Low profile supply provides 125 W

26 September 2001 Power Electronics / Power Management

Power-One's MPB125-4350 is the first model in a series of high efficiency, high-density AC/DC power supplies. The MPB125 provides four outputs rated at +3,3 V at 10 A, +5,0 V at 15 A, +12 V at 5 A, and -12 V at 0,5 A at efficiencies as high as 85%. This is packaged in standard 76,2 x 127,0 mm footprint. Designed for datacom applications, the MPB125's 31,75 mm height is ideal for use in 1U 'pizza box' chassis.

Other datacom-oriented features include remote sensing for the 3,3 V output, overvoltage protection on V1 and V2, and a power good signal. Power factor correction circuitry complies with line harmonics standard EN 61000-3-2. It is rated for 125 W of output power with only 40 m/s linear airflow at 8,5 m³/hour. Additionally, the power supply can provide 75 W of output power in a convection environment. Onboard EMI filtering simplifies system compliance to EN55022 level B.

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