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The BMR473 digital non-isolated PoL converter from Flex Power Modules is now available in a surface-mount format with solder bump terminations. This new mechanical version is also suitable for reverse mounting during reflow-soldering.
Just 19 x 13 x 7.5mm, the device operates from 6–15V input and provides a fully regulated output adjustable from 0.6–5V at up to 40A.
Up to four units can be paralleled with synchronisation and phase-spreading for a maximum of 160A output. Efficiency of the single-phase BMR473 is high, peaking at 96.2% at 12 Vin and 5 Vout at full load, with minimal temperature derating required due to excellent thermal management and a 125°C maximum hot spot temperature.
The BMR473 includes remote control, a power good signal and configuration and monitoring via PMBus, and is compatible with the Flex Power Designer GUI. Protection features include input under- and over-voltage, over-temperature and output over-voltage, over-current and short-circuit. Tight regulation, low output noise and fast load transient response round up the class-leading performance figures of the BMR473, along with over 30Mhrs MTBF according to Telcordia SR-332 standard.
