Product Description

The CM3103 combines a fixed voltage regulator and a VAUX switch in a single 8-pin SOIC package. The voltage regulator is capable of delivering up to 400mA continuously at 3.3V. The output power is provided from two independent input voltage sources on a prioritized basis. Power is always taken in priority of VCC, then VAUX.

Features

• Continuous 3.3V / 400mA output from two inputs

• Complete Power Management solution

• Built-in hysteresis when selecting input supplies

• Integrated switch featuring low RDSON (0.25Ω typ.)

• Foldback current limiting protection

• Thermal overload shutdown protection

• 8-pin SOIC package

• Lead-free version available

Applications

• PCI adapter cards with Wake-On-LAN

• Network Interface Cards (NICs)

• Multiple power supply systems

• Systems with standby capabilities