Product Description

The CMPWR330 is a dual input regulator with a fully integrated VAUX switch capable of delivering up to 400mA continuously at 3.3V. 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

• Continuous 3.3V output from three inputs

• Complete power management solution

• VCC, VSBY regulator supplies 400mA output

• Built-in hysteresis when selecting input supplies

• Integrated switch has very low RDS(ON) 0.25Ω (TYP)

• Foldback current limiting protection

• Thermal overload shutdown protection

• 8-pin power SOIC package

Applications

• PCI adapter cards with Wake-On-LAN

• Network Interface Cards (NICs)

• Multiple power systems

• Systems with standby capabilities