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