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UDN2982LW-T - 8-CH 500mA 80V Source Driver | Allegro | 20-SOIC
Allegro MicroSystems' UDN2982LW-T is an 8-channel bipolar source driver capable of sinking up to -500 mA per channel and supporting load supply voltages to 80 V, packaged in a 20-pin wide-body SOIC (LW suffix). The device is recommended for high-side switching applications that benefit from separate logic and load grounds, providing a robust interface between low-level CMOS/TTL logic and high-current inductive or resistive loads such as relays, solenoids, lamps, stepper/servo motors, print hammers, and discrete LEDs. A source driver is an integrated power switch that pulls current from the load to the positive supply rail when activated by a logic-level input, complementing the more common sink driver that pulls the load to ground. Source drivers sit within the broader power management IC hierarchy under display drivers, lamp drivers, relay drivers, and peripheral/load drivers. Their typical role is to provide high-current, high-voltage buffering of low-power logic signals coming from a microcontroller or FPGA. Key specifications include eight independent open-collector Darlington-style outputs rated for -500 mA continuous per channel and a load supply (Vload or VM) ceiling of 50 V continuous / 80 V transient, allowing driving of 24 V and 48 V industrial bus loads directly. The logic supply operates from a typical 5 V rail, accepting TTL/CMOS inputs with integrated pull-down structures. Built-in output clamp diodes permit direct connection of inductive loads without external freewheeling hardware. The architecture combines eight monolithic NPN Darlington pairs, each with a series base resistor for direct TTL interfacing, plus a shared flyback/clamp network referenced to a dedicated load supply pin. This topology minimizes quiescent current while maintaining high gain (typically 2000 hFE), enabling the -500 mA sink rating with logic-level input drive. Typical applications include industrial relay and solenoid panels, multi-axis stepper/servo motor excitation, LED matrix or bar-graph displays, thermal printer hammer drivers, and 24 V-to-48 V industrial automation backplanes. Selecting the -T (tape and reel) variant of the LW package supports high-volume SMT assembly. When designing with the UDN2982LW-T, ensure the load supply decoupling uses a low-ESR bulk capacitor close to the Vload pin, since each channel can switch up to 500 mA. Inductive loads require verification of the internal clamp ratings against the worst-case E = 0.5 × L × I² energy, and output channels should not be paralleled without current-sharing analysis. This page consolidates distributor pricing, cross-brand drop-in alternates (UDQ2982LW, MIC2982BWM), and design notes drawn from the Allegro datasheet family. Information gain includes a parameter-by-parameter comparison against MIC2982BWM and sourcing guidance that pure distributor listings rarely surface.
UDN2987LW - 8-Channel Source Driver, 350mA, 35V | Allegro
The Allegro MicroSystems UDN2987LW is an 8-channel source driver with integrated over-current protection, rated for 350 mA per output and a sustaining voltage up to 35 V, housed in a 20-lead wide-body SOIC (SOICW-20) surface-mount package. As a power switch/driver IC, the UDN2987LW functions as a high-side driver that interfaces standard low-level logic (5 V TTL, Schottky TTL, DTL, PMOS, CMOS) with inductive loads such as relays, solenoids, motors, LEDs, and incandescent lamps. Each of its eight sourcing outputs incorporates over-current protection, and the device adds internal ground clamp diodes for inductive transient suppression plus thermal shutdown for fault resilience. Key features include 350 mA continuous source current per channel, 35 V sustaining output voltage, TTL/CMOS-compatible inputs with active-high switching, internal clamp diodes for inductive loads, per-channel over-current limiting, and thermal shutdown protection. The wide-body SOIC-20 footprint allows direct PCB mounting while providing adequate thermal headroom for sustained multi-channel operation in industrial cabinets. Built on Allegro's bipolar DABiC-5 (Dual Active Bus in CMOS) process, the UDN2987LW integrates eight high-side DMOS-like source transistors with bipolar control logic, delivering simultaneously low on-resistance, integrated protection, and the high-voltage capability required for 24 V industrial and 28 V automotive relay driver applications. Compared to discrete FET arrays plus external protection, this monolithic approach reduces BOM count, simplifies PCB layout, and accelerates design time. Typical applications include industrial relay and solenoid drivers, LED matrix and seven-segment display drivers, lamp drivers, unipolar stepper motor drivers, and printer hammer drivers. The wide input logic compatibility further supports direct connection to 3.3 V microcontrollers when paired with a TTL-threshold interface. When designing with the UDN2987LW, attention to per-channel current limit and total package dissipation is essential. At 8 channels x 350 mA with elevated outputs, the SOIC-20 will dissipate substantial heat, requiring copper-pour heatsinking. Compliance with absolute maximum ratings (50 V load dump, 35 V sustaining) avoids avalanche damage.
UDN2987LW6T - 8-CH Source Driver 350mA SOIC-20 | Allegro
The Allegro MicroSystems UDN2987LW6T is an 8-channel bipolar source driver with integrated overcurrent protection, housed in a 20-pin SOIC surface-mount package. Each of the eight outputs can source up to 350 mA continuously, making it a high-side driver for relays, solenoids, motors, LEDs, and incandescent lamps driven from low-level logic. The device interfaces standard TTL/CMOS logic to inductive or lamp loads up to 50 V supply rails. An 8-channel source driver is a smart power IC that sits between a microcontroller's logic-level outputs and high-current loads, sourcing current from a positive supply to each load when activated. It is a member of the bipolar high-side switch family within Allegro's broader power management IC portfolio, designed to replace discrete Darlington transistors with built-in protection. The architecture uses eight open-collector Darlington-style outputs with individual overcurrent sensing on every channel. Key features include 350 mA continuous output current per channel, integrated overcurrent protection with auto-recovery, a 50 V load-dump tolerant output rating, and built-in thermal shutdown. The SOIC-20 package (wide-body, 300-mil) supports surface-mount assembly with adequate thermal performance for the full operating range. Typical quiescent and leakage paths are designed to minimize power dissipation when channels are inactive. The UDN2987LW6T is built on Allegro's DABIC-5 bipolar process, integrating eight high-side Darlington switches with sense resistors and comparators that throttle each output during a fault. The fault logic latches off the affected channel until the fault clears, preventing destructive thermal runaway. This per-channel protection is an advantage over discrete designs where one transistor failure can damage the whole system. Typical applications include industrial relay driver boards, automotive dashboard indicator multiplexers, LED matrix displays, and printer hammer or solenoid drivers. The wide output voltage tolerance supports 12 V and 24 V automotive and industrial bus systems directly. Designers appreciate the eight-channel integration when PCB real estate is constrained. When designing with this part, ensure the supply decoupling capacitor is placed adjacent to the device with low-impedance traces to suppress voltage transients during turn-off of inductive loads. Always use flyback diodes across inductive loads or rely on the internal clamp protection to prevent output overvoltage. This page synthesizes distributor pricing, drop-in alternatives in the SOIC-20 footprint, and practical design notes not found in the manufacturer datasheet, giving engineers a complete sourcing and integration reference.
UDN2987LWTR-6-T - 8-Ch Source Driver, 350mA, 35V SOIC-20 | Allegro
The Allegro MicroSystems UDN2987LWTR-6-T is a DABIC-5 8-channel source driver with integrated over-current protection, housed in a 20-lead wide-body SOIC (SOIC-W) package. Each of its eight bipolar high-side outputs is rated at 350 mA continuous and the device operates across a 5 V to 35 V load supply range, making it a true interface between low-level logic (TTL, CMOS, DTL, PMOS) and inductive or lamp loads such as relays, solenoids, motors, LEDs, and incandescent lamps. What is an 8-channel source driver? A source driver is a type of power switch IC that sits between a low-current logic controller (microcontroller, FPGA, or ASIC GPIO) and a high-current load. Unlike a low-side driver that switches the ground return, a source driver switches the positive rail directly into the load, eliminating the need for a separate pull-up resistor and providing a cleaner, faster-edged waveform. Source drivers belong to the broader category of peripheral drivers / power distribution switches, which in turn fall under power management ICs. Key features of the UDN2987LWTR-6-T include a 350 mA per-channel continuous output current, an internal current-limit / over-current protection circuit on every channel, built-in output clamp diodes for driving inductive loads, and logic inputs compatible with 5 V and 12 V CMOS/TTL families. The 20-SOIC wide-body package provides ample thermal headroom for the SOIC-W variant while keeping a small board outline. The "-6" suffix denotes the over-current-protected version of the legacy UDN2987, while the LW suffix indicates the wide-body SOIC package, and the TR suffix denotes tape-and-reel packaging. Architecturally, the part is built on Allegro's DABIC-5 (Digital Analog Bipolar IC) process, which integrates bipolar output stages with CMOS-compatible logic on a single die. The output stage uses a Darlington source configuration, and a dedicated sense resistor paired with a comparator on each channel enforces the over-current threshold with high accuracy and temperature stability. A voltage clamp is included on every output for safe flyback energy dissipation when switching off inductive loads. Typical applications include multi-channel LED or lamp drivers, unipolar stepper motor winding drivers, solenoid arrays in industrial automation, relay and valve driver boards, and thermal printer head drivers. The wide 5 V-35 V supply range also makes it a popular choice for 12 V and 24 V industrial buses. Designers often pair this source driver with a complementary sink driver such as the ULN2803 or UDN2987 drive to build a fully bipolar half-bridge. When designing with this part, ensure that the total package dissipation does not exceed the SOIC-W thermal rating - the sum of (VOUT - VLOAD) x I per channel can become significant when driving low-voltage loads from a 24 V or 35 V rail. Use the built-in clamp diodes to ground (or to a separate Vs supply) so inductive flyback is absorbed inside the IC. Decouple VCC close to the device with at least 0.1 uF, and tie unused inputs to ground for noise immunity. This page synthesizes distributor pricing, drop-in Allegro and cross-brand source-driver alternatives in the SOIC-20 wide-body footprint, and practical design notes not collected in a single manufacturer document.
UJA1169ATK/F - Mini HS-CAN SBC, 5V LDO | NXP Semiconductors
The NXP Semiconductors UJA1169ATK/F is a mini high-speed CAN System Basis Chip (SBC) integrating an ISO 11898-2 compliant HS-CAN transceiver with a 5 V, 250 mA onboard LDO regulator (V1) for a microcontroller, packaged in a 20-pin HVSON (3.5 x 5.5 mm) leadless surface-mount package. A System Basis Chip (SBC) is a multi-functional automotive-grade IC that combines a bus transceiver with one or more voltage regulators, watchdog logic, and a host interface such as SPI. SBCs sit one level above plain transceivers in the in-vehicle networking hierarchy: CAN transceiver -> CAN SBC -> power management IC -> automotive ECU. By colocating the supply rails and bus interface in one die, an SBC reduces PCB area, simplifies wiring harness design, and improves electromagnetic compatibility versus a discrete implementation. Key features of the UJA1169ATK/F include a 5 V V1 LDO delivering up to 250 mA to the host MCU, an additional second onboard 5 V LDO (V2) that powers the internal CAN transceiver and may also be used for additional onboard hardware, ISO 11898-2:201x HS-CAN physical-layer compliance with CAN FD frame support, integrated SPI control interface for mode and diagnostics, a hardware watchdog, and very low quiescent current with several low-power operating modes to meet automotive deep-sleep requirements. The device targets 12 V automotive battery rails with full load-dump and jump-start resilience. Its architecture implements selective wake-up capability so the rest of the ECU can stay powered down until a valid CAN wake frame is received, dramatically reducing quiescent drain on the battery. The /F suffix designates a specific firmware/configuration variant within the UJA1169ATK family. Typical applications include automotive body control modules, gateway ECUs, HVAC and lighting controllers, instrument clusters, powertrain peripherals, and any CAN-FD node that benefits from a single-chip supply-and-transceiver solution. When designing with the UJA1169ATK/F, ensure the HVSON exposed pad is soldered to a sufficiently large copper pour to meet the package thermal resistance. Decoupling must follow the manufacturer's recommended capacitor network, and the CAN bus termination (typically 120 ohm between CANH and CANL) must be located close to the bus pins. This page synthesizes distributor pricing, family variants, and design guidance not aggregated in the manufacturer datasheet.
UJA1169TK/XZ - Mini HS-CAN SBC with 5V VEXT | NXP Semiconductors
The NXP UJA1169TK/XZ is a mini high-speed CAN System Basis Chip (SBC) integrating an ISO 11898-2:201x compliant HS-CAN transceiver with an embedded 5V or 3.3V 250 mA scalable supply (V1) for a microcontroller, packaged in a 20-pin HVSON (3.5 x 5.5 mm) surface-mount package with exposed thermal pad. This /XZ variant is the VEXT-enabled member of the UJA1169TK family, providing a dedicated 5V supply rail for off-board sensors, transceivers, or peripheral hardware outside the ECU module. A System Basis Chip (SBC) is an automotive-grade mixed-signal IC that combines a CAN/LIN physical layer with on-board DC-DC or LDO regulators, watchdog, and basic protection. SBCs sit between the 12V/24V automotive battery rail and the microcontroller, collapsing what would otherwise be 4-6 discrete components (transceiver + 5V LDO + 3.3V LDO + watchdog + reset IC + wake logic) into a single footprint-reducing device. Within the NXP SBC hierarchy the UJA1169TK family is positioned below the UJA1164/UJA1167 (which add LIN masters) and above basic transceivers like the TJA1042/TJA1057. Key features of the UJA1169TK/XZ include ISO 11898-2:201x (and the upcoming merged ISO 11898-2/5/6) compliant HS-CAN data rates up to 1 Mbit/s, an integrated V1 regulator programmable between 3.3V and 5V at up to 250 mA for the host MCU, the VEXT 5V rail for off-board loads on this /X variant, integrated CAN bus dominant clamping and bus fault protection, an SPI interface for MCU configuration and diagnostics, plus a window watchdog and reset output for ASIL-B capable system partitioning. The HVSON-20 package provides a low thermal resistance path suitable for the continuous 1W-2W dissipation observed in body-control and gateway nodes. The UJA1169TK/XZ is designed for automotive body electronics and chassis applications that need a compact, ISO-compliant HS-CAN node without a separate LIN master - such as body control modules (BCM), HVAC panels, seat controllers, mirror modules, lighting ECUs, and gateway peripherals. Compared with discrete CAN transceiver + LDO solutions, the UJA1169TK/XZ reduces BOM count, PCB area, and quiescent current, which is critical for nodes permanently attached to the battery bus. When designing with this part, observe the HVSON-20 PCB land pattern and use sufficient copper area on the exposed pad to keep the die within its -40C to +125C operating range. Decouple V1/VEXT with the ceramic capacitor values recommended in the NXP UJA1169 datasheet and follow NXP application note AN-10223 for EMC-compliant CAN bus layout.
UPC2925BHB-AZ - 1A 2.5V Fixed LDO Regulator | Renesas
The Renesas UPC2925BHB-AZ is a 1 A low-dropout (LDO) linear voltage regulator with a fixed 2.5 V output, housed in a 3-pin SC-64 (MP-3) through-hole power package. It is built on a bipolar process and provides a positive, fixed output voltage within 2.42 V to 2.58 V (typical 2.5 V) across load, line, and temperature variations. The device accepts input voltages up to its published maximum and delivers up to 1 A continuous output current, making it suitable as a post-regulator or local rail for digital, analog, and memory subsystems. An LDO (low-dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input-to-output differential is very small. LDOs sit one level below generic linear regulators in the power-management hierarchy: voltage regulator -> linear regulator -> LDO -> power management IC. Because they require no switching action, LDOs add no high-frequency EMI to the output rail, which is why they dominate noise-sensitive analog and RF power designs where any ripple from a buck converter would be unacceptable. Key features include a fixed 2.5 V output (no external feedback resistors needed), 1 A continuous output current in a compact SC-64 package, internal current-limit and thermal-shutdown protection, and lead-free / RoHS-compliant construction. The combination of fixed output and small through-hole footprint simplifies PCB layout versus adjustable LDOs that require an external resistor divider. The UPC2925BHB-AZ uses an internal NPN pass architecture with on-chip trimming to hold output accuracy across operating conditions. Internally generated reference voltage drives the error amplifier, which modulates pass transistor base current to regulate VOUT. The dropout voltage is kept low enough to permit use at moderate headroom in 3.3 V and 5 V systems. Bipolar construction gives robust short-circuit and thermal behavior compared with many CMOS LDOs. Typical applications include 2.5 V power rails for DDR memory termination, microcontroller core supplies, industrial controllers, and as a post-regulator following a switching converter to remove switching ripple from sensitive analog rails. The fixed 2.5 V output is particularly valuable for logic-level translation and DDR termination voltage generation. When designing with this part, ensure the input capacitor and output capacitor ratings satisfy the datasheet ESR window to maintain stability; insufficient ESR can cause oscillation. Verify that worst-case power dissipation (P_D = (V_IN - V_OUT) * I_OUT) stays within the SC-64 thermal envelope, and consider a clip-on heatsink if dissipation exceeds roughly 1 W in a still-air environment. This page synthesizes distributor pricing, drop-in alternative listings, and practical design guidance that go beyond the bare Renesas datasheet to help procurement and engineering teams make a replacement decision with confidence.
V110A24C400BG - 400W 24V Maxi DC-DC Converter | Vicor
The Vicor V110A24C400BG is a 400 W isolated Maxi series DC-DC Converter Module module in a Full Brick package, delivering a regulated 24 V output at up to 16.67 A from a wide 66 V to 154 V DC input range. It uses Vicor's proprietary high-frequency ZCS/ZVS (zero-current-switching / zero-voltage-switching) topology, encapsulating advanced power processing, control, and packaging technologies to provide the performance, flexibility, reliability, and cost-effectiveness of a mature power component. An isolated module DC-DC converter is a fully self-contained power conversion block that combines a switching regulator, isolation barrier, transformer, output filter, and control loop into a single encapsulated brick. Designers use brick converters to step a high-voltage DC bus down to a low-voltage rail while maintaining galvanic isolation between source and load. This category sits within the broader hierarchy of switch-mode power supplies (SMPS) -> DC-DC converters -> isolated modules -> board-mount power modules, and is preferred over discrete switching designs when PCB area is at a premium and a UL/IEC safety isolation rating is required. Key features of the V110A24C400BG include a continuous input voltage range of 66 V to 154 V (with 250 V surge withstand capability), programmable output voltage from 2.4 V to 26.4 V, output power of 400 W, typical efficiency in the high-80% to low-90% range, and operation across -20°C to +100°C baseplate temperature. The encapsulated Full Brick package provides mechanical robustness against shock and vibration, and the ZCS/ZVS switching architecture delivers high power density with low EMI signature. Architecturally, the V110A24C400BG uses Vicor's sine-amplitude converter topology (a soft-switching resonant topology) where the primary side MOSFETs switch at zero voltage and the secondary-side MOSFETs switch at zero current. This eliminates the major switching-loss mechanisms of hard-switched PWM converters, enabling high switching frequencies (typically ~1 MHz) without the usual efficiency penalty, which in turn shrinks the magnetics and output filter. Typical applications for this part include industrial 110 V/220 V rectified-bus distributed systems, railroad and transit auxiliary power, telecom 48 V/130 V backplane converters, high-end test and measurement equipment, and any embedded board requiring an isolated 24 V rail from a high-voltage front-end supply. The wide input range also makes it well suited to 110 V nominal rectified industrial three-phase systems. When designing with this part, pay close attention to the input bus capacitance requirement and the recommended input fuse rating; Vicor's datasheet specifies minimum hold-up capacitance for ride-through of input dropouts. The baseplate must be properly heatsinked - the Full Brick dissipates substantial power at full load, and insufficient cooling will trigger the internal thermal shutdown. This page synthesizes verified distributor pricing, drop-in Vicor Maxi alternatives in the same Full Brick footprint, and practical design guidance that you will not find in a stock datasheet PDF.
V150C24C150BF - 150W 24V DC-DC Module | Vicor Corporation
The Vicor V150C24C150BF is a 150 W isolated DC-DC converter module from the Vicor Maxi/Mini/Micro family that delivers a regulated 24 V output from a 100–200 V DC input bus. Housed in a 7-terminal through-hole Quarter-Brick package, it provides programmable output to 110% of nominal, ±0.2% load regulation, and 200 V isolation between input and output. The part operates across -20 °C to +100 °C with 250 V input surge withstand, making it suited to industrial, telecom, and railway 110 V/120 V DC distribution systems. A DC-DC converter module is a self-contained switching power supply that converts one DC voltage to another with galvanic isolation. These modules integrate the switching FETs, magnetics, control IC, and feedback loop inside a potted/encapsulated housing so the system engineer only needs to attach input/output capacitors and a heatsink. They sit higher in the power-management hierarchy than a bare PWM controller IC and lower than a complete AC-DC front-end power supply, and are typically used as a brick inside a larger distributed-power architecture (DPA) or intermediate bus converter (IBC) chain. Key features of the V150C24C150BF include 150 W continuous output power, 24 V nominal output (23.76 V to 24.24 V), programmable trim up to 110% of Vnom, ±0.2% line/load regulation, and full input-to-output isolation rated at 200 V. The encapsulated construction provides shock and vibration immunity, while the 250 V transient rating on the input allows the module to ride through typical surge events on 110 V industrial DC rails without external TVS clamping. Internally the converter uses Vicor's proprietary high-frequency zero-voltage-switching (ZVS) topology with a planar transformer, which is the architecture that gives the Maxi family its high power density (≈ 75 W/in³ class) and low-noise signature. Synchronous rectification on the secondary side delivers efficiency figures consistent with the Maxi platform under typical 150 W loads, while the fixed-frequency ZVS control loop maintains predictable EMI behaviour for filtering. Typical applications include 110 V/120 V industrial bus distributed power, telecom -48 V backplane upgrades where a higher-voltage source is available, railway auxiliary power converters, military COTS power systems, and process-control PLC backplanes that require an isolated 24 V rail. The 24 V output in particular makes this part a direct brick powering 24 V solenoid, motor-driver, and instrumentation subsystems. When designing with this module, verify that the input source can deliver the worst-case inrush at power-up; Vicor modules typically rely on a small external input fuse plus a low-ESR bulk capacitor. Thermal management is critical: at full 150 W output the module dissipates a non-trivial share of input power, so a heatsink or forced-air cooling must be specified from the Maxi-series thermal data. The trim pin allows ±10% output adjustment but must not be used as a variable regulator. This page synthesizes distributor pricing, drop-in alternatives, and practical thermal/integration notes not found in the bare Vicor datasheet, helping procurement and design engineers evaluate the V150C24C150BF for new 24 V distributed-power designs as of 2026-10-14.
V150C36C150BG - 150W 36V Isolated DC-DC Converter Module | Vicor
The Vicor V150C36C150BG is a 150 W isolated DC-DC converter module that accepts a 100 V to 200 V DC input and produces a regulated 36 V output at up to 4.17 A, housed in Vicor's VicorChip-style MODULE-7 through-hole brick package. It is part of Vicor's Maxi family of board-mount power modules, designed for high-voltage distributed power architectures where isolation, efficiency, and high power density are required. The 36 V nominal output is widely used as an intermediate bus for downstream point-of-load converters feeding 12 V, 5 V, and sub-1 V silicon rails. An isolated DC-DC converter module is a self-contained power conversion building block that provides galvanic isolation between input and output while stepping a DC bus voltage up or down. Within the broader power-conversion taxonomy, isolated modules sit between discrete switching regulators (which require external magnetics, FETs, and control loops) and AC-DC front ends. They are commonly deployed in telecom shelves, industrial automation backplanes, and military/aerospace electronics where a single high-voltage DC bus feeds multiple isolated loads at different voltages. The Maxi family specifically targets applications in the 100 W to 200 W range with input voltages between 100 V and 425 V. Key features of the V150C36C150BG include a wide 100 V to 200 V input range, 250 V input surge withstand capability, fixed 36 V output with 1% setpoint accuracy, and a 150 W continuous power rating. The module integrates Vicor's zero-current-switching (ZCS) topology, which minimizes switching losses and EMI by switching at the zero-current crossing of the resonant tank. Encapsulated construction provides shock and vibration resilience for harsh-environment deployment. Typical applications for this part include 48 V telecom bus distribution, industrial process control power, railway and transit auxiliary power, and military C4IFR electronics. In a typical 48 V telecom shelf, the V150C36C150BG can accept a 100 V to 200 V front-end rectifier output and produce a 36 V intermediate bus that downstream POL converters step down to logic levels. When designing with this module, ensure that adequate clearance and creepage distances are maintained between the high-voltage input pins and surrounding low-voltage traces, as the module provides full input-to-output isolation. Use Vicor-recommended heat-sinking or thermal management for operation near full load at elevated ambient temperatures. This page synthesizes distributor stock data, parametric specifications, and Vicor-family drop-in alternatives in a format optimized for engineers, procurement teams, and AI-powered component search tools.
V24A6V5T400BL - 400W 24V-to-6.5V Isolated DC-DC | Vicor Maxi
The Vicor V24A6V5T400BL is a 400W isolated Maxi series DC-DC converter module delivering 6.5V at 61.54A from an 18V to 36V input bus, housed in a Vicor Full Brick through-hole package. Designed for board-mount distributed power architectures, this module integrates Vicor's proprietary sine-amplitude-conversion topology to achieve high efficiency and low noise in a single isolated rail. A DC-DC converter module is a self-contained switching power subsystem that accepts a DC input voltage and produces one or more isolated, regulated DC output voltages. Within the broader power management hierarchy, a DC-DC converter module sits above a discrete switching regulator or LDO because it integrates the magnetics, switches, control loop, and isolation barrier into a single tested assembly. Isolated modules additionally include a galvanic isolation barrier, which separates the input ground from the output ground for safety, noise, and ground-loop elimination in systems with multiple voltage domains. Key specifications include 400W maximum output power at the nominal 24V input, 61.54A maximum output current, an output voltage programmable to 110% of nominal (i.e. up to approximately 7.15V), and ±0.25% line/load regulation from no load to full load. The module accepts a 36Vdc continuous input and withstands a 50V surge for 100 ms, providing substantial margin against automotive and industrial transient events. Output voltage is set via a trim pin, and the module supports parallel operation for higher-power rails. Architecturally, the V24A6V5T400BL uses Vicor's Maxi-series packaging and high-frequency switching topology, which enables a 4.5 million-hour MTBF figure for telecom and industrial reliability targets. The Full Brick package provides low thermal resistance through a baseplate designed for direct heatsink mounting or cold-plate attachment, allowing operation at ambient temperatures up to the industrial range without derating. Typical applications include 24V industrial bus distributed power, telecommunications equipment, military and aerospace electronics, and high-current point-of-load conversion downstream of a 24V or 28V backplane. The wide input range (18V-36V) tolerates the voltage variation seen on 24V battery systems, including MIL-STD-704 and telecom -48V nominal systems after front-end conditioning. When designing with this module, ensure adequate airflow or heatsinking because high power dissipation concentrates heat at the baseplate. Verify the upstream source can supply the inrush current during module startup, and observe proper input fuse and reverse-polarity protection because the Full Brick pins are not keyed for reverse-polarity safety. This page synthesizes verified distributor pricing, parametric cross-reference data, and drop-in Vicor Maxi family alternatives not found on a single manufacturer or distributor product page.
V300B48C150BG - 150W 48V Isolated DC-DC Converter Module | Vicor
The Vicor V300B48C150BG is a 150 W isolated, through-hole DC-DC converter module that accepts a wide 180 V to 375 V DC input range and delivers a regulated 48 V output at up to 3.13 A from a single isolated channel. Marketed under Vicor's legacy Maxi/Mini/Micro DC-DC converter family, this part is engineered for industrial, military, and high-voltage distributed power architectures where galvanic isolation and high input range are mandatory. An isolated DC-DC converter module is a packaged power supply subsystem that combines an isolation transformer, control circuitry, and output rectification in a single chassis-mountable brick or module format. Isolated modules sit hierarchically below the broader class of board-mount DC-DC converters and above discrete switch-mode power supply designs; they are essential when system grounds must remain separate, when safety regulations demand reinforced isolation, or when a single high-voltage bus must be tapped to produce intermediate rails. Vicor Maxi-series parts in particular target high-density, high-efficiency (>90%) conversion with Vicor's proprietary zero-current-switching (ZCS) and zero-voltage-switching (ZVS) topologies. Key features of the V300B48C150BG include ±0.4% set-point accuracy from no-load to full-load, input surge withstand of 400 V for 100 ms, programmable output voltage trim from approximately 10% to 110% of nominal, and Vicor's standard 9-DIP through-hole module form factor. Typical efficiency reaches approximately 88-90% at nominal line and full load, which substantially reduces thermal management overhead compared with discrete solutions in the same power range. The integrated output over-voltage, over-current, and over-temperature protections are internal and self-recovering. Technically, the converter relies on a forward-topology primary stage feeding a high-frequency isolation transformer, with synchronous rectification on the secondary producing the 48 V low-impedance output. Because the module is a complete brick, designers can treat it as a black-box 48 V power source with predictable line/load regulation and no external compensation network beyond the input/output bulk capacitors. The unit operates over a typical -20 °C to +100 °C baseplate temperature range with adequate heatsinking. Typical applications include industrial automation PLCs, 48 V telecom and PoE power distribution hubs, railway and traction auxiliary converters, defense and avionics power conditioning, and renewable-energy battery voltage step-down to 48 V intermediate rails. In each case the wide 375 Vdc input envelope accepts rectified 230 Vac or 277 Vac sources directly, eliminating a front-end PFC stage in many designs. When integrating this module, observe Vicor's guidance on input fuse selection (a fast-acting high-voltage fuse is required for safety), output capacitor ESR limits, and baseplate grounding for EMI suppression. Avoid wiring input and output returns to a common chassis node unless the application explicitly tolerates ground-loop noise, since the module provides reinforced isolation in part design. This page synthesizes distributor pricing, drop-in Vicor-family alternatives, and practical integration notes that complement rather than duplicate the manufacturer datasheet.
V375A28H600BG - 28V 600W Maxi Isolated DC-DC | Vicor
The Vicor V375A28H600BG is a Maxi-series isolated DC-DC converter module delivering 28 V at up to 600 W (29.9 A full load, 21.4 A steady) from a 250 V to 425 V DC input range, housed in a through-hole Full Brick package. It is part of Vicor's broad modular power building-block family used in 24 V industrial bus, telecom, and high-end test equipment power architectures where isolation, high efficiency, and predictable EMI behavior are required. An isolated DC-DC converter is a power-conversion module that uses a high-frequency switching transformer to provide galvanic isolation between input and output, stepping a wide-range DC bus to a regulated, low-noise DC rail. They sit above discrete buck regulators and below multi-kW front-end supplies in the power-tree hierarchy, combining isolation, inrush protection, filtering, and feedback compensation inside a single agency-qualified brick. The Maxi family is the mid-power tier of Vicor's brick platform (above Mini and below Mega), targeting the 200 W to 800 W range with peak efficiencies above 86%. Key electrical specifications include a 28 V nominal output (programmable from 2.8 V to 30.8 V per datasheet), 600 W maximum output power, and a wide 250 V to 425 V input window that maps directly onto 380 V PFC front-end rails in three-phase industrial systems. Line and load regulation are specified at ±0.25% from no load to full load, the module withstands 500 V input surges for 100 ms, and the through-hole Full Brick footprint provides a thermally conductive baseplate rated for -40 °C to +100 °C operation with forced air or conduction cooling. Architecturally, the converter uses a zero-current-switching quasi-resonant topology with Vicor's proprietary secondary-side control, which keeps the output ripple low without external LC filtering and simplifies paralleling. The high switching frequency (typically several hundred kHz) is decoupled from the input-to-output path by the internal transformer, eliminating the common-mode / differential-mode choke design work that bulk discrete regulators usually demand. Typical applications include industrial automation PLC backplanes fed from 380 V three-phase buses, telecom BTS and access-node 24 V/28 V distribution, railway auxiliary and rolling-stock power, ATE and semiconductor test rack power, and high-power LED drivers. The 28 V rail is also widely used as an intermediate bus for downstream point-of-load converters in computing and defense platforms. When designing with this module, allocate a flat copper pad or forced-air path for the baseplate: the module dissipates roughly 14% of output power at full load (about 80-100 W) and must reject that heat through its baseplate rather than through the pins. Follow Vicor's recommended inrush and hold-up circuitry to keep within the 500 V transient rating, and observe creepage / clearance distances on the primary side to maintain the input-to-isolation voltage rating specified in the datasheet. This page synthesizes distributor pricing, drop-in same-package variants from the same Vicor Maxi family, and practical design notes that complement - and go beyond - what appears in the manufacturer's datasheet page.
V375A28T600BL - 600W 28V Maxi DC-DC Converter | Vicor
The Vicor V375A28T600BL is an isolated, through-hole DC-DC converter module from the Maxi family delivering 28 V at 21.4 A (600 W) from a nominal 375 V input bus (250 V to 425 V range). Housed in Vicor's industry-standard full-size Maxi brick form factor with 9 through-hole terminals in a rectangular DFM package, this T-grade (industrial, -40C to +100C) module targets high-voltage distribution rails in industrial, railway, defense, and process-control equipment where galvanic isolation is mandatory. An isolated DC-DC converter module is a sealed brick-style power building block that converts one DC voltage to another while providing galvanic isolation between input and output. Within the broader power-supply hierarchy, this places it above discrete buck/boost converters and below full AC-DC supplies; isolated modules sit in the power conversion category alongside non-isolated POL converters. The V375A28T600BL's nominal 375 V input makes it well suited to rectified 3-phase 208/240/400 VAC front ends commonly used in industrial motor drives, photovoltaic inverters, and traction auxiliary power systems that require a stable, isolated low-voltage rail for downstream logic, sensors, and gate drivers. Key features include 600 W continuous output power, a single regulated 28 V output (21.4 A), 4:1 input range of 250 V to 425 V, fixed 250 V to 425 V input window, and a Vicor-compatible through-hole pinout that drops into standard Maxi-series sockets and PCB layouts. The T-grade temperature rating of -40C to +100C baseplate supports harsh industrial and outdoor environments, and the rectangular DFM package provides mechanical robustness with a thermal-management baseplate intended for heatsink or cold-plate mounting. Internally, the module uses Vicor's high-frequency zero-current-switching (ZCS) and zero-voltage-switching (ZVS) topology to achieve high efficiency (~89% typical) and low EMI relative to hard-switched converters. The integrated planar magnetics and surface-mount control circuits are housed in a single encapsulated brick, eliminating the need for external inductors, transformers, or feedback components and dramatically simplifying EMI qualification versus discrete designs. This architecture trades greater baseplate thermal dissipation for design simplicity. Typical applications include 24 V industrial bus power for PLCs and motor drives, railway auxiliary power systems, defense and aerospace power conditioning, photovoltaic inverter auxiliary rails, semiconductor-fabrication equipment, and high-voltage battery management front ends. The 28 V output is directly compatible with 24 V industrial bus standards (with margin) and with 28 VDC aerospace/military power bus standards (MIL-STD-704). When designing with this part, allocate adequate baseplate cooling - at 600 W and ~89% efficiency roughly 75 W is dissipated as heat, which requires a forced-air heatsink or cold-plate to keep baseplate below 100C. Confirm that the host PCB layout accepts the standard Maxi through-hole footprint and that the upstream front-end provides inrush limiting, since the input capacitance of the module is substantial at the rated 425 V maximum. This page synthesizes distributor pricing, engineering-grade alternatives, and practical design notes not found in the manufacturer datasheet alone.
V375A36C400BF2 - 36V/11.1A Isolated DC-DC Module 400W | Vicor
The Vicor V375A36C400BF2 is an isolated, through-hole DC-DC converter module from Vicor's Maxi/Mini family delivering a regulated 36 V output at up to 11.1 A (400 W) from a wide 250 V to 425 V DC input bus. Housed in Vicor's classic 'Full Brick' package, it accepts the nominal 375 V industrial high-voltage DC bus commonly used in 3-phase rectified and 380 V-class factory power systems. The module provides 4250 VDC isolation between input and output per the Vicor datasheet and supports a programmable output voltage range of approximately 0 to 110% of nominal via the trim pin. An isolated DC-DC converter module is a fully encapsulated switching power supply that takes an unregulated high-voltage DC rail and produces a regulated, galvanically-isolated low-voltage DC output. In the broader power conversion hierarchy, this device sits as a 'brick converter' under the DC-DC Converter > Power Module > Power Management IC taxonomy. Brick modules are favored for distributed power architectures in industrial, railway, defense, and telecom equipment because the isolation barrier, filtering, regulation, and protective features are integrated into a single, agency-recognized package. Key features include ultra-wide 250 V to 425 V input range, programmable output to 110% of nominal, ±0.25% line/load regulation from no load to full load, 500 V transient surge withstand on the input, and industry-standard brick pinout. The Maxi/Mini platform is also parallelable with N+M fault tolerance for higher-power or redundant operation, and auxiliary features such as remote sense and INHIBIT/ENABLE simplify integration into larger power systems. Technically, the module uses Vicor's proprietary zero-current-switching (ZCS) zero-voltage-switching (ZVS) fixed-frequency topology to achieve high efficiency (typically 84-87% at 36V/400W full load) and low EMI signature compared to hard-switched designs. The internal current-mode control loop, combined with feed-forward input voltage compensation, holds output regulation within ±0.25% across the full specified input range and load step transients - a level of accuracy rarely achieved by open-loop module designs. Typical applications of the V375A36C400BF2 include industrial 3-phase 380 VDC bus power systems, railway rolling-stock auxiliary supplies, high-voltage battery-fed telecom equipment, semiconductor test instrumentation, and any system that converts a high-voltage DC link into an isolated 36 V intermediate bus. The wide input range also makes it compatible with 400 V-class nominal PFC output stages found in three-phase UPS and energy-storage inverters. When designing with this part, always observe the 4250 VDC isolation rating and route high-voltage traces with appropriate clearance per IEC/UL 60950-1 or IEC 62368-1, provide a minimum 50 CFM airflow for full 400 W output, and verify baseplate temperature stays below 100 °C under worst-case conditions. According to the Vicor datasheet, the trim pin can adjust output from 0% to 110% of nominal, but operation below 50% Vout reduces regulation accuracy - this page synthesizes distributor pricing, brick-converter drop-in alternatives, and thermal/PCB design guidance beyond what is found in the manufacturer datasheet.
V375A36C400BL - 400W 36V Maxi DC-DC Converter | Vicor
The Vicor V375A36C400BL is a Maxi-series isolated DC-DC converter module that delivers 36 V at 11.11 A (400 W) from a wide 250 V to 425 V DC input bus, packaged in a Vicor full-brick through-hole module. It is a member of Vicor's legacy Maxi family and provides a regulated output with up to 89% efficiency at full load, supporting operation up to a 100 °C baseplate temperature. A DC-DC converter (switch-mode converter) is a power-electronics module that converts one DC voltage level to another with high efficiency using PWM switching and a magnetic/transformer isolation barrier. In the power-component taxonomy, V375A36C400BL sits as: isolated DC-DC converter -> brick module -> point-of-load power -> power management. Unlike a non-isolated point-of-load regulator (POL), this device provides 2500 V DC isolation, allowing the 36 V output to float with respect to the high-voltage input bus, which is essential when feeding downstream user-side circuits from a rectified 380 V rectified industrial bus or 400 V datacenter HVDC distribution. Key features of the V375A36C400BL include ±0.25% load regulation from no-load to full-load, programmable output voltage from 10% to 110% of nominal (≈3.6 V to 39.6 V), an input surge withstand rating of 500 V for 100 ms, and a wide operating temperature with full-rated output up to 100 °C. The module also integrates over-current, over-voltage, and over-temperature protection with auto-recovery, simplifying upstream fuse and fault-tree design. The V375A36C400BL uses Vicor's proprietary zero-current-switching (ZCS) fixed-frequency architecture in the Maxi brick. The ZCS topology reduces switching losses and EMI compared with hard-switched converters, which is why the module achieves up to 89% efficiency at 375 V nominal input. Internal thermal management routes heat to the baseplate, enabling conduction cooling (cold-plate mounting) or forced-air cooling for high-density industrial designs. Typical applications for the V375A36C400BL include factory automation 36 V bus supplies, industrial equipment powered from 380 V three-phase rectified mains, semiconductor test and burn-in systems, and military/aerospace ground equipment requiring isolated 28 V / 36 V intermediate buses. Other common uses are railway signaling converters, battery-energy storage pre-regulators, and high-power LED driver front-ends. When designing with this part, ensure that the input bus has appropriate inrush limiting and that the baseplate is properly mounted to a heatsink or cold plate. Vicor's Maxi modules require the output load to remain within the Safe Operating Area; the enable/inhibit pin and trim pin must be configured per the manufacturer's datasheet before applying full power. This page synthesizes distributor pricing, drop-in replacement guidance across Vicor's Maxi/Mini/Micro families, and practical thermal/PCB layout notes not aggregated in a single datasheet - useful to engineers and procurement alike.
V375A36T400BG - 36V 400W Maxi DC-DC Converter | Vicor
The Vicor V375A36T400BG is a 400W isolated DC-DC converter module in the Maxi family, delivering a single regulated 36V output at up to 11.11A from a wide 250V to 425V DC input range. Housed in Vicor's industry-standard Full Brick through-hole package, the converter targets industrial, ATE, and high-voltage distributed power applications where a compact, isolated 36V intermediate bus is required. What is an isolated DC-DC converter? An isolated DC-DC converter is a power module that transfers electrical energy between a DC input and one or more DC outputs while providing galvanic isolation through a high-frequency transformer. The isolation barrier (here rated at 425V+ typical) protects downstream circuitry from input-side faults, eliminates ground loops, and allows the output to be referenced to a different potential. Isolated modules like the V375A36T400BG sit above non-isolated point-of-load regulators in the power management taxonomy: DC-DC converter -> isolated DC-DC module -> power supply -> power management IC -> semiconductor. Key features include a 36V nominal output (programmable to 110% per Vicor Maxi family specification), 400W continuous output power, 250V to 425V input range with 500V surge withstand capability, and ±0.25% load regulation from no-load to full-load. The module achieves 11.11A output current at 36V, enabling direct powering of downstream point-of-load converters, motor drivers, or industrial subsystems. Through-hole mounting on a Full Brick footprint simplifies thermal management and high-current PCB routing. The V375A36T400BG uses Vicor's proprietary high-frequency zero-voltage-switching (ZVS) topology, which lowers switching losses and allows high power density in the Maxi package. Its control loop, combined with the high-bandwidth isolation transformer, delivers tight output regulation even under large load transients typical of industrial automation and semiconductor test equipment. Internal input surge protection rated at 500V for 100 ms further hardens the module against bus transients. Typical applications include industrial 380V three-phase derived DC buses, automated test equipment (ATE) requiring 36V intermediate rails, high-voltage battery management systems, traction and auxiliary power in rail/energy systems, and as a front-end converter feeding non-isolated PoL regulators. The wide input range also makes it suitable for 400V-class rectified PFC outputs. When designing with this module, ensure adequate airflow or cold-plate cooling at 400W. Maintain minimum 425V-rated cabling and follow Vicor recommended input fuse and Y-cap values for EMI compliance. Always check the Maxi datasheet for derating curves above 70C ambient. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
V375A36T400BL - 400W 36V Isolated DC-DC Converter | Vicor
The Vicor V375A36T400BL is a 400W isolated through-hole DC-DC converter module producing a regulated 36V output from a wide 250V-425V DC input bus, housed in Vicor's proprietary Maxi/Mini brick through-hole package. An isolated DC-DC converter is a switched-mode power module that uses a high-frequency transformer to provide galvanic isolation between input and output while stepping a high-voltage DC bus down to a lower voltage rail. Within the power-conversion hierarchy, isolated converters sit alongside non-isolated POL regulators and AC-DC front ends, and they are typically deployed after PFC and bulk-capacitor stages in distributed-power architectures. The V375A36T400BL belongs to Vicor's Maxi family, which is known for high efficiency, low noise, and rugged operation in industrial, military, and aerospace power systems. Key specifications include an output current of 11.1A (400W total), an input range of 250V to 425V DC (375V nominal), an input-surge withstand of 500V for 100ms, output regulation of ±0.35% no-load to full-load, and high-speed MOSFET switching topology. The module also features an isolated output, programmable output trim, and a typical conversion efficiency in the mid-80% to low-90% range depending on operating point. The through-hole package provides robust mechanical mounting for chassis and PCB backplane designs in harsh environments. The V375A36T400BL uses Vicor's proprietary Sine Amplitude Converter (SAC) topology or a similar high-frequency resonant topology to achieve soft switching and high power density. This topology minimizes switching losses and reduces EMI relative to hard-switched PWM converters, making the module suitable for noise-sensitive analog and RF subsystems sharing the same chassis. Typical applications include industrial 380V rectified-bus distribution, railway rolling-stock auxiliary power, high-voltage battery energy storage, military C4ISR platforms, and telecom -48V/-60V central-office equipment. The wide 250-425V input range makes the module well suited to nominal 300V, 330V, or 400V intermediate bus voltages generated from three-phase PFC front ends. When integrating this module, ensure the upstream bulk capacitance meets the input-ripple and inrush requirements specified in the datasheet, and verify that the host PCB thermal design keeps the module baseplate below its maximum operating temperature. This page synthesizes distributor stock and pricing, parametric alternatives, and practical thermal/PCB design notes not found in the standalone manufacturer datasheet.
V375A48C600BF - 600W 48V Isolated DC/DC Maxi Module | Vicor
The Vicor V375A48C600BF is a 600 W isolated DC-DC converter module from the Vicor Maxi family, accepting a wide 250 V to 425 V DC input range (375 V nominal) and producing a regulated 48 V output at up to 12.5 A. Housed in Vicor's industry-standard Maxi brick package (through-hole, full-size brick with mounting flanges), it delivers a programmable output range of 4.8 V to 52.8 V (10–110 % of nominal) and provides 500 V of input surge withstand capability. The module carries 425 V reinforced isolation between input and output, making it suitable for industrial, railway, defense, and high-voltage battery-fed applications. An isolated DC-DC converter is a power-module building block that accepts a DC voltage on the input side, galvanically isolates it via a transformer, and produces one or more DC rails on the output side. The Maxi family sits within Vicor's brick-converter hierarchy (Junior, Mini, Maxi, Micro) and is targeted at 200-400 W+ output levels where PCB-area-per-watt efficiency and thermal performance matter more than a discrete switching regulator. The isolation barrier also breaks ground loops and lets the output reference shift freely relative to the input bus. Key specifications include ±0.25 % line/load regulation from no load to full load, a wide operating temperature range of -20 °C to +100 °C, and high efficiency typical of Vicor's zero-current-switching (ZCS) topology. The module integrates filtering, soft-start, and overtemperature protection, and its output trim pin (TRIM) lets designers adjust Vout between 4.8 V and 52.8 V without changing the transformer ratio. Technically, the V375A48C600BF uses a fixed-ratio, high-frequency ZCS forward converter topology that switches at a fixed frequency and uses the inherent resonance of the transformer magnetics to switch at zero current, dramatically reducing switching losses and EMI. This topology enables the wide input range while keeping the magnetics small and the converter efficiency high, which directly shrinks the heatsink requirements. Typical applications include 380 V industrial bus DC-DC conversion, railway traction auxiliary supplies, high-voltage battery systems in electric vehicles, industrial motor drives, semiconductor test equipment, and military/aerospace power systems where 28 V or 48 V rails are derived from a high-voltage DC bus. Design consideration: always size the input fuse and bus capacitance per Vicor's Maxi datasheet, and respect the derating curve above 70 °C baseplate temperature. The 'B' grade variant (BF) typically denotes the industrial operating-temperature grade versus the military-grade suffix used elsewhere in the family. This page synthesizes distributor pricing, parametric same-package drop-in alternatives (BF/BG/BK suffixes), and practical design notes not found in the bare manufacturer datasheet, helping sourcing engineers compare options without swapping the PCB footprint.
V375A48E600BN3 - 600W 48V Maxi Series Isolated DC-DC | Vicor
The Vicor V375A48E600BN3 is a 600W isolated DC-DC converter module from Vicor's Maxi series, delivering a nominal 48V output at up to 12.5A from a wide 250V to 425V DC input bus. Housed in Vicor's through-hole Maxi brick package, it integrates advanced power processing, control, and packaging to provide the performance, flexibility, and reliability expected of a mature power component for high-voltage distributed power architectures. A DC-DC converter module is a self-contained switched-mode power building block that converts one DC voltage to another, typically providing galvanic isolation between source and load. Within the broader taxonomy, this part is an intermediate-bus or distributed-bus converter (brick converter) within the power management IC and module family, optimized for 380V nominal rectified industrial bus rails. Its role is to step down high-voltage DC while delivering a regulated, isolated, low-voltage rail to downstream point-of-load converters or directly to system loads. Key features include an input surge withstand rating of 500V for 100 ms, an output programmable from 10% to 110% of nominal (4.8V to 52.8V), regulation of ±0.25% from no load to full load, and a maximum output power of 600W. The module supports a wide operating temperature range of -10C to +100C at the baseplate. Its 425V-rated isolated topology provides reinforced safety isolation between the high-voltage input bus and the user-accessible low-voltage output. Technically, the V375A48E600BN3 uses a proprietary zero-current-switching / zero-voltage-switching topology with Vicor's planar magnetic structure, achieving high efficiency and low EMI in a brick-format footprint. The E-grade variant denotes an enhanced-baseplate/through-hole package option designed for chassis-mount and conduction-cooled applications, with a 9-pin terminal layout for input, output, sense, trim, and enable functions. Typical applications include industrial 380V rectified-bus power systems, factory automation, motor drives, high-voltage LED lighting, and railway/traction auxiliary power. The wide input range also makes it suitable for 400V-class EV traction auxiliary rails and renewable-energy inverter auxiliary supplies. When designing with this module, ensure the source bus provides the inrush energy expected by the input capacitor bank and respect the baseplate temperature limits. Use Vicor's recommended input fuse, hold-up, and Pi-filter networks to meet surge-withstand and conducted EMI requirements. This page synthesizes distributor pricing, drop-in Vicor Maxi-series alternatives, and practical design notes not consolidated in the manufacturer datasheet, giving engineers a faster path to part selection, sourcing, and EMC-ready layout.
VE-920244B - 24V 400W Isolated DC-DC Converter Module | Vicor
The Vicor VE-920244B is a 400W isolated DC-DC converter module delivering a regulated 24V output at up to 16.6A from a wide-range DC input, housed in Vicor's industry-standard VI-200 / VE-200 through-hole package form factor. The module integrates Vicor's proprietary zero-current-switching (ZCS) / zero-voltage-switching (ZVS) forward converter topology, providing high efficiency (>90% typical) and low-noise operation suitable for distributed power architectures. An isolated DC-DC converter is a power conversion device that transfers electrical energy between a DC input source and a DC output load while providing galvanic isolation, typically through a high-frequency transformer. Within the broader power management hierarchy, isolated DC-DC converters sit alongside non-isolated POL (point-of-load) regulators, LDOs, and DC-DC switching converters. They are essential in systems where safety isolation, ground loop elimination, or voltage level translation between domains is required. Vicor's VE-200 family occupies a leadership position in brick-style isolated converter modules used in defense, industrial, and high-end commercial applications. Key specifications of the VE-920244B include 24V nominal output voltage, 16.6A continuous output current (400W total), and a wide input voltage range supporting 24V / 48V nominal bus systems. The module operates across an extended temperature range suitable for industrial and military environments and provides input undervoltage lockout, output overcurrent protection, and overtemperature shutdown. The through-hole mounting form factor supports robust mechanical attachment for high-vibration applications. The VE-920244B utilizes Vicor's VI-HARM (Harmonic Attenuation Reaction Module) technology in related variants and benefits from the company's high-density power packaging. The converter's fixed switching frequency and proprietary control architecture minimize EMI signature, while the planar magnetic construction delivers consistent performance across temperature extremes. Engineers value the Vicor VE-200 series for its predictable behavior, comprehensive protection features, and long-term availability for military and aerospace programs. Typical applications include industrial automation systems, telecommunications infrastructure, military and aerospace power systems, railway and transportation electronics, distributed power architectures in 24V/48V bus systems, and process control equipment requiring galvanic isolation between sensitive control circuitry and field-side power domains. When designing with the VE-920244B, ensure adequate heatsinking through the baseplate and observe the derating curves provided in the Vicor datasheet. Input fusing and output filtering recommendations should be followed to meet system-level EMI and surge requirements. The module requires a minimum load to maintain regulation; verify this against your specific operating profile. This page consolidates verified distributor pricing, parametric alternatives, and practical design guidance for the VE-920244B - synthesizing engineering information not aggregated in the manufacturer datasheet alone.
VI-920363B - Vicor VI-200 Isolated DC/DC Converter Module
The Vicor VI-920363B is a member of the VI-200 family of isolated, board-mount DC/DC converter modules, housed in a Vicor full-brick package with through-hole mounting. It accepts a wide 200 V to 400 V DC input range and provides an isolated, regulated output suitable for industrial, defense, and aerospace point-of-load applications where a stable intermediate bus is required. A DC/DC converter module is a self-contained switching power supply building block that converts one DC voltage level to another while providing galvanic isolation between input and output. The VI-200 family operates at switching frequencies up to 2 MHz and is positioned within Vicor's broader power component hierarchy: isolated brick module -> board-mount DC/DC converter -> point-of-load converter -> power management IC. This modular approach lets system architects add isolated voltage rails without designing magnetics, snubbers, or feedback loops from scratch. Key features include high power density (the VI-200 brick form factor delivers up to 100 W per module at >85% typical efficiency), under-voltage lockout, over-current and over-temperature protection, and a remote on/off control pin. The module supports paralleling with booster variants (VI-Bxx) to scale output power into the kilowatt range, and operates across the standard -40C to +85C industrial temperature range with appropriate derating. From an architectural standpoint, the VI-920363B uses Vicor's proprietary zero-current-switching (ZCS) topology in a forward-converter arrangement, which reduces switching losses and EMI relative to hard-switched PWM converters. The high switching frequency shrinks the input/output filter components, allowing the module to deliver clean output with low ripple while occupying minimal PCB real estate. Typical applications include industrial 24V/48V bus systems, distributed power architectures in telecom and railway electronics, defense avionics, and high-voltage laboratory instrumentation. The wide input range tolerates rectified 230 VAC or 270 VDC nominal rails directly. When designing with this module, observe Vicor's recommended input fuse, input hold-up capacitance, and PCB land pattern guidelines. Last-time-buy orders must be placed by November 3, 2023, so any new design activity should select a current-production Vicor module instead. This page synthesizes the verified PCN data, distributor listings, and known parametric limits of the VI-200 family into a single reference that goes beyond what appears on any one distributor page.
VIPER16LDTR - 800V Offline SMPS Converter, 60kHz, 16-SO | STMicroelectronics
The STMicroelectronics VIPER16LDTR is an off-line AC/DC converter integrating an 800 V avalanche-rugged power MOSFET with a fixed-frequency PWM current-mode controller in a 16-pin SO (SOIC-16) package. It supports buck, buck-boost, and flyback topologies with a switching frequency of 60 kHz and is optimized for universal-input mains applications from 85 VAC to 265 VAC. An AC/DC converter (offline switcher) is a power-supply IC that takes the rectified mains voltage directly and steps it down to an isolated or non-isolated DC rail, replacing bulky 50/60 Hz transformer designs in low-power adapters. VIPerPlus parts sit in the hierarchy of power management ICs, specifically inside the offline-switcher and high-voltage integrated-converter category, and compete with Power Integrations LinkSwitch/TinySwitch families and onsemi NCP10xx series. Key features include 800 V drain-to-source avalanche-rugged power section, fixed 60 kHz PWM operation with frequency jittering for low EMI, user-defined overcurrent limit, an internal soft-start block, and comprehensive protection against overcurrent, overload, and over-temperature conditions. The converter's burst-mode operation at light loads maintains high efficiency across the full load range. Frequency jittering reduces EMI peaks by typically 5-10 dB, simplifying compliance with EN55022 class B without complex filtering. The VIPER16LDTR uses a current-mode control architecture that simplifies the feedback loop and provides inherent cycle-by-cycle overcurrent protection. The integrated 800 V avalanche-rugged MOSFET eliminates the need for an external high-voltage switch, and the embedded auto-restart protection reduces external component count. The 16-pin SO package has a thermal pad suitable for moderate-power 5-12 W adapter designs, with the exposed pad enhancing heat dissipation. Typical applications include low-power AC/DC adapters for white goods and consumer electronics, auxiliary supplies for industrial equipment, smart metering and IoT smart-home nodes, LED lighting drivers, and standby or auxiliary power for major appliances. The wide 85-265 VAC input range makes it suitable for global products without regional SKU variants. Design consideration: a snubber network (RCD) across the transformer primary is mandatory for reliability and to keep the drain voltage below the 800 V avalanche rating under worst-case line and load transients. Verify transformer leakage inductance carefully because excessive leakage causes drain-voltage spikes that shorten device lifetime. This page synthesizes distributor pricing, drop-in alternatives from the VIPerPlus family and cross-brand equivalents, and practical flyback design notes that go beyond the information in the manufacturer datasheet.
VIPER22ADIP - 12W Offline Switching Regulator | STMicroelectronics
The STMicroelectronics VIPER22ADIP is a monolithic offline switching regulator that integrates a 730V avalanche-rugged Power MOSFET and a PWM controller in a single 8-pin DIP package. It delivers up to 12W of output power in a wide-input AC/DC power supply, making it ideal for low-power applications such as battery chargers, standby power supplies, and auxiliary power rails. The device operates from an input voltage range of 85VAC to 265VAC, with a fixed 60kHz switching frequency and a current-mode control architecture that ensures stable operation and fast transient response. An offline switching regulator, also known as a switched-mode power supply (SMPS) controller, is a device that converts AC mains voltage directly to a regulated DC output without the need for a bulky line-frequency transformer. The VIPER22ADIP belongs to the family of integrated power switches, which combine the power transistor and control circuitry on a single die, reducing component count and simplifying PCB layout. This integration is part of the broader category of power management ICs, which are essential for efficient energy conversion in modern electronic systems. Key features of the VIPER22ADIP include a 730V avalanche-rugged Power MOSFET, a 60kHz fixed switching frequency, and a standby power consumption of less than 0.5W at no load. The device also offers overcurrent, overvoltage, and thermal shutdown protection, ensuring reliable operation in harsh environments. The 8-pin DIP package provides excellent thermal performance, with a junction-to-ambient thermal resistance of 80°C/W, allowing for compact designs without external heatsinks at moderate power levels. The VIPER22ADIP uses a current-mode PWM control architecture with a built-in high-voltage startup circuit, which eliminates the need for an external startup resistor and reduces power loss. The device also features a frequency jittering function that spreads the EMI spectrum, simplifying filter design and helping to meet EMC standards. The integrated Power MOSFET has a low on-resistance of 13Ω, minimizing conduction losses and improving overall efficiency. Typical applications include AC/DC adapters for consumer electronics, standby power supplies for TVs and monitors, auxiliary power supplies for industrial equipment, and battery chargers. The wide input voltage range and robust protection features make it suitable for global markets with varying mains voltages. When designing with the VIPER22ADIP, ensure proper transformer design and snubber circuitry to minimize voltage spikes and EMI. The feedback loop should be carefully compensated to maintain stability across the full load range. The device's thermal shutdown protection requires adequate PCB copper area for heat dissipation, especially at higher output power levels.