BMR467 Digital PoL DC/DC Converters

Flex Power Modules' BMR467 is a two-phase 120 A digital point-of-load (PoL) DC/DC converter. The BMR467 is pin-compatible with its predecessor, the BMR465, but its upgraded design delivers 30 A more current.

Four BMR467 products can easily be connected in parallel to provide loads of up to 480 A, which makes it ideal for advanced network processors that require high-performance power delivery with advanced software control for improved flexibility. These capabilities also make the BMR467 compliant to software-defined power architecture (SDPA) systems.

The BMR467 PoL converter can be operated as a standalone unit delivering 120 A at output voltages from 0.6 V to 1.8 V, output power up to 216 W, as well as be part of a larger power system when processor boards require higher current.

The BMR467 modules can become part of a multi-module and multi-phase (up to eight-phase) power system that enables phase spreading, which reduces peak current and the number of capacitors required by end systems. The module can easily be configured with support available via the downloadable Flex Power Designer software tool.

The BMR467 offers automatic digital compensation to provide stability, accurate line and load regulation, and excellent transient performance across a wide range of operating conditions including switching frequency, input voltage, output voltage, and output capacitance.

Measuring only 50.8 mm x 19.05 mm x 8.2 mm in a SIP package, the BMR467 offers a power density of 15 A/cm³ (250 A/in³). Other key electrical specifications include an output voltage range from 0.6 V to 1.8 V, adjustable via a pin-strap resistor or PMBus commands, and operation from a 7.5 V to 14 V input. These and many other features make the BMR467 ideally suited for operation in distributed power and intermediate bus voltage architectures, which are common in advanced networking, telecommunications, server, and storage applications.

In addition, the BMR467 powertrain guarantees high efficiency and reliability and is built with market-leading power transistor semiconductors, enabling the module to deliver power efficiency of 93.2% at 12 V_IN, 1.8 V_OUT at half load. Other device specifications include an MTBF of 10.49 million hours and protection features including input undervoltage and overvoltage shutdown, output overcurrent and overvoltage protection, overtemperature protection, and remote control and Power Good pins.