Ericsson worldwide

Ericsson BMR451 series

Digital 40A POL

The BMR451 40 A POL series provides high-power density with wide input voltage and wide output voltage adjust.

Key Features

It features digital PWM with adaptive dead-time control precision delay and ramp-up. The series also features non-linear transient response, and is PMBus read and write compliant.

Input: 4.5-14 V
Output: 40 A

  • 3E POL connect
  • Max height 8.2 mm (0.323 in)
  • 96.4 percent efficiency at 3.3 V (typical value at half load)
  • PMBus read and write compliant

Other Features:

  • Voltage/current/temperature monitoring
  • Precision delay and ramp-up
  • Non-linear transient response
  • Wide output voltage adjust function
  • Start up into a pre-biased output
  • Output short-circuit protection
  • On/Off remote control
  • Output voltage sense
  • ISO 9001/14001 certified supplier


Product Program

4.5-14 V Input:

Vout (V)Iout (A)Pout (W)Part No 
1.04040BMR451 0002/020 
3.340132BMR451 0002/020 


The BMR451 3E POL regulator is also available with different options. For more details, see Technical Specification under Downloads.


Mechanical Data

Size (LxWxH):

30.85 x 20 x 8.2 mm (1.215 x 0.787 x 0.323 in)