Digital regulator cuts power consumption

Utilising digital, rather than analogue, technology means Ericsson Power Modules BMR450 voltage regulator is said to increase current density while decreasing footprint and reducing component count by 50 per cent. The BMR450 uses an integrated digital PWM controller with embedded dynamic and adaptive controls to reduce power consumption by adjusting critical parameters to match load conditions.

This digitally controlled, non-isolated voltage regulator is rated at 20A with a current density of 7.38A/cm3. Its reduced footprint makes it easy to locate close to FPGAs, DSPs and other processors, reducing power losses and parasitic inductance issues.

Application areas include wireless and fixed networks, optical network equipment, data server and data storage as well as a range of industrial applications from medical to process control and automotive. Benefits are listed as: energy saving and system flexibility with enhanced monitoring functions provided through the PMBus open standard interface.

The BMR450 features an input voltage range from 4.5 to 14V. The output voltage range is adjustable from 0.7 to 5V, with an output current of 20A providing up to 100W of power.

Further benefits include a range of tailor-made preset modules that fit application requirements such as ramp-up time, output voltage and alarms. Standard functions include remote on/off, over-temperature protection, output over-current/over-voltage protection, input under-voltage protection, and remote control monitoring that can be used for redundancy control.