AAT4621 Datasheet - Skyworks

AAT4621 PC Card Current Limit Interface and Capacitor Charger

The AAT4621 SmartSwitch family is a current limited P-channel MOSFET power switch designed for high-side load-switching applications in PC Card GSM/GPRS/3G modem cards. Used in conjunction with a super capacitor, the AAT4621 will ensure that the power ratings of the PCMCIA host are not exceeded at a.

AAT4621 Features

* Operating Voltage Range: 3.0V to 5.5V

* Dual Independent Current Limits ▪ AAT4621: 75mA to 1200mA ▪ AAT4621-1: 150mA to 2400mA ▪ ±10% Current Accuracy

* Reverse Current Blocking Protection

* Power Loop

* Low Quiescent Current ▪ 40μA Typical ▪ 1.0μA Max with

AAT4621-Skyworks.pdf