within the power system hierarchy, isolation modules sit between a primary power rail and sensitive analog, communication, or sensor circuitry, combining transformer isolation with on-module regulation - a distinct class from non-isolated buck/boost regulators. Key features of the DCR01 family include 1000Vrms isolation (1kV operational isolation, 1-second test), a continuous working voltage across the barrier of 60 VDC or 42.5 VAC, and UL1950 component recognition. The module switches at 400 kHz, supports device-to-device synchronization for multi-module systems, and provides thermal protection plus output short-circuit protection. With 53 W/in3 (3.3 W/cm3) power density and a reliability figure of 125 FITS at 55C, the part suits space-constrained isolation designs. Architecturally, the DCR01 series integrates the power transformer, switching controller, synchronous rectification, and error amplifier into a single molded SOIC package, eliminating the design effort of a discrete isolated flyback supply. Output regulation accuracy is high across line and load, and output ripple noise is very low per the family description. Typical applications include isolated RS-485/RS-232 transceiver supplies, isolated gate-drive and analog-front-end bias rails in industrial automation, isolated sensor and data-acquisition systems, and ground-loop breaking in medical and test equipment front ends. A key design consideration: this module is a 5V-in variant, so the primary rail must stay within 4.5V-5.5V; for 12V or 24V rails, use DCR011 or DCR012 family members with the same footprint. Always verify derating versus load and ambient temperature per the datasheet. This page synthesizes distributor stock status, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing is available on request as of 2026-10-19.
DCR010505U/1KE4 - 1W Isolated DC/DC Module 5V 200mA | Texas Instruments
The Texas Instruments DCR010505U/1KE4 is a miniature 1W isolated, regulated DC/DC converter module delivering a single 5V output at up to 200 mA from a 4.5V to 5.5V input, housed in a 12-pin SOP surface-mount package with 1000Vrms galvanic isolation. An isolated DC/DC converter is a power management module that transfers energy across a galvanic isolation barrier, breaking ground loops and protecting downstream circuitry from hazardous voltages. Within the power-conversion hierarchy - voltage regulator, then DC/DC converter, then isolated DC/DC module - the DCR01 family sits at the board-mount module level, integrating the transformer, switching stage, and regulation loop in one standard JEDEC outline suited to high-volume assembly. Key features include 1000Vrms operational isolation (1-second test), a 400kHz switching frequency enabling a power density of 53 W/in3 (3.3 W/cm3), device-to-device synchronization for parallel or multi-channel designs, thermal protection, and short-circuit protection. The module is UL1950 recognized, and the isolation barrier is rated for 60 VDC / 42.5 VAC continuous working voltage. Architecturally, the DCR01 series uses a high-frequency switching topology with an integrated isolation transformer and a regulation loop that holds the output within tight limits (approximately 4.9V to 5.1V per distributor parametric data), giving very low output noise compared with unregulated converter modules. The 125 FIT reliability figure supports long-life industrial designs. Typical applications include isolated interface power for RS-485 and CAN transceivers, isolated analog front ends in industrial automation, and ground-loop elimination in test and measurement equipment. A key design consideration: because this is a fixed 5V-input part, upstream rail tolerance must stay within the ±10% (4.5V to 5.5V) window; use the DCR012405 variant for 24V buses. This page synthesizes distributor data, drop-in alternatives, and practical design notes beyond the manufacturer datasheet.
DP83848I-POE-EK - DP83848I 10/100 PoE PHY Evaluation Kit | TI
The Texas Instruments DP83848I-POE-EK is the official evaluation board for the DP83848I PHYTER industrial-temperature single-port 10/100 Mb/s Ethernet Physical Layer Transceiver, packaged as a complete Power-over-Ethernet reference design. It integrates an isolated flyback DC/DC converter that delivers 3.3 V from the 48 V PoE input, allowing engineers to power the PHY directly from a PoE source without any external supply. The board exposes the MII/RMII interface, RJ-45 magnetics, and configuration jumpers so the user can exercise HP Auto-MDIX, Energy-Efficient Ethernet, and 10BASE-T/100BASE-TX link modes straight out of the box. An Ethernet PHY transceiver is the physical-layer device that sits between a digital MAC and the copper magnetics of an RJ-45 jack. It handles line coding, link-pulse detection, echo cancellation, and adaptive equalization so the MAC sees a clean MII/RMII bus. The DP83848I-POE-EK falls under Power Management > DC-DC Converters / Specialized Evaluation Boards, which itself sits inside the broader hierarchy of Power Management & Development Tools for industrial Ethernet, factory automation, and IP-camera designs. Key features include industrial-temperature operation from -40 °C to +85 °C, integrated PoE PD (powered device) interface compliant with IEEE 802.3af, an isolated single-output flyback DC/DC stage that produces 3.3 V at the load, programmable LED status indicators for link, speed, activity, and duplex, and on-board MSP430-grade headers for jumper configuration. The 10/100 Mb/s PHY core delivers cable diagnostics and Auto-MDIX for cross-over-cable-free operation. Deeper technical detail is provided in the architecture of the DC/DC stage: a current-mode flyback with primary-side regulation, 1500 V isolation, and synchronous switching chosen for thermal efficiency. The PHY itself uses TI's proprietary DSP-based echo canceller and baseline-wander correction, allowing it to exceed the IEEE 802.3 100BASE-TX return-loss template without external chokes beyond the integrated magnetics. Typical applications include industrial Ethernet nodes and PLCs, PoE-powered IP cameras, factory sensor hubs and IoT gateways, building-automation controllers, and remote wireless access points where a single Ethernet cable carries both data and power. Pairing the kit with a Linux-bound MAC over MII or RMII lets a developer validate end-to-end link integrity within hours. The most important design consideration when using this kit is thermal management of the flyback regulator at full PoE load; the 48 V-to-3.3 V conversion dissipates real power and the layout must keep the input capacitor return path short. Always observe the 802.3af inrush limits when interfacing to midspan or endpoint PSE equipment. This page synthesizes distributor pricing, drop-in alternative evaluation kits, application notes, and PCB-layout considerations not consolidated in the manufacturer's product brief.
E-UC3844BD1 - 500kHz Current Mode PWM Controller, 8-SOIC
The STMicroelectronics E-UC3844BD1 is a high-performance, fixed-frequency current-mode PWM controller IC that delivers the building blocks required for off-line and DC-to-DC converter topologies in an 8-pin SOIC package. It supports switching frequencies up to 500 kHz, operates from a self-biased 11.5 V to 25 V supply rail, and provides up to 50% maximum duty cycle for single-ended forward and flyback designs. The trimmed oscillator is guaranteed to 250 kHz on the timing resistor/capacitor network, enabling precise frequency programming without external compensation. A current-mode PWM controller is an integrated circuit that regulates output voltage by directly modulating the peak inductor current on a cycle-by-cycle basis, instead of controlling only the output voltage. This controller category sits within the broader hierarchy of PWM controllers -> switching controllers -> DC-DC controllers -> power management ICs -> semiconductors. Current-mode control provides inherent input-voltage feed-forward, automatic duty-cycle correction on input transients, and simplified closed-loop compensation because the inductor pole moves with the conversion ratio, leaving a single-pole output filter. Key features include an on-chip 5 V reference with under-voltage-lockout (UVLO) thresholds optimized for 16 V turn-on / 10 V turn-off, low start-up current of 0.5 mA typical, totem-pole output capable of 1 A peak gate drive, automatic feed-forward compensation, and a latching PWM architecture with cycle-by-cycle current limiting. The internal totem-pole driver can directly switch the gate of a power MOSFET or an IGBT, and the synchronous step-down topology variant supports input voltages up to 25 V. The E-UC3844BD1 uses a bipolar control loop with a trimmed precision current-sense amplifier feeding the PWM comparator. Compared to the UC3842 (no UVLO) and UC3843 (8.4 V/7.6 V UVLO) variants, the E-UC3844BD1 offers the 16 V/10 V UVLO window favored for universal-input offline flyback converters. The architecture is built on the same die as the rest of the UC384xB family, with pin-for-pin equivalence to the UC3842BD1, UC3843BD1, UC3844BD1, UC3845BD1 series; only the UVLO thresholds and maximum duty cycle differ. Typical applications include isolated AC-DC adapters, auxiliary supplies in industrial and white-goods equipment, isolated flyback telecom converters, and battery-charging front-ends. Designers select this part when they need an industrial-standard, low-cost current-mode controller with 50% duty cycle for forward or active-clamp topologies and a 16 V UVLO window for offline rectification. When designing with this device, place the current-sense resistor between the source of the external power switch and ground to enable cycle-by-cycle limiting. The 1 A totem-pole output stage requires a gate resistor of 10 ohm to 47 ohm to damp ringing when driving a large MOSFET gate, and the VREF bypass capacitor (typically 0.1 uF ceramic in parallel with 1 uF tantalum) must be placed within 5 mm of the VREF pin to keep loop stability. This page consolidates STMicroelectronics literature, authorized distributor stock, same-family alternatives such as UC3842BD1/UC3843BD1, and direct cross-brand pin-compatible drop-in replacements (UC3844BD1 from onsemi and TI) into one comparison matrix that is not available on any single distributor product page.
FAN2001MPX - 1A 5.5V Sync Buck Converter, 1.3MHz | onsemi
The onsemi FAN2001MPX is a high-efficiency, low-noise synchronous PWM current-mode and Pulse Skip (Power Save) mode DC-DC step-down converter that delivers up to 1 A of output current over a wide input voltage range of 2.5 V to 5.5 V. Housed in a compact 6-pin WDFN Exposed Pad package, it achieves 96% peak efficiency with 1.3 MHz fixed-frequency PWM operation, making it well suited for space-constrained portable and battery-powered designs. A buck (step-down) DC-DC converter is a switched-mode power supply topology that efficiently converts a higher DC input voltage to a lower DC output voltage by rapidly switching an inductor between charge and discharge phases. Buck converters sit within the broader hierarchy of voltage regulators (linear regulators vs. switching regulators), within the power management IC family of semiconductors. Synchronous buck converters replace the traditional rectifier diode with a low-side MOSFET to reduce conduction loss and improve efficiency, especially at high output currents. Key features of the FAN2001MPX include an externally adjustable output voltage range from 0.8 V up to VIN (5.5 V maximum), 100% duty-cycle low-dropout operation, internal soft-start, and a Power Save mode that automatically skips switching cycles at light load to maximize efficiency. The exposed thermal pad provides a low thermal resistance path, enabling the part to deliver 1 A continuously without external heatsinking in typical application conditions. The FAN2001MPX uses a peak-current-mode control architecture with internal compensation, simplifying external component selection and providing excellent line and load transient response. The 1.3 MHz switching frequency allows the use of small low-profile inductors and ceramic capacitors, while the synchronous rectification reduces ripple and improves light-load efficiency. A dedicated EN/SD pin enables simple on/off control and power sequencing in multi-rail systems. Typical applications include single-cell Li-ion powered portable electronics, USB-powered peripherals, hard-disk drive power, point-of-load regulation in 5 V distributed systems, and battery-backed solid-state drives. The wide input range and high efficiency make it particularly suitable for designs where battery life and thermal performance are critical. When designing with the FAN2001MPX, select an inductor with low DCR (typically 1 µH to 2.2 µH) and ensure the input/output ceramic capacitors meet the RMS current rating. The exposed pad must be soldered to a ground copper pour of at least 25 mm² for proper thermal dissipation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineers with a complete selection reference for portable power designs.
FAN4855MTC - 500mA Boost Regulator, Adjustable | Fairchild
The Fairchild Semiconductor (onsemi) FAN4855MTC is a 500 mA high-efficiency PFM boost switching regulator with adjustable output, shutdown, and low battery detect, housed in an 8-TSSOP (0.173 inch, 4.40 mm width) package with 8 pins and surface mounting. A boost regulator is a type of switch-mode DC-DC converter that steps an input voltage up to a higher regulated output voltage using an inductor, a switching element, and a diode. Within the power management hierarchy, the FAN4855 sits under switching regulators, which belong to voltage regulators and power management ICs. Boost converters are essential in battery-powered systems where the cell voltage sags below the level required by the load, such as converting two NiCd/NiMH cells (approximately 1.8 V to 3.0 V) to a 5 V rail. Key features include low-power PFM (pulse frequency modulation) control for high efficiency at light loads, an input voltage range extending to 4.5 V, an adjustable output voltage range of approximately 3 V to 5 V, up to 500 mA maximum switch current, and an integrated low battery detect comparator with shutdown mode for power conservation. According to the Fairchild Semiconductor datasheet, the device targets low-voltage DC-DC conversion in 2-cell battery-powered systems. Technically, the FAN4855 uses asynchronous PFM boost architecture: the internal NPN switch is driven until the current limit or peak threshold is reached, then the inductor energy is released through an external Schottky diode into the output capacitor. PFM operation eliminates the switching-frequency clock of PWM converters, reducing quiescent power and improving efficiency in portable applications. Typical applications include digital cameras, cell phones, and PDAs, as well as any 2-cell alkaline or NiMH product needing a stable 5 V logic or display rail. A key design consideration: PFM regulators exhibit variable switching ripple, so output filtering and PCB layout of the inductor and Schottky diode loop require attention for noise-sensitive loads. This page synthesizes distributor pricing, drop-in alternative data, and practical design notes not found in the manufacturer datasheet.
FAN5308MPX - 800mA 5.5V Sync Step-Down DC-DC | onsemi
The onsemi FAN5308MPX is an 800 mA high-efficiency, low-noise synchronous step-down (buck) DC-DC converter designed for use in battery-powered applications. Housed in a 6-pin WDFN (MLP) exposed-pad package, it integrates the high-side and low-side MOSFETs and operates from a 2.5 V to 5.5 V input rail, delivering an externally adjustable output voltage from 0.8 V up to 5.5 V. According to the manufacturer datasheet, the device achieves up to 96% efficiency and uses a fixed-frequency 1.3 MHz PWM controller that automatically transitions into a pulse-skipping power-save mode at light load to maximize battery life. A buck (step-down) DC-DC converter is a switching-mode power supply topology that uses an inductor, a switch, and a rectifier to convert a higher input DC voltage into a lower output DC voltage with far higher efficiency than a linear regulator. The FAN5308 belongs to the broader hierarchy of switching regulators -> DC-DC converters -> power management ICs -> power semiconductors, and its synchronous-rectifier architecture replaces the conventional Schottky diode with a low-side MOSFET to further reduce conduction loss. Key features of the FAN5308MPX include a 100% duty-cycle pass-through mode that allows the output to follow the input when VIN drops near VOUT, an external soft-start/programmable current limit, internal compensation, and built-in protections such as over-current, over-voltage, and thermal shutdown. The 1.3 MHz switching frequency enables the use of small ceramic input and output capacitors as well as a tiny chip inductor, making the converter suitable for space-constrained portable designs. Architecturally, the FAN5308 uses a current-mode PWM control loop with an internal synchronous rectifier. Current-mode control simplifies loop compensation by referencing the inductor current rather than the output voltage, which provides inherent cycle-by-cycle current limiting and excellent line-transient response. The exposed thermal pad on the bottom of the WDFN package provides a low-thermal-resistance path to the PCB copper pour, helping dissipate up to ~1 W of internal loss at full 800 mA load. Typical applications include single-cell Li-ion powered portable electronics, smartphones, wearables, USB-powered devices, SSDs, and any system that requires a compact, high-efficiency point-of-load regulator. The part is also widely used as a core or peripheral supply in microcontroller-based boards. A key design consideration is inductor selection: a 1.0-2.2 µH shielded power inductor with low DCR is recommended to minimize conduction loss and ripple. Ensure the input and output ceramic capacitors are rated for at least 6.3 V, placed as close as possible to the IC to suppress switching-node ringing. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
FDMF3035-F135 - 5x5 mm Smart Power Stage | onsemi
The onsemi FDMF3035-F135 is a 5 V PWM-compatible half-bridge smart power stage module that integrates a driver IC, a bootstrap Schottky diode, and two power MOSFETs in a thermally enhanced 31-PQFN package measuring 5 mm x 5 mm. The module is intended for synchronous buck converters, where its integrated half-bridge stage can reduce external switching-path inductance and simplify power-loop layout. The verified source data identifies the device as a half-bridge driver for synchronous buck converters and specifies the package as 31-PQFN (5x5). A smart power stage combines gate-drive electronics and switching transistors into one power-conversion building block. In a synchronous buck converter, the high-side and low-side MOSFETs alternately connect the switch node to the input rail and ground. Integrating those devices with the driver reduces the number of discrete components and can improve switching performance by minimizing parasitic inductance in the power path. The module also includes a bootstrap Schottky diode for high-side gate-drive support. The FDMF3035 supports a three-state 5 V PWM input, allowing it to interface with a broad range of PWM controllers. Its FCCM pin supports diode-emulation operation intended to improve light-load efficiency. The reduced dead time and propagation delays of the integrated driver are specifically highlighted by onsemi as benefits for dynamic converter performance. These characteristics make the module relevant to compact, high-frequency synchronous buck designs where layout area, switching behavior, and controller compatibility are important. Typical applications include notebook and computing power supplies, communications equipment, industrial DC-DC converters, and other compact systems using a controller with compatible PWM signaling. The integrated package is especially useful when the converter designer wants to reduce the number of external power-stage components while maintaining a defined driver and MOSFET arrangement. The source data does not provide complete electrical ratings, pin names, thermal resistance, or detailed timing curves, so those values must be confirmed in the manufacturer datasheet before a design is released. When designing around the FDMF3035-F135, prioritize the power-loop layout and thermal path. Place the module close to the controller output, high-frequency capacitors, and inductor to reduce the commutation-loop area. Verify the controller voltage levels, PWM polarity, dead-time behavior, bootstrap requirements, and local input/output capacitance against the FDMF3035 datasheet. Because the module combines switching devices and driver circuitry, its package rating and thermal performance should be evaluated as a system rather than as an isolated driver IC.
FDMF6704 - High-Frequency DrMOS Module | onsemi
The onsemi FDMF6704 is an Xtra Small DrMOS power-stage module optimized for high-current, high-frequency synchronous buck converters. The verified listing identifies a 40-pin MLP package measuring 6 mm by 6 mm, while the manufacturer datasheet describes an integrated MOSFET-and-driver solution requiring one PWM input to control the high-side and low-side devices. The module combines a half-bridge driver with its power MOSFETs to reduce external switching-stage components and board area. A DrMOS module is a semiconductor power stage that integrates a high-side MOSFET, low-side MOSFET, and associated gate driver. It belongs to the power-management IC hierarchy and is used inside synchronous DC-DC converters. Compared with a discrete MOSFET layout, the integrated module can shorten gate-drive paths, reduce assembly count, and simplify high-frequency power-stage design. Its synchronous topology alternately uses the high-side and low-side MOSFETs to transfer energy during different switching phases. The FDMF6704 is identified as the extra-small, high-performance, high-frequency member of the XS DrMOS family. Verified source material states that its 6 mm MLP format provides 44% space saving compared with a conventional 8 mm by 8 mm MLP DrMOS package. That dimensional reduction is especially useful where converter area, current density, or placement beside processors and memory is important. The integrated driver is controlled by a single PWM signal, reducing control-interface complexity. The module is suited to compact synchronous buck solutions operating at elevated switching frequencies. Its integration can make high-frequency layouts more repeatable because the high-side driver, low-side driver, and power devices are packaged together. Nonetheless, PCB design remains critical: switching-node copper must be minimized, power and ground paths must be short, and the package requires adequate thermal spreading. Proximity to sensitive input, clock, or communication circuitry should be avoided to limit switching-node coupling. Typical uses include computing power rails, notebook and mobile equipment, telecommunications supplies, networking systems, and other compact converters requiring substantial current from a small power stage. FDMF6704 is also useful when redesigning an existing discrete half-bridge around an integrated DrMOS footprint. Exact electrical ratings must be taken from the manufacturer datasheet and validated against the target converter’s voltage, current, switching frequency, thermal environment, and layout. A principal design consideration is that integration does not eliminate thermal or layout constraints. The 6 mm by 6 mm MLP concentrates a complete switching stage into a compact area, making exposed-pad heat transfer, current-loop minimization, and controlled switching transients central to reliable operation. Designers should use the datasheet’s recommended land pattern, pin definitions, capacitance values, and layout guidance rather than treating the package like an unrelated generic power module. This page consolidates the verified source information, identifies the FDMF6704’s DrMOS role and physical format, and separates documented facts from electrical parameters that still require manufacturer-data confirmation. It also records the absence of a verified drop-in substitute list, avoiding unsupported compatibility claims while providing practical procurement and design context.