Product Description

The CMPWR300 is a dual input regulator with VAUX switch capable of delivering 3.3V/500mA continuously. The output power is provided from three independent input voltage sources on a prioritized basis. Power is always taken in priority using the following order VCC, VSBY, and VAUX.

Features

• 8-pin Power SOIC package

• Continuous 3.3V output from three inputs

• Complete Power Management solution

• VCC, VSBY Regulator supplies 500mA output

• Built-in hysteresis when selecting input supplies

• Integrated switch has very low RDS(ON) 0.12Ω (typ.)

• Large Bypass Capacitors on inputs not required

Applications

• PCI adapter cards with Wake-On-LAN

• Network Interface Cards (NICs)

• Multiple Power Systems

• Systems with Standby Capabilities