SC1531 Datasheet PDF - Semtech Corporation

Description
The SC1531(A) is designed to maintain a glitch-free 3.3V output when at least one of tow inputs, 5V (VIN) and 3.3V (VAUX), is present.

APPLICATIONs
◆ Desktop Computers
◆ Network Interface Cards (NICs)
◆ PCMCIA/PCI Interface Cards
◆ Cardbus™ Technology
◆ Power supplies with multiple input source