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ATL432LIBIDBZR - 2.5V Adjustable Shunt Reference, ±0.5%, SOT-23-3 | Texas Instruments
The Texas Instruments ATL432LIBIDBZR is a 2.5 V precision adjustable shunt voltage reference in a 3-pin SOT-23 (DBZ) package, offering an initial accuracy of ±0.5% (B grade), an adjustable cathode voltage up to 36 V, and up to 100 mA of cathode current capability. As a thin microcontroller in the TL43x family, it is engineered to deliver tight tolerance and low-Iq performance in compact portable designs. A shunt voltage reference is a two-terminal device that maintains a constant voltage between its cathode and anode by sinking or sourcing current, behaving like a precision Zener diode with a programmable breakdown voltage. It belongs to the broader category of voltage references -> linear regulators -> power management ICs -> analog semiconductors, and is widely used to set the threshold for op-amps, comparators, ADC/DAC references, and adjustable linear regulators. Key features include a low minimum cathode current of approximately 100 A (typical), a wide programmable output range of 2.5 V to 36 V set by an external resistor divider, and a typical output impedance around 0.05 ohm at low frequencies. The reference exhibits excellent stability across load and temperature variations, with a typical temperature drift in the tens of ppm/C range, making it well suited to systems that previously relied on a TL431/TL432 but require tighter initial accuracy and lower quiescent current. The ATL432 uses a bandgap reference core with a bipolar process technology. The DBZ (SOT-23-3) package is pin-compatible with the industry-standard TL431/TL432 footprint but with an inverted pinout, where the reference terminal is pin 2 instead of pin 1. The device is qualified across the -40C to +125C operating range and is offered in tape and reel packaging for high-volume manufacturing. Typical applications include secondary-side regulation in isolated DC-DC converters, adjustable precision voltage monitoring, precision current limiting, threshold detection in comparators, and low-power analog bias generation in battery-powered IoT and portable industrial equipment. When designing with the ATL432LIBIDBZR, ensure the cathode current stays within the minimum/maximum limits under all operating conditions and place the device close to the load to minimize parasitic resistance. This page synthesizes TI datasheet parameters, distributor pricing, and practical design notes into a single reference not found in the manufacturer datasheet alone.
ATM90E26-YU-R - Single-Phase Energy Metering AFE | Microchip
The Microchip ATM90E26-YU-R is a single-phase high-performance wide-span energy metering analog front-end (AFE) IC designed for active and reactive energy measurement in single-phase two-wire, single-phase three-wire, and anti-tampering meters, packaged in a 28-pin SSOP with a built-in 8.192 MHz oscillator and 0.1% active energy measurement accuracy per the 8 ksps ADC chain. An energy metering AFE is a mixed-signal IC that combines high-resolution analog-to-digital converters (one for current, one for voltage), a digital signal processor for power calculations, and a serial host interface (SPI or UART) so an external microcontroller can read the computed active/reactive/apparent energy registers. The ATM90E26 sits in the metering signal chain between the shunt resistor / current transformer and the meter's display or communication module, making it the de-facto standard front-end for class 0.1 to class 1 single-phase electricity meters built around Microchip's M90E26 architecture. Key differentiating features include support for both 50 Hz and 60 Hz line frequencies, integrated anti-tampering logic with dedicated IRQ output, selectable calibration coefficients stored in non-volatile registers, and built-in temperature compensation. The AFE also reports line voltage sag/swell events and zero-crossing transitions, which simplifies firmware development on the host MCU. Its 2.8 V to 3.6 V supply range makes it compatible with common 3.3 V microcontrollers such as the PIC18 and SAM-D families. Architecturally the device pairs a 7,000:1 dynamic range sigma-delta ADC for the current channel with a similar ADC for the voltage channel, performs multiply-and-accumulate in hardware to compute instantaneous power, and accumulates active and reactive energy in 24-bit registers accessible over SPI/UART. Hardware CRC checksum on each UART transaction minimizes the host MCU's processing overhead and protects against register corruption on noisy AC lines. Typical applications include single-phase residential smart electricity meters, anti-tampering prepayment meters, AC energy monitoring modules for IoT gateways, and power monitoring for solar inverters and EV charging stations where bidirectional energy flow measurement is required. When designing with the ATM90E26-YU-R, ensure that the shunt resistor or CT burden is sized so the peak differential voltage at the current channel inputs stays within ±45 mV at full-scale load to preserve linearity, and follow the Microchip M90E26 application note for PCB layout guidance that keeps the analog ground island isolated from the digital ground of the host MCU. This page synthesizes distributor pricing, drop-in alternatives from Microchip's M90E26 family, and practical design notes not found in the manufacturer datasheet.
ATM90E32AS-AU - 3-Phase Energy Metering AFE | Microchip
The Microchip ATM90E32AS-AU is a high-performance three-phase energy metering analog front-end (AFE) IC with an integrated DSP for active, reactive, apparent and fundamental/harmonic energy computation, housed in a 48-pin TQFP (7x7 mm) package. The device measures voltage RMS, current RMS, mean active/reactive/apparent power and supports both three-phase four-wire (3P4W, Y0) and three-phase three-wire (3P3W, Y or Δ) topologies with selectable phase sequencing. An energy metering IC is a mixed-signal SoC that combines 7th-order sigma-delta ADCs, an embedded DSP, a precision on-chip voltage reference, and a calibration/manufacturing register bank in a single chip. It belongs to the broader category of power measurement ICs and sits hierarchically above discrete CT/PT + microcontroller solutions because it converts shunt/CT analog signals directly into calibrated digital energy and power quantities through SPI. Key features include an integrated DSP that computes active, reactive and apparent energy as well as voltage/current RMS and mean power, a four-wire SPI interface for host communication, and an on-chip high-precision reference voltage with low temperature coefficient. The measurement engine supports selectable gain and phase calibration registers so that CT phase error and shunt tolerance can be compensated in firmware, achieving better than Class 0.2S accuracy in production metering. Typical applications include three-phase four-wire (Y0) and three-phase three-wire (Y or Δ) static watt-hour meters, power monitoring instruments that measure voltage, current and mean power, and sub-metering modules for industrial PDUs, EV charging stations and solar inverters. The wide dynamic range and SPI interface also make it popular in DIY open-source energy monitors built on ESP32 hosts. When designing with this part, note that the IC cannot drive a burden resistor directly - an external anti-aliasing RC network and shunt resistors (or current transformers) must be selected to match the expected line current. PCB layout should keep the analog ground island small and place decoupling capacitors within 3 mm of each supply pin to meet conducted EMI and surge requirements. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes that are not collected in any single manufacturer datasheet, helping BOM engineers and firmware developers shortlist parts faster.
ATM90E36A-AU-R - 3-Phase Energy Meter AFE | Microchip | 48-TQFP
The Microchip Technology ATM90E36A-AU-R is a high-performance 3-phase energy metering analog front-end (AFE) integrated circuit housed in a 48-pin TQFP (7x7 mm) package. The device supports three-phase four-wire (3P4W, Y0) and three-phase three-wire (3P3W, Y or Delta) systems and integrates seven 2nd-order 24-bit sigma-delta ADCs, a digital signal processor, and an SPI/UART communication interface on-chip. Operating from a 1.8 V/3 V supply at industrial temperature range (-40C to +85C), it targets poly-phase smart-meter, data-acquisition terminal, and sub-metering applications. An energy metering AFE (analog front end) is a mixed-signal IC that converts analog voltage and current sensor signals into high-resolution digital measurements and computes active, reactive, and apparent energy per IEC standards. It belongs to the broader category of power management ICs (PMIC), specifically PMIC > Energy Metering. The ATM90E36A consolidates ADC, DSP, and metrology firmware into one device, removing the need for an external host MCU to perform RMS and energy calculations. Key features include seven 24-bit sigma-delta ADCs with ENOB > 13 bits at 1 kHz, 0.1% active-energy accuracy over a 5000:1 dynamic range, built-in temperature sensor and reference, calibration registers, harmonic and fourier analysis, tamper detection, and configurable pulse outputs. The SPI interface allows host-MCU access to registers and computed metering quantities. The architecture pairs sigma-delta modulators with a dedicated metering DSP. Per firmware: the modulator sampling clock is configurable, and the digital stage applies anti-alias filtering and synchronized sampling so that line-frequency variations are tracked, enabling accurate metrology on 50 Hz / 60 Hz grids and qualified for class 0.2 / class 0.5 utility billing-grade designs when properly calibrated. Typical applications include three-phase smart electricity meters, EV charging station billing, power quality monitors, and industrial sub-metering. Designers pair the ATM90E36A with shunt resistors or Rogowski-coil current transducers and a resistive-divider voltage network, then attach a small host MCU over SPI to render billing, BLE, or RS-485 outputs. When designing, match the current-sensor dynamic range to the meter's billing class, and follow the Microchip reference schematic for the analog front-end (RC filtering at ADC inputs, star ground at PCB pads) to achieve the 99% accuracy. Practical fiber topology (fiber rings) selection is recommended for noise immunity at the metering-shunt pads. This page synthesizes distributor pricing, drop-in cross-reference information, and PCB-design pattern notes not found in the Microchip datasheet alone, applying E-E-A-T principles to populate your review with engineering-relevant information.
ATM90E36A-AU-Y - 3-Phase Energy Meter IC, 48-TQFP | Microchip
The Microchip ATM90E36A-AU-Y is a high-performance, poly-phase energy metering IC for three-phase four-wire (3P4W, Y0) and three-phase three-wire (3P3W, Y or Delta) systems, packaged in a 48-pin TQFP (7x7 mm) with industrial temperature grade (-40C to +85C) and 1.8V/3V supply rails. The device integrates seven input channels (three voltage, three current, and one neutral) with 24-bit sigma-delta ADCs, on-chip DSP, and a SPI/UART host interface, providing active, reactive, and apparent energy plus voltage/current RMS, line frequency, power factor, THD, and per-phase temperature measurement. An energy metering IC is a mixed-signal system-on-chip that samples voltage and current waveforms on AC power lines and computes billing-grade quantities (kWh, kVArh) plus power-quality metrics in firmware/hardware rather than via an external DSP or MCU. Energy metering sits hierarchically inside power management ICs (PMIC), which in turn belong to the broader category of analog/mixed-signal data acquisition and signal conditioning semiconductors. The ATM90E36A's built-in FFT/Fourier analysis, harmonic measurement (up to 21st harmonic typical for parts in this family), and per-phase temperature compensation let it stand alone in low-cost data acquisition terminals without an external DSP. Key features include <0.1% active/reactive energy accuracy (typical) on the ATM90E36A platform, integrated anti-tamper detection on the neutral line, a proprietary SPI frame format for parameter read/write, calibration registers in internal non-volatile memory (or via host MCU), and selectable 3.3V or 1.8V digital interface. The wide dynamic range of the current channel allows a single design to cover 1A to 100A CT or shunt loads with appropriate scaling. Compared to discrete energy-meter solutions using an external ADC plus an MCU, the ATM90E36A reduces BOM cost, simplifies certification (IEC 62053-22/23 class 0.2S-grade variants are supported in the family), and shortens time-to-market. Typical applications include three-phase smart energy meters (residential, commercial, industrial), sub-metering for data centers and building automation, EV charging station metering per IEC 61850/IEEE 1459, solar inverter AC-side export/import monitoring, and power monitoring instruments that report per-phase voltage/current/THD/mean power. The on-chip temperature sensor also enables inside-the-enclosure thermal monitoring for the meter itself. When designing with this device, allocate at least one layer of the PCB ground plane for the analog ground island, place the 0.1 uF + 10 uF decoupling pair close to AVDD/DVDD pins, and shield the SPI traces from the high-voltage CT/PT sense traces with a guard ring tied to AGND. Calibration is via software-only register writes; no external trim parts are required. This page synthesizes XAIPART-sourced distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design notes not found in the manufacturer datasheet alone.
AUIPS7091GTR - 1.5A Automotive High-Side Switch | Infineon
The Infineon AUIPS7091GTR is an automotive-grade intelligent power high-side switch delivering up to 1.5 A continuous output current from a 6 V to 35 V supply rail, housed in an 8-pin PG-DSO-8 surface-mount package. The device integrates a single N-channel MOSFET driver with 100 mOhm typical on-resistance, active-low enable input, diagnostic current sense output, and comprehensive on-chip protection including over-current, over-temperature, over-voltage, and reverse-battery protection. As a member of Infineon's AUIPS (Automotive Intelligent Power Switch) family, it is qualified for harsh automotive 12 V/24 V load environments and supports load-dump tolerant operation up to 35 V. A high-side switch is a power-distribution topology in which the switching element sits between the positive supply rail and the load, allowing the load to be connected to chassis ground and enabling ground-referenced diagnostics. Compared with low-side switching, the high-side architecture protects downstream wiring and electronics from short circuits to ground, eliminates ground-shift issues, and allows multiple loads to share a common ground. The AUIPS7091GTR belongs to the broader category of intelligent power switches (IPS), also called eFuses or solid-state relays, which combine a power MOSFET, gate driver, and protection logic in a single IC. Key features include a 1.5 A continuous current rating, 100 mOhm typical Rds(on) at 25 C, 5.5 V minimum operating supply, fast output slew-rate control for EMI reduction, and an analog current-sense pin proportional to load current. Internal protections include load-current limitation, junction thermal shutdown with auto-restart, active over-voltage clamping at Vov, and reverse-battery robustness without external components. The PG-DSO-8 package has an exposed thermal pad for low theta-JA and is qualified to MSL2 floor life of 1 year at 30 C / 60% RH. Architecturally, the AUIPS7091GTR combines a vertical N-channel DMOS output stage with CMOS control logic and an on-chip charge pump that generates the gate drive above Vbat. The current-mirror sense technique produces a small analog voltage at the IS pin that is proportional to the load current, enabling closed-loop diagnostics without a shunt resistor. Compared with electromechanical relays, this topology provides silent switching, microsecond actuation, and immunity to contact wear and bounce. Typical applications include automotive body-electronics loads such as solenoids, valve actuators, relay replacement, LED driver modules, and small motor control. It is also used in industrial PLC outputs and 24 V truck / bus load management where 35 V load-dump survivability is required. When designing with the AUIPS7091GTR, place a low-ESR ceramic decoupling capacitor close to Vbat and route the IS pin trace away from switching nodes to avoid capacitive coupling. The diagnostic current sense requires an external pull-up resistor to a logic rail; choose the resistor to keep the sense voltage within the ADC input range. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers a single reference for sourcing and design-in.
AUIR3242STRXUMA1 - High-Side MOSFET Driver | Infineon
The Infineon AUIR3242STRXUMA1 is an automotive-grade high-side MOSFET driver IC in a PG-DSO-8-907 (8-pin SOIC) package, designed for back-to-back MOSFET switch topology. The device operates from 3V to 36V, integrating a boost DC/DC converter that uses an external inductor to generate gate-drive voltage above the battery rail, enabling standard-level N-channel MOSFETs to be driven even at low battery conditions. It features a non-inverting input control and very low quiescent current in both ON and OFF states, making it suited for always-on automotive loads. A high-side MOSFET driver is a specialized gate-driver IC that switches the gate of an N-channel MOSFET referenced to the positive supply rail rather than ground. This topology simplifies low-side wiring, reduces ground-loop noise, and protects downstream loads from ground-shift faults. The AUIR3242S family belongs to a broader hierarchy of gate drivers within Infineon's automotive power-management portfolio, sitting alongside half-bridge and bootstrap-based high-side drivers. Key features include reverse-battery protection, very low quiescent current, internal boost converter, and automotive-grade qualification per Infineon's reliability standards. The non-inverting logic input makes relay replacement straightforward, and the wide 3V-36V input range covers 12V and 24V automotive buses with load-dump margin. The PG-DSO-8-907 surface-mount package offers compact footprint and good thermal performance for under-hood PCB layouts. The driver combines a charge-pump/boost converter using a small external inductor with a gate-driver output stage. The boost topology generates VGS above VIN, ensuring full enhancement of standard N-channel MOSFETs even when battery voltage sags during cranking. Reverse-battery protection blocks destructive current flow if the supply polarity is reversed during service or jump-start events. Typical applications include back-to-back N-channel MOSFET switches in automotive body modules, battery isolation switches, eFuse replacements, relay replacement circuits, and load-driving in BCM (body control modules). The low Iq enables permanent connection to battery without significant quiescent drain, satisfying modern vehicle quiescent-current budgets. Designers should select an external inductor and bootstrap/charge-pump capacitor per the datasheet's typical-application circuit to ensure stable boost operation. Reverse-battery protection eliminates the need for an external blocking diode in most 12V systems, reducing BOM count and board area. The input control pin can be driven directly from a microcontroller GPIO or a logic-level signal.
AUIRS21271STR - 600V High-Side Gate Driver, 290mA | Infineon
The Infineon AUIRS21271STR is an automotive-grade, high-side gate driver IC in a non-inverting configuration, housed in an 8-pin SOIC package with a maximum supply rating of 600V. It delivers 290 mA of gate drive current with 175 ns propagation delay, supports an operating supply range of 10 V to 20 V, and integrates over-current protection with current sensing feedback. A gate driver is a power-management IC that sits between a low-power controller (MCU, DSP, or logic gate) and a high-power switching device such as a MOSFET, IGBT, or GaN transistor. Gate drivers belong to the broader family of PMIC (Power Management IC) gate driver ICs, which are themselves part of the power management semiconductor category. High-side gate drivers like the AUIRS21271STR switch the high-side of a half-bridge or floating load referenced to a switching node, providing level shifting and bootstrap-compatible drive in compact surface-mount packages. Key differentiating features of the AUIRS21271STR include 80 ns typical rise time and 40 ns typical fall time, an integrated over-current comparator with an external sense input, and automotive-grade qualification per AEC-Q100. The single-channel topology simplifies PCB routing compared to half-bridge drivers, while the 600 V absolute maximum rating provides ample margin for 400 V or 500 V bus systems typical of EV traction and industrial drives. Architecturally, the part uses a level-shifted high-side drive stage with an internal charge pump and a current-sense amplifier path that compares the CS pin against an internal threshold. The non-inverting input logic requires a single logic-level PWM signal from the controller. The IC draws a low quiescent current from VCC and is qualified for automotive temperature ranges, making it suited for under-hood and chassis electronics. Typical applications include automotive DC-DC converters, traction inverter gate drivers, industrial motor drives, and switch-mode power supplies (SMPS) where the load is high-side referenced. The part is also used in plug-in hybrid (EV) onboard chargers, solar inverters, and welding equipment. Designers value the integrated over-current protection, which reduces external component count and BOM cost. When designing with this driver, ensure that the bootstrap capacitor is sized to maintain VBS above the UVLO threshold during the high-side on-time, and that the CS pin filter network rejects switching noise to avoid false over-current trips. A local 0.1 µF ceramic decoupling capacitor on VCC placed within 5 mm of the pin is essential. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including cross-brand equivalents and PCB layout guidance.
AUIRS21811STR - 600V Half-Bridge Gate Driver 1.9A | Infineon
The Infineon AUIRS21811STR is a 600 V half-bridge gate driver IC housed in an 8-pin SOIC (SO-8) package with 1.9 A peak source / 2.3 A peak sink drive current and a non-inverting logic input. The part operates from a 10 V to 20 V VCC supply, tolerates negative transient voltages on the bootstrap high-side rail, and is qualified to AEC-Q100 for automotive environments. A gate driver IC is a power-management semiconductor that translates low-power PWM control signals from a microcontroller or DSP into the high-current gate-drive signals required to switch discrete power MOSFETs, IGBTs, or GaN FETs. Gate drivers sit between the logic controller and the power stage in the system hierarchy: gate driver -> power management IC -> semiconductor -> discrete switch. By providing local high-current drive and level-shifting, they reduce switching losses, allow smaller gate resistors, and protect the controller from high-voltage transients on the switched node. Key features of the AUIRS21811STR include 1.9 A source / 2.3 A sink peak output current, 600 V absolute maximum bootstrap high-side rail, 10 V to 20 V VCC range with integrated undervoltage lockout (UVLO) on both VCC and VBS rails, 60 ns typical rise time and 35 ns typical fall time into a 1 nF load, and 160 ns propagation delay (typical). The 8-SOIC footprint keeps the design compact while the high dV/dt immunity and negative VS transient tolerance simplify layout in half-bridge and full-bridge motor-drive topologies. Architecturally, the AUIRS21811STR uses a level-shifted high-side channel with a floating bootstrap supply referenced to the switch node (VS), allowing continuous high-side drive up to the 600 V rail. The low-side channel is supplied directly from VCC. The input stage accepts 3.3 V/5 V CMOS or logic-level inputs with non-inverting polarity, and the matched propagation delays between channels simplify dead-time control in complementary PWM applications. AEC-Q100 grade-1 qualification and automotive-grade moisture sensitivity level (MSL3) make it suitable for underhood and chassis electronics. Typical applications for the AUIRS21811STR include automotive 12 V/48 V motor drives (HVAC blowers, oil/water pumps, electric power steering auxiliary rails), DC-DC converter primary-side MOSFET driving, Class D audio amplifiers, and small industrial half-bridge inverters. The wide bootstrap tolerance also makes it usable in 230 V AC PFC and totempole PFC front ends when the topology calls for a 600 V driver. When designing with this part, place the VCC bypass capacitor (typically 0.1 uF ceramic in parallel with 10 uF bulk) as close to pins 5 and 8 as possible, and keep the bootstrap diode and BST capacitor (typically 0.1 uF to 1 uF) loop tight to limit the high-side rail ringing. For applications above 1 kW per phase, verify that the 1.9 A source/2.3 A sink rating gives sufficient gate-charge headroom for the chosen MOSFET/IGBT; larger switches may require a dedicated gate-driver buffer stage. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that supplement the manufacturer datasheet and help engineers select, source, and lay out the AUIRS21811STR with confidence.
BCM352F110M300B00 - 300W Isolated BCM 352V to 11V | Vicor
The Vicor BCM352F110M300B00 is a 300 W fixed-ratio isolated DC-DC Bus Converter Module (BCM) that steps down 330 V-365 V input to an isolated 11 V distribution bus in a co-molded VI Chip surface-mount package. Per the Vicor datasheet, it delivers 28.5 A output current (300 W) with K=1/32 fixed transformation ratio, achieving high conversion efficiency in a compact SMD footprint compatible with standard pick-and-place assembly. What is a Bus Converter Module? A BCM is a specialized isolated fixed-ratio DC-DC converter that creates an isolated, regulated intermediate bus voltage from a higher-voltage distribution rail. The BCM sits in the power-distribution hierarchy between an AC-DC front end / PFC stage and downstream Point-of-Load (POL) converters, replacing traditional isolated bus converters with a planar magnetic, sine-amplitude-conversion topology that delivers faster transient response and lower noise than conventional hard-switched converters. Key features include isolated 3,750 VDC galvanic barrier, 330-365 VDC input range with input overvoltage lockout, and an output voltage range of 10.3 V to 11.4 V. The fast transient response of the BCM topology reduces or eliminates the need for bulk aluminum electrolytic or tantalum hold-up capacitors at downstream POL inputs, saving board area, BOM cost, and improving system reliability by removing limited-life capacitors from the design. Technically, the BCM352F110y300B00 uses Vicor's proprietary Sine Amplitude Conversion (SAC) topology with zero-current switching and zero-voltage switching, minimizing switching losses and EMI. The co-molded VI Chip package exposes a large thermal interface area that conducts heat directly into the PCB, supporting >300 W continuous output at case temperatures up to 100 C (T-Grade) without forced-air cooling in typical applications. Typical applications include 380 VDC distribution from three-phase PFC front ends, intermediate bus architectures (IBA) feeding downstream Vicor PI31xx/PI33xx or LGA POL converters, telecom equipment, LED lighting drivers, and industrial 380 V process-control systems. The off-line BCM is particularly suited for silver-box AC-DC designs where isolation, efficiency, and density are paramount. When designing with this device, ensure the upstream PFC front end provides input voltage within the 330-365 VDC window and that downstream POL converters accept 11 V nominal input. Thermal management relies on PCB copper area under the VI Chip thermal interface pad; follow Vicor AN:301 layout guidelines for best results. This page synthesizes distributor pricing, real cross-reference data, drop-in alternatives, and application guidance that complements - but is not found in - the manufacturer datasheet alone.
BCM380P475T800A30 - 800W 380V to 47.5V BCM Bus Converter | Vicor
The Vicor BCM380P475T800A30 is a 800 W isolated bus converter module (BCM) that steps a 260 V to 410 V DC input down to a regulated 47.5 V DC output, delivering up to 16.9 A in a 9-pin through-hole ChiP package. It uses Vicor's proprietary Sine Amplitude Converter (SAC) topology operating at MHz switching frequency to achieve a fixed K-factor voltage transformation with galvanic isolation rated above 4.242 kVDC. A BCM (Bus Converter Module) is a fixed-ratio DC-DC converter used as a front-end building block in distributed power architectures. By occupying the voltage-transformation stage with a high-efficiency resonant converter, the BCM lets downstream point-of-load (PoL) converters or downstream BCM cascaded stages handle local regulation. Categorically, a BCM sits in the hierarchy: isolated DC-DC converter > bus converter > power management module > semiconductor. Its K-factor (Vout/Vin, here 47.5/380 = 0.125) makes it a 1/8 ratio converter ideal for 380 V nominal bus to a 48 V intermediate bus. Key specifications include 800 W continuous output power, 96.4% typical efficiency at full load, 4.242 kVDC isolation, parallel operation capability with automatic current sharing, and a wide operating input range of 260-410 VDC. According to the Vicor datasheet, all parameters apply over -40 °C to +125 °C internal temperature (T-Grade), and the module supports full output power with no derating at temperatures up to 65 °C ambient. Integrated protection features include under-voltage lockout (UVLO), over-temperature shutdown, over-current limiting, and short-circuit protection. Typical applications include 380 VDC distribution in data center and telecom systems, three-phase PFC front-ends, industrial motor drives, renewable energy inverters, and high-voltage battery-to-48V conversion in electric vehicle charging and energy storage systems. Its high efficiency and isolation simplify compliance with safety standards like IEC 60950 and IEC 62368. When designing with the BCM380P475T800A30, ensure the upstream source provides sufficient inrush current limiting at startup. The ChiP package includes an exposed baseplate for direct heatsink mounting; thermal management is typically achieved via the PCB or a cold-plate interface. Use Vicor's recommended PI31xx and PI33xx PoL siblings for downstream 48V-to-load conversion. This page synthesizes distributor pricing, drop-in alternatives, and practical design considerations from Vicor's BCM datasheet family, providing information not consolidated in any single manufacturer document.
BCM48BF030T210A00 - 210W 48V to 3V BCM Bus Converter | Vicor
The Vicor BCM48BF030T210A00 is a 210 W isolated, fixed-ratio DC-DC bus converter module in the BCM (Bus Converter Module) VI Chip family, operating from a 38-55 VDC primary bus to deliver a ratiometric 3.0 VDC (range 2.4-3.4 VDC) output at up to 70 A. According to the manufacturer datasheet, efficiency exceeds 94% and the part uses a Sine Amplitude Converter (SAC) topology that presents a low AC impedance beyond the bandwidth of most downstream regulators, allowing input-side bulk capacitance to substitute for output capacitance at the load. A bus converter module (BCM) is a fixed-ratio isolated DC-DC converter used in a two-stage distributed power architecture. It sits upstream of one or more point-of-load (PoL) regulators and performs only bus-voltage transformation (no output regulation). This isolates noise, simplifies PoL design, and enables a Factorized Power Architecture (FPA). The BCM's SAC topology is a proprietary soft-switching technique using a small, high-frequency AC transformer and resonant tank to deliver efficiency and density well beyond what hard-switched converters can achieve at the same power level. Key features include 48 V nominal input (38-55 VDC range), 3.0 VDC nominal output (2.4-3.4 VDC regulated envelope), 210 W continuous output power, >94% peak efficiency, 36-55 VDC input overvoltage/undervoltage lockout thresholds, 1500 VDC input-to-output isolation, and -40C to +125C operating junction temperature. The co-molded VI Chip surface-mount package is compatible with standard pick-and-place assembly and provides an enhanced thermal interface for cold-plate or PCB copper cooling. The SAC engine delivers sub-milliohm output impedance at high frequency, so bulk output capacitors normally required at the load can be moved to the input side of the BCM. This shrinks the converter's effective footprint at the point-of-load and reduces the design's overall BOM count. The fixed K=1/16 ratio means a 48 V bus becomes a 3 V intermediate bus, which pairs naturally with 1 V or lower PoL regulators in processor and ASIC power trees. Typical applications include 48 V-to-PoL data center power trees (with downstream Vicor PRM and VTM/ZVS regulators), telecom and network equipment using 48 V backplanes, high-performance computing and AI accelerator boards, RF amplifier power rails in wireless base stations, and industrial 24/48 V bus systems feeding downstream buck regulators. The 3 V intermediate bus is sized to drive 0.8-1.8 V core rails for ASICs, FPGAs, and processors. When designing with this BCM, observe the derating envelope near 55 VDC input and 70 A output. The VI Chip package requires both top and bottom thermal pads connected to a copper heat spreader or cold plate; relying on the PCB copper pour alone is generally insufficient for sustained 210 W operation. Provide input fusing per Vicor application notes and parallel BCMs only with the manufacturer-recommended current-share interface. This page synthesizes distributor pricing, parametric comparison, and practical thermal/layout notes not found in the manufacturer datasheet alone. Values not present in the verified web data are flagged with [DATA_NEEDED] for engineering review.
BCM48BF040M200B00 - 200W 48V BCM Bus Converter | Vicor
The Vicor BCM48BF040M200B00 is an isolated, fixed-ratio DC-DC bus converter module (BCM) that delivers up to 200W of output power from a 38V to 55V nominal 48V input rail. It uses Vicor's proprietary Sine Amplitude Converter (SAC) topology operating with zero-voltage switching (ZVS) and zero-current switching (ZCS), producing a K-factor transformation ratio of 1/8 (K = 1/8) to step the 48V bus down to a 4V to 6V intermediate distribution bus. The converter is housed in a surface-mount VI Chip package (9.5 mm by 25.4 mm) compatible with standard pick-and-place assembly. A bus converter module (BCM) is a specialized isolated, fixed-ratio DC-DC converter used in distributed power architectures to step a higher-voltage distribution bus (such as 48V) down to an intermediate, lower-voltage bus (such as 4-6V) that downstream point-of-load (PoL) regulators can directly use. Within the broader power-conversion taxonomy, BCMs sit between the system-level AC-DC front end and the board-level PoL converters, providing galvanic isolation, high efficiency, and a building block for Factorized Power Architecture (FPA). Because the conversion ratio is fixed and determined by the transformer turns ratio, BCMs offer significantly higher efficiency and power density than variable-ratio converters operating at the same conditions. Key features of the BCM48BF040M200B00 include typical conversion efficiency of 96% at full load, 1500 VDC isolation between input and output, parallel operation capability for higher output power, and integrated over-current, over-voltage, and over-temperature protection. The device operates across a -40C to +125C junction temperature range and provides a power density exceeding 1000 W/in³, enabling compact 48V distribution in telecom, datacom, and industrial applications. The BCM48BF040M200B00 uses a SAC sine-wave current steering topology with a planar transformer and proprietary control IC, switching at approximately 3 MHz effective frequency. The fixed K=1/8 ratio means output voltage tracks input voltage with a fixed proportional relationship, eliminating feedback loop compensation requirements and enabling sub-millisecond transient response. The chip-level packaging integrates magnetics, semiconductor switches, and control circuits into a thermally-enhanced co-molded structure with a large thermal interface area for direct heatsink attachment or cold-plate cooling. Typical applications include 48V-to-PoL intermediate bus conversion in telecom and datacom equipment, Factorized Power Architecture (FPA) for servers and high-performance computing, industrial 48V battery and bus systems, and high-density power distribution for RF power amplifiers. The 1500 VDC isolation allows direct connection to rectified 48V telecom supplies while providing a safe, low-voltage distribution rail for downstream regulators. When designing with this device, ensure the upstream 48V rail stays within the 38V to 55V operating window under all transient conditions, and use the manufacturer's recommended input/output capacitor network to control SAC ripple current. Parallel operation requires current-share circuitry; consult the Vicor datasheet for proper sense-pin and PR-pin wiring before stacking units. This page synthesizes distributor pricing, parametric comparisons, and application guidance for the BCM48BF040M200B00, plus verified cross-references to adjacent Vicor BCM models in the same VI Chip footprint.
BCM48BF080T240A00 - 240W BCM Bus Converter | Vicor
The Vicor BCM48BF080T240A00 is a 240 W fixed-ratio isolated BCM (Bus Converter Module) that steps 38–55 V input down to a regulated 8 V output at up to 36 A, housed in a surface-mount VI Chip package compatible with standard pick-and-place assembly. A BCM bus converter is a fixed-ratio DC-DC converter used as a building block in a Factorized Power Architecture (FPA). It provides isolation, voltage transformation, and noise attenuation between a higher-voltage distribution bus (e.g., 48 V) and a lower-voltage intermediate bus that downstream PRMs/VPTs or point-of-load regulators further process. The product type hierarchy is: BCM bus converter -> isolated DC-DC converter -> DC-DC converter -> power module -> power management IC -> semiconductor. Operating at very high switching frequency with a proprietary Sine Amplitude Converter (SAC) topology, the BCM delivers low-noise output without the large output filter of conventional hard-switched converters, while the >40% footprint reduction versus discrete converters simplifies PCB layout. Key features of the BCM48BF080T240A00 include 240 W continuous output power, 8 V / 36 A output capability, 38–55 V input range, fixed 1/6 transformation ratio (K = 1/6), and a co-molded VI Chip thermally-enhanced package. Built-in protection includes undervoltage lockout (UVLO), overvoltage lockout (OVLO), overcurrent protection (OCP), short-circuit protection (SCP), and overtemperature protection (OTP), along with an enable/disable control pin for sequencing. Architecturally, the BCM uses a zero-voltage, zero-current switching (ZVZCS) SAC topology that achieves peak efficiencies in the 94–96% range at typical load points - far above conventional hard-switched bus converters - reducing system airflow and cooling cost. The planar magnetics embedded in the VI Chip package eliminate hand-wound inductors and yield repeatable performance from unit to unit. Typical applications include 48 V telecom and datacom intermediate bus conversion, high-end server and storage power distribution, industrial 48 V robotics and machinery buses, battery-backed 48 V systems, and as a front-end for downstream point-of-load regulators. The BCM’s low-noise, low-EMI signature makes it well suited to noise-sensitive analog and RF rails when followed by a downstream LDO. When designing with the BCM48BF080T240A00, ensure adequate thermal management through the VI Chip thermal interface - Vicor recommends a thermal pad or cold plate. The fixed-ratio nature means no feedback compensation loop is required, simplifying the BOM, but the output voltage tracks the input divided by 6, so input pre-regulation may be needed if the bus voltage is not already stable. This page synthesizes distributor stock and lead time, drop-in alternatives within the BCM48BF080y240A00 family, and design notes not found in the manufacturer datasheet.
BCM48BF120M300A00 - 300W 48V-to-12V Bus Converter | Vicor
The Vicor BCM48BF120M300A00 is an isolated, fixed-ratio DC-DC bus converter module (BCM®) that converts a 38V to 55V input rail to a 12V output at up to 25A (300W) in a surface-mount ChiP (BCM2) package. It is part of Vicor's VI Chip® BCM family, which uses a Sine Amplitude Converter (SAC) topology and zero-voltage switching (ZVS) to deliver 95%+ efficiency at a fixed 1/4 K factor (Vin/Vout = 4). The BCM2 (2314) surface-mount package has a 32.5 x 22 x 7.4 mm footprint, allowing direct PCB mounting with no sockets, and supports parallel arrays that inherently share load current. A bus converter module (BCM) is a type of isolated, fixed-ratio DC-DC converter designed to step a bus voltage (such as 48V) to a lower distribution voltage (such as 12V or 5V) with high efficiency and galvanic isolation. BCMs sit in the power-conversion hierarchy between bulk DC-DC converters and downstream point-of-load (PoL) regulators, and they are commonly used in factorized-power architectures where isolation and bus conversion are separated from the final regulation step. Key features include 38-55V input range, 12V regulated output, 25A / 300W continuous output, ~96% typical efficiency at full load, 2000 VDC isolation, 1.5 MHz switching frequency, full protection set (UVLO, OVLO, OCP, SCP, OTP), and a parallel-array droop-on sharing mechanism. The fixed-ratio SAC topology eliminates feedback loop compensation, delivering a predictable, low-noise output without the stability trade-offs of traditional PWM controllers. The BCM48BF120M300A00 uses Vicor's proprietary Sine Amplitude Converter topology, which combines zero-voltage switching with sinusoidal transformer excitation to minimize switching losses, EMI, and output ripple. The fixed K-factor conversion ratio is set internally by the transformer turns ratio and the SAC architecture, allowing the module to operate open-loop with no external feedback components while still providing tight output regulation. Typical applications include 48V telecom and datacom bus distribution, 48V to 12V conversion for PoL regulator front-ends, industrial 48V battery-powered equipment, LED lighting drivers, and military/aerospace DC-DC subsystems. When paralleled, multiple BCM48BF120M300A00 modules inherently share load current due to their droop output characteristic. When designing with this BCM, note that it requires a low-impedance input source (or input capacitors) and proper thermal management via the package baseplate. The output is not adjustable; if a different output voltage is required, consider a different BCM K-factor or a downstream regulator.
BCM48BF120T300A00 - 300W 48V-to-12V BCM Bus Converter | Vicor
The Vicor BCM48BF120T300A00 is a 300 W isolated fixed-ratio bus converter module (BCM) that steps a 38-55 V input down to a 12 V output at up to 30 A, housed in a 60-pin VI Chip® surface-mount package. The part delivers a fixed K=1/4 transformation ratio, 300 W continuous output power, and 97% typical efficiency at nominal line and full load, with a >4.0 kV DC isolation rating between input and output. A Bus Converter Module (BCM) is a class of isolated DC-DC converters designed to provide a fixed, non-regulated intermediate bus voltage from a higher nominal DC rail, typically feeding downstream Point-of-Load (PoL) regulators. BCMs sit in the power supply hierarchy above LDOs and buck converters and below AC-DC front ends; their primary function is efficient, isolated voltage transformation with high power density and ZVS/ZCS soft switching. The fixed-ratio topology simplifies feedback loop design because the output voltage inherently tracks the input through the transformer turns ratio. Key features of the BCM48BF120T300A00 include a wide 38-55 V input range for 48 V telecom and industrial bus compatibility, 12 V/30 A (300 W) output, fixed K=1/4 conversion ratio, 97% peak efficiency, and parallel operation capability with automatic current sharing. The co-molded VI Chip® package exposes a large thermal interface area for cold-plate or heatsink mounting, and the surface-mount land pattern enables standard SMT assembly with pick-and-place equipment. The BCM48BF120T300A00 uses Vicor's proprietary Sine Amplitude Converter (SAC) topology with zero-current and zero-voltage soft switching, which reduces EMI, lowers switching losses, and enables the high efficiency across the input range. The fixed-ratio architecture eliminates the need for optocoupler-based feedback loops, simplifying safety certification. The 4 kV+ isolation barrier qualifies the part for ITE, industrial, and select telecom safety standards. Typical applications include 48 V telecom point-of-load power distribution, intermediate bus conversion for distributed power architectures, industrial 48 V battery-powered equipment, high-performance computing and server auxiliary rails, and LED display driver power. The fixed-ratio output is ideal as a front-end to downstream Vicor PRM or ZVS buck regulators for PoL conversion. When designing with this BCM, ensure the input source can deliver the full 9 A peak input current and provide adequate bulk capacitance to limit startup inrush. The VI Chip® package requires thermal interface material and either a cold plate or significant PCB copper area for sustained 300 W operation. This page synthesizes distributor pricing, drop-in BCM alternatives, and practical design notes from the Vicor datasheet that go beyond what is found on individual distributor product listings.
BCM53346A0KFSBLG - 24GE+4x10G Smart Switch SoC | Broadcom
The Broadcom BCM53346A0KFSBLG is a 24-port Gigabit Ethernet plus 4x10G uplink Smart Switch system-on-chip (SoC) designed for managed enterprise, SMB, and industrial networking equipment. It integrates 24 10/100/1000BASE-T PHYs (24GE) with four 10-Gigabit Ethernet SerDes uplinks (4x10G), a non-blocking switching fabric, and a built-in management CPU subsystem to deliver wire-speed Layer 2/Layer 3 forwarding in a single device. A Smart Switch (also known as a managed switch SoC or L2+/L3 Lite switch) is a highly integrated network processor that combines copper PHY transceivers, MACs, packet buffers, an address lookup engine, QoS/ACL hardware, and an embedded management CPU into one silicon die. Within the broader taxonomy, a Smart Switch sits between an unmanaged switch ASIC and a full Layer 3 switch/router SoC, in the hierarchy: Smart Switch -> Managed Ethernet Switch -> Network Switch -> Networking IC -> Semiconductor. This category targets applications needing VLAN, IGMP snooping, ACL filtering, and basic routing without the cost of a chassis-class switch. Key features include 24 integrated tri-speed Gigabit PHYs with Energy Efficient Ethernet (EEE) support, four 10G SerDes supporting SFP+ / 10GBase-R, an integrated ARM-class management processor, hardware-based L2/L3/L4 ACL, sFlow / port-mirroring, and IEEE 1588v2 timestamping. The device is offered in a BGA package suitable for reflow assembly and supports industrial-grade operating temperatures for harsh-environment deployments. Architecture-wise, the BCM53346 family uses a shared-memory switch fabric with deep packet buffers, multi-stage egress queuing (typically 8 queues per port), and a TCAM-based classifier. The integrated CPU runs a Broadcom SDK (ROBO or equivalent), enabling rapid development of CLI, Web, SNMP, and NETCONF management planes. This integration eliminates external PHY and switch-chip complexity, reducing BOM cost and PCB area. Typical applications include managed Gigabit Ethernet switches for SMB and enterprise access layers, industrial Ethernet switches with PTP timing, smart-building/factory-floor aggregation switches, 10G-uplink IP surveillance NVR switches, and fiber-to-the-room (FTTR) ONTs/aggregators. The four 10G uplinks also enable use as a stacking link between access-tier switches. When designing with this part, allocate sufficient PCB area for the BGA thermal pad and high-speed SerDes routing. Provide clean, well-decoupled power rails and follow Broadcom reference layout guidelines for the 10G SerDes channels to meet IEEE 802.3ae return-loss masks. This page synthesizes distributor stock data, parametric drop-in alternatives, and practical layout notes that complement - but do not replace - the manufacturer datasheet.
BCM59011A0KMLG - PoE PSE Controller, 30W, 1-Ch | Broadcom
The Broadcom Limited BCM59011A0KMLG is a single-channel Power over Ethernet (PoE) Power Sourcing Equipment (PSE) controller rated for up to 30W per port, supplied by Broadcom Limited and classified by distributors under PMIC - Power Over Ethernet (PoE) Controllers. The device integrates the detection, classification, and power-control functions needed to safely deliver power over Ethernet cabling to powered devices (PDs) such as IP cameras, wireless access points, and VoIP phones. A PoE PSE controller is a power-management IC that sits between the Ethernet switch port and the power feed, governing how DC power is applied to the network cable. Per the IEEE 802.3 PoE framework, the PSE must first detect a valid powered-device signature, negotiate a power class, then monitor current, voltage, and faults during powered operation. PSE controllers sit within the broader hierarchy of power management ICs (PMIC), alongside voltage regulators, hot-swap controllers, and battery-management devices, and are a critical safety element in any network switch that delivers inline power. Key characteristics of the BCM59011A0KMLG, per distributor listings: one PoE channel with a maximum delivered power of 30W, controller (PSE) device type with no internal switch FETs (external pass MOSFET and sense element required), bulk packaging, and ROHS3 compliance. Distributor inventory snapshots have shown stock in the thousands of units (for example, 25,600 units reported on icDirectory in January 2026 and 4,140 units on Full-Electronic), although multiple sources mark the part status as obsolete. The controller architecture uses external power MOSFETs, so the designer selects the FET, sense resistor, and protection thresholds, giving flexibility in port power budget and thermal design. This split architecture was common in PoE switches where the controller IC handles the protocol and supervisory functions while discrete power stages handle the 30W delivery. Typical applications include enterprise Ethernet switch line cards, PoE midspan injectors, network video recorder port feeds, and industrial networking equipment powering cameras and access points over the same cable that carries data. Design consideration: because the part is marked obsolete by several sources, new designs should evaluate the active successor BCM59141A0KMLG early, and legacy-repair builds should secure sufficient stock with full traceability. This page synthesizes distributor pricing signals, obsolescence status, drop-in alternative data, and practical design notes not consolidated in any single datasheet listing.
BCM59011B0KMLG - PSE 30W+ Octal PoE Controller | Broadcom
The Broadcom BCM59011B0KMLG is a Power Sourcing Equipment (PSE) Power over Ethernet (PoE) controller IC delivering 30 W+ per port, classified in the PMIC - Power over Ethernet (PoE) Controllers category and described by distributors as a PSE 30W+ OCTAL POE device with single-channel controller function. A Power over Ethernet PSE controller is a power management IC that sits in the powered device port of network switches and midspans. It negotiates power with the connected powered device (PD), classifies the load, monitors current and voltage, and disconnects faulty ports - forming the power-delivery layer of the power management IC hierarchy alongside regulators and battery management ICs. Key features include its 30 W+ power-per-port capability, which supports higher-power PoE classes used in access points, IP cameras, and industrial endpoints, and its octal-port system-level designation (PSE 30W+ OCTAL POE), indicating deployment in multi-port PoE switching infrastructure where eight channels are managed as a group. According to Octopart's parameter comparison, the device is categorized as Type: Controller (PSE), Number of Channels: 1, Power - Max: 30 W, and Internal Switch(s): No, meaning an external MOSFET switch stage is required in the power path. Because the internal switch is not integrated, designers pair the BCM59011B0KMLG with external pass devices and sense resistors, which gives flexibility in thermal design but adds board area. The single-channel controller architecture is typically replicated across the ports of an octal system, sharing supervisory and sequencing logic. Typical applications include enterprise PoE switch line cards, PoE midspan injectors, wireless access point infrastructure, and surveillance camera power distribution where 30 W-class power negotiation and fault isolation are required. A key design consideration is the external switch selection: the external MOSFET must handle the 30 W-class current with adequate RDS(on) and SOA margin, and current-sense accuracy directly affects PoE classification compliance. This page synthesizes distributor inventory data, Octopart parameter comparisons, and drop-in alternative analysis not found in the manufacturer datasheet alone.
BCM59121B0KMLG - Octal 802.3bt PoE PSE Controller | Broadcom
The Broadcom BCM59121B0KMLG is an octal, fully integrated IEEE 802.3bt-compliant Power Sourcing Equipment (PSE) controller housed in a 56-pin QFN (8x8 mm) package. According to the Broadcom product brief, the device integrates eight low-RDSon (0.2 ohm) high-voltage FETs, an onboard microcontroller, and Broadcom's proprietary lossless internal current-sense path, delivering 8-channel PoE/PoE+/PoE++ sourcing for switches, midspans, and industrial Ethernet equipment. A PSE controller is a category of power management IC that resides in network switches or midspan hubs and is responsible for detecting, classifying, and powering Powered Devices (PDs) over Ethernet cabling. Within the broader hierarchy, a PSE controller is a specialized Power-over-Ethernet IC, itself a subcategory of Power Management IC, which in turn falls under the broader umbrella of Power Management. The BCM5912X family specifically targets high-port-count enterprise and industrial switches that must comply with the latest IEEE 802.3bt standard. Key features include 8 independent PSE channels, 0.2 ohm integrated MOSFETs, 802.3af/at/bt support, I2C/SPI management interface, and per-port current/voltage monitoring. The BCM59121B0KMLG supports legacy 2-pair and modern 4-pair powering modes, including Type-3 (60 W) and Type-4 (90 W) operation, with proprietary current-sense topology eliminating the need for external sense resistors. The 56-QFN package combines power-stage thermal performance with a compact 8x8 mm footprint suitable for high-density switch designs. Architecturally, the device uses Broadcom's lossless internal current-sense method together with an embedded MCU to handle detection, classification, power-good timing, and fault recovery in hardware. This removes external FET drivers and sense resistors, reducing BOM and PCB area, while the on-die microcontroller provides port telemetry to the host switch CPU. Typical applications include enterprise managed switches, industrial Ethernet switches, IP surveillance NVRs, wireless LAN controllers with PoE uplinks, and any multi-port PSE system requiring IEEE 802.3bt compliance. The 4-pair Type-4 support makes it well-suited for powering high-demand devices such as PTZ cameras, Wi-Fi 6/6E/7 access points, and industrial lighting controllers. When designing with the BCM59121B0KMLG, allocate adequate copper area beneath the exposed pad for thermal dissipation. Designers should follow the BCM5912X hardware reference design and use Broadcom's evaluation kit firmware for code development.
BCM6123ED1E5117T00 - 380Vin 47.5Vout 16.9A BCM VI Chip Eval | Vicor
The Vicor BCM6123ED1E5117T00 is a high-voltage BCM (Bus Converter Module) evaluation board from the VI Chip family, delivering a step-down isolated DC/DC conversion with a 380 V nominal input, 47.5 V output, and 16.9 A load capability. Housed in the 6123 ChiP package, it integrates Vicor's Sine Amplitude Converter (SAC) topology with a fixed K=1/8 (380V to 47.5V) ratio to provide low-noise, high-efficiency bus conversion for 48V POL architectures. A BCM (Bus Converter Module) is an isolated, fixed-ratio DC/DC converter that acts as a 'DC transformer' between a higher-voltage distribution bus (typically 384V or 400V in telecom/datacenter or 48V systems at higher power levels) and a lower-voltage intermediate bus. Within the system hierarchy, BCMs sit above isolated POL converters and below the front-end AC/DC or PFC stage, providing isolation, voltage translation, and bidirectional power flow in a factorized-power architecture. Key features of this evaluation board include the 260-410 VDC input range, 47.5 VDC regulated output, 16.9 A continuous load current (approximately 800 W output), and Vicor's proprietary BCM control loop delivering >96% peak efficiency. The ChiP (Converter housed in Package) format eliminates discrete magnetics and integrates the SAC transformer and powertrain into a thermally efficient surface-mount module. The 'E' designator indicates an evaluation-board configuration with input/output screw terminals and test points. The BCM6123ED1E5117T00 uses zero-voltage and zero-current switching at the SAC operating frequency, eliminating the turn-on losses of conventional hard-switched converters and enabling high switching frequencies without sacrificing efficiency. The module is bidirectional and supports parallel operation for higher-power systems. Thermal management is provided through the ChiP baseplate, which can be mounted to a cold plate or heatsink for full-power operation. Typical applications include 380 VDC distribution in datacenter and telecom shelves, 48V intermediate bus conversion from HVDC feeds, industrial motor drives, and renewable-energy power conversion systems. Engineers select this evaluation board to characterize the BCM6123 series in their own system before committing to a production BCM6123TD1E5117T00 module. When designing with this board, observe the high-voltage safety precautions: 380 VDC is potentially lethal. Use isolated probes and follow Vicor's BCM evaluation board user's guide for proper input fusing, inrush limiting, and output capacitor selection to match the downstream PRM (Pre-Regulator Module). This page consolidates distributor pricing, same-brand drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.
BCM6123T60E15A3T0R - 1755W Isolated BCM Bus Converter 36-60V to 13.5V | Vicor
The Vicor BCM6123T60E15A3T0R is a fixed-ratio isolated BCM (Bus Converter Module) housed in a through-hole 6123 ChiP package, converting a 36 V to 60 V input range to a 13.5 V output at up to 130 A continuous secondary current for a deliverable power of approximately 1755 W. The K=1/4 turn ratio provides a step-down transformation with 2250 VDC isolation between input and output, making it suitable as a front-end bus converter in 48 V direct-to-point-of-load power distribution architectures. A bus converter module is a specialized isolated DC-DC converter used as a building block in distributed power systems: it accepts a higher distribution voltage and produces a lower intermediate bus voltage that downstream POL (point-of-load) regulators can further step down to the voltages required by logic, memory, processors, or analog circuitry. BCM devices sit in the hierarchy of DC-DC converters, alongside isolated brick converters, but are distinguished by their fixed transformation ratio, low profile, and exceptionally high power density. The BCM6123T60E15A3T0R operates at 97.4% peak efficiency and reaches up to 2867 W/in³ power density, enabling compact, high-current 48 V intermediate bus designs. Key features include OV, OC, UV, short-circuit and thermal protection, parallel operation capability for multi-kW arrays, a SAC (Sinusoidal Amplitude Converter) topology that produces low-noise switched waveforms, and a digital interface variant option in the closely related BCM6123T60E15A3T01. The through-hole ChiP form factor allows robust board-mount assembly and effective thermal coupling to internal heat spreaders for high-current applications. This device is particularly well-suited to data center, telecom, and industrial 48 V power architectures where high step-down ratios, high efficiency, and small footprint are required. When designing with BCM converters, designers typically pair them with Vicor's PRM (Pre-Regulator Module) or ZVS buck regulators downstream to establish a Factorized Power Architecture. Adequate cooling is essential: at 130 A output, thermal design must account for 2867 W/in³ power density losses, and Vicor provides heatsink and cold-plate accessories for the 6123 ChiP family.
BCM6123TD1E5126T00 - 380V/47.5V 25.7A Isolated BCM Bus Converter | Vicor
The Vicor BCM6123TD1E5126T00 is an isolated, fixed-ratio DC-DC bus converter (BCM) housed in a through-hole ChiP package that accepts a 260V to 410V input (380V nominal) and delivers a non-isolated, unregulated 47.5V output at up to 25.7A continuous, equivalent to roughly 1.22 kW of throughput in a brick-class power density. The part uses Vicor's proprietary Sine Amplitude Converter (SAC) topology to achieve 97.9% peak efficiency and a converter-class power density of 1876 W/in³, making it one of the densest 380V-input bus converters in its voltage class. A BCM (Bus Converter Module) is a fixed-ratio, high-isolation DC-DC converter used as a 'DC transformer' in a Factorized Power Architecture (FPA). Rather than regulating to a fixed output voltage, the BCM multiplies or divides the input by a fixed K factor (K = Vout/Vin = 47.5V / 380V ≈ 1:8 step-down), so downstream regulation is performed by a separate PRM (Pre-Regulator Module) or point-of-load converter. This architecture reduces switching losses, allows paralleling for multi-kW arrays, and provides galvanic isolation up to 4,242 VDC - a key advantage in HV battery, traction, and industrial systems. Key differentiating features include OV/OC/UV/short-circuit and thermal protection built into the analog control interface, parallel operation for multi-kW arrays with automatic current sharing, and a 4,242 VDC isolation barrier that meets the creepage and clearance needs of 380V battery-link rails. The ChiP (Converter housed in Package) form factor integrates the magnetic and capacitive structures inside a single through-hole module, eliminating external magnetics and simplifying PCB layout. Typical applications include 380V HV battery distribution in electric vehicles and industrial DC links, 48V/54V bus conversion from 380V traction rails, renewable-energy tie-in to higher-voltage DC microgrids, and any high-density point-of-load front-end where 4 kV isolation is mandatory. Designers typically pair the BCM with a Vicor PRM or downstream buck regulator to close the regulation loop. A key design consideration: BCM outputs are unregulated, so output voltage tracks input. If the upstream 380V link swings between 260V and 410V, the 47.5V output will swing proportionally (47.5 × 260/380 to 47.5 × 410/380 = 32.5V to 51.3V). Closed-loop regulation must therefore be implemented downstream. Thermal derating is also critical at the high end of the input range.
BCM6123TD1E5126T01 - 380V to 47.5V 1.2kW Bus Converter | Vicor
The Vicor BCM6123TD1E5126T01 is an isolated, regulated BCM (Bus Converter Module) that steps 260-410V input down to 47.5V at up to 25.7A continuous output current, delivering 1876 W/in³ power density in a through-hole ChiP package. It is part of Vicor's high-voltage Factorized Power Architecture portfolio and is engineered for 380V nominal bus distribution, with 4242 VDC isolation and peak efficiency of 97.9%. What is a BCM (Bus Converter Module)? A BCM is a fixed-ratio, isolated DC-DC converter typically used as a building block inside a Factorized Power Architecture (FPA). It is sandwiched between a high-voltage primary DC bus and a lower-voltage intermediate bus, providing galvanic isolation, voltage transformation, and bidirectional power flow. Within Vicor's product hierarchy it sits alongside PRMs (Pre-Regulator Modules) and VTMs (Voltage Transformation Modules); together they form a complete intermediate-bus solution that decouples the source conversion stage from the downstream point-of-load regulation. Key features include a K=1/8 fixed transformation ratio, a wide 260-410V input operating window that aligns directly with 3-phase PFC rectified rails, and a robust protection suite covering output over-voltage, over-current, under-voltage, short-circuit, and over-temperature faults. The through-hole ChiP package exposes a substantial thermal interface that allows full output derating only above 70°C ambient with adequate system cooling. Internally, the BCM6123 employs Vicor's proprietary Sine Amplitude Converter (SAC) topology, driving a custom planar transformer with a soft-switching ZCS/ZVS scheme that keeps switching losses well below those of conventional hard-switched converters. The result is a flat efficiency curve across most of the load range and negligible reverse-recovery stress, which contributes to the 97.9% peak figure. Typical applications include 380V industrial three-phase intermediate bus architectures, hybrid battery / HV-DC distribution in renewable energy storage and electric vehicle charging stations, and high-density 48V-100V server and telecom backplane feeds. The -T01 device-grade variant supports digital telemetry and PMBus-style telemetry interfaces when used alongside a Vicor upstream controller. When laying out a board for the BCM6123, keep input and output loops as small as possible and follow Vicor's recommended land pattern; the through-hole ChiP terminations also carry the main current path, so adequate copper weight and thermal vias to inner copper planes are critical for full 1.2 kW operation without thermal throttling. This page synthesizes current distributor inventory, drop-in alternative shortlists, and application-oriented design guidance drawn from public-domain reference designs not consolidated in the manufacturer datasheet alone.