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)