SC1543 Datasheet - Semtech Corporation

SC1543 400mA/200mA Dual 3.3V Smart Power Switch

The SC1543 provides a glitch free 3.3V output when one of two 3.3V input sources is present. It does not require external logic to sequence from one input source to the other. Whenever VIN1 exceeds a predetermined threshold value the internal MOSFET connects it’s source voltage to the output. If the.

SC1543 Features

* =

* = Glitch free transitions between inputs Internal logic selects appropriate input 400mA load current capability from main input Low power shutdown mode Industrial temperature range APPLICATIONS

* = Mini PCI cards

* = Peripheral card

SC1543_SemtechCorporation.pdf