DATA SHEET AAT4280A Slew Rate Controlled Load Switch General Description Features The AAT4280A SmartSwitch is a member of Skyworks 1.5V to 5.5V Input Voltage Range Application Specific Power MOSFET (ASPM) product Very Low R , Typically 80mW (5V) DS(ON) family. The AAT4280A is a P-channel MOSFET power Slew Rate Limited Turn-On Time Options switch designed for high-side load switching applications. 4.5ms The device has a typical R of 80mW, allowing 1ms DS(ON) increased load switch power handling capacity. The device 0.5s is available in three different versions with flexible turn-on 100s and turn-off characteristics - from very fast to slew rate Fast Shutdown Load Discharge Option limited. The standard AAT4280A (-1) version has a slew Low Quiescent Current rate limited turn-on load switch and is functionally com- 25nA (typ) patible with the AAT4250 device, while offering superior TTL/CMOS Input Logic Level R characteristics. The AAT4280A (-2) version fea- Temperature Range: -40C to +85C DS(ON) tures fast load switch turn-on capabilities, typically less 3kV ESD Rating than 500ns turn-on and 3s turn-off times. The AAT4280A SC70JW-8, SOT23-6, and WLCSP-5 Packages (-3) variation offers a shutdown load discharge circuit to rapidly turn off a load circuit when the switch is disabled. Applications The AAT4280A (-4) version features the slowest load switch turn-on capability, typically greater than 4.0ms Cellular Telephones turn-on time. All AAT4280A load switch versions operate Digital Still Cameras with an input voltage ranging from 1.5V to 5.5V, making Hot Swap Supplies them ideal for both 3V and 5V systems. Input logic levels LCD Panels are TTL and 2.5V to 5V CMOS compatible. The quiescent Notebook Computers supply current is very low, typically 25nA. Personal Communication Devices Personal Digital Assistants (PDAs) The AAT4280A is available in the Pb-free 8-pin SC70JW, 6-pin SOT23, and WLCSP-5 packages and is specified over the -40C to +85C temperature range. Typical Application V IN IN OUT V OUT AAT4280A IN C C IN OUT ON/OFF ON 1F 0.1F GND GND GND GND Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 1 202230A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. July 31, 2012 DATA SHEET AAT4280A Slew Rate Controlled Load Switch Pin Descriptions Pin SC70JW-8 SOT23-6 WLSCP-5 Symbol Function This pin is the input to the P-channel MOSFET source. Bypass to ground 1, 5, 6, 7, 8 4, 6 1, 4 IN through a 1.0F capacitor. This pin is the P-channel MOSFET drain connection. Bypass to ground 2 1 5 OUT through a 0.1F capacitor. 3 3 2 ON/OFF Enable input. 4 5 3 GND Ground connection. Pin Configuration SC70JW-8 SOT23-6 WLCSP-5 (Top View) (Top View) (Top View) 1 8 1 2 IN IN 1 6 IN ON/OFF OUT IN 2 7 OUT IN 3 GND 2 5 3 6 GND GND ON/OFF IN 45 IN OUT 45 GND IN 3 4 IN ON/OFF Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 202230A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. July 31, 2012