Electronic Products & Technology

Integrated VRM power stage provides up to 140A peak

EP&T Magazine   

Electronics module power regulator voltage

FLEX POWER MODULES BMR511 two-phase power stage for Voltage Regulator Module (VRM) solutions provides a footprint of 0.9cm2/0.14 in2 and a height of 8mm/0.31 in. The halogen-free device is available with LGA or solder-bump terminations and is optimized for bottom-side cooling to complement the previously announced BMR510, which is optimized for top-side cooling. Product operates over a 5 -15V input range and delivers an adjustable 0.5 – 1.8V output, set by a user-defined external controller via tri-state PWM inputs. Each device can supply a current of 80A continuous total and 140A peak, at high efficiency peaking at 94.5%, while parts can be directly paralleled for even higher current outputs. The input voltage range makes the BMR511 compatible with several unregulated front-end Intermediate Bus Converters which operate with typical input to output ratios of 3:1 up to 7:1.

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