ON Semiconductor FPF2193

General Description

The FPF2193, FPF2194, and FPF2195 is a series of load switches which provides full protection to systems and loads which may encounter large current conditions. These devices contain a 55mW current-limited P-channel MOSFET which can operate over an input voltage range of 1.8-5.5V. Internally, current is prevented from flowing when the MOSFET is off and the output voltage is higher than the input voltage. Switch control is by a logic input (ON) capable of interfacing directly with low voltage control signals. Each part contains thermal shutdown protection which shuts off the switch to prevent damage to the part when a continuous over-current condition causes excessive heating.

Features

■ 1.8 to 5.5V Input Voltage Range
■ Controlled Turn-On
■ 0.15-1.5A Adjustable Current Limit
■ Undervoltage Lockout
■ Thermal Shutdown
■ <2uA Shutdown Current
■ Auto Restart
■ Fast Current limit Response Time
■ 5us to Moderate Over Currents
■ 30ns to Hard Shorts
■ Fault Blanking
■ Reverse Current Blocking
■ RoHS Compliant

Applications

■ PDAs
■ Cell Phones
■ GPS Hand-held Devices
■ Portable Enterprise / Industrial Devices
■ Digital Cameras
■ Peripheral Ports and Accessories
■ Portable Medical Equipment
■ Hot Swap Supplies