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