General Description

The FPF2174 is a load switch which combines the functionality of the IntelliMAXTM series load switch with a very low forward voltage drop Schottky barrier rectifier and a zener clamp at the output. The integrated solution provides full protection to systems and loads which may encounter large current conditions in a very compact MLP 3x3 package. This device contain a 0.125Ω current-limited P-channel MOSFET which can operate over an input voltage range of 1.8-5.5V.

Features

■ 1.8 to 5.5V Input Voltage Range

■ Controlled Turn-On

■ 200mA Current Limit Option

■ Undervoltage Lockout

■ Thermal Shutdown

■ <1µA Shutdown Current

■ Fast Current limit Response Time

■ 3µs to Moderate Over Currents

■ 20ns to Hard Shorts

■ Integrated very low VF Schottky Diode for Reverse Current Blocking

■ Integrated Zener Diode for Output Clamp

Applications

■ PDAs

■ Cell Phones

■ GPS Devices

■ MP3 Players

■ Digital Cameras

■ Peripheral Ports

■ Hot Swap Supplies