General Description

The AAT4280A SmartSwitch is a member of AnalogicTech’s Application Specific Power MOSFET™ (ASPM™) product family. The AAT4280A is a P-channel MOSFET power switch designed for high-side load switching applications. The device has a typical RDS(ON) of 80mΩ, allowing increased load switch power handling capacity. The device is available in three different versions with flexible turn-on and turn-off characteristics — from very fast to slew rate limited.

Features

• 1.5V to 5.5V Input Voltage Range

• Very Low RDS(ON), Typically 80mΩ (5V)

• Slew Rate Limited Turn-On Time Options

▪ 4.5ms

▪ 1ms

▪ 0.5μs

▪ 100μs

• Fast Shutdown Load Discharge Option

• Low Quiescent Current

▪ 25nA (typ)

• TTL/CMOS Input Logic Level

• Temperature Range: -40ºC to +85°C

• 3kV ESD Rating

• SC70JW-8 and SOT23-6 Packages

Applications

• Cellular Telephones

• Digital Still Cameras

• Hot Swap Supplies

• LCD Panels

• Notebook Computers

• Personal Communication Devices

• Personal Digital Assistants (PDAs)