Flex Power Modules upgrades BMR510 to improve efficiency
An upgrade to the specification of Flex Power Modules’ BMR510 two-phase voltage regulator module means that it now uses advanced materials of magnetic core, yielding high inductance in a small package size. This allows lower switching frequency operation than necessary for the gapped ferrite cores which were previously, improving efficiency to 90 per cent compared with 13.5 V input, 0.8V/40A output in the original module.
The BMR510 is capable of delivering a total of 80A continuous (140A peak) output current at 0.5 to 1.3V from an input of 4.5 to 16 V. Power stages in the module include MOSFETs and drivers coupled with integrated inductors. The integrated power stage is suitable for space-constrained applications, with dimensions of 10 x 9.0 x 7.6mm and a volume of less than 0.7cm3.
The BMR510 is halogen-free and is optimised for top-side cooling. Terminations are solder-bump or optionally LGA. Output over-current and over-temperature protection are included and sensed values are available for remote monitoring. The module will accept tri-state PWM inputs from the chosen controller and a separate enable input is provided.
The module provides power for silicon devices with a current demand of over 100A, such as GPUs, CPUs, IPUs, FPGAs and ASICs in AI applications.
The upgraded BMR510 is sampling now, with production scheduled for Q4 2022.
Flex Power Modules said that it plans to introduce more single and multi-phase VRMs (voltage regulation modules), introducing variations of total numbers of phases, output current rating and footprints.
Flex Power Modules, a business line of Flex, manufactures scalable DC/DC power converters primarily serving the data processing, communications, industrial and transportation markets. Offering a wide range of both isolated and non-isolated solutions, its digitally-enabled DC/DC converters include PMBus compatibility supported by the Flex Power Designer software.
