AAT4282B Datasheet, PDF (1/13 Pages) Skyworks Solutions Inc. – Slew Rate Controlled Load Switch

General Description
The AAT4282B SmartSwitch™ is a member of Skyworks'
Application Specific Power MOSFET™ (ASPM™) product
family. The AAT4282B is a dual P-channel MOSFET power
switch designed for high-side load-switching applications.
Each MOSFET has a typical R_DS(ON) of 67m, allowing
increased load switch current handling capacity with a low
forward voltage drop. The AAT4282B offers a shutdown
load discharge circuit to rapidly turn off a load circuit
when the switch is disabled. A slew-rate selector pin can
switch between fast and slow slew rate.
The AAT4282B load switch operates from 1.5V up to
6.5V, making it ideal for both 3V and 5V systems. Input
logic levels are TTL and 2.5V to 5V CMOS compatible.
The quiescent supply current is a very low, less than
1μA.
The AAT4282B is available in a Pb-free, low profile 2.0 ×
2.0mm TDFN22-8 package and is specified over the
-40°C to 85°C temperature range.
DATA SHEET
AAT4282B
Slew Rate Controlled Load Switch
Features
• V_IN Range: 1.5V to 6.5V
• Low R_DS(ON)
▪ 67m Typical @ 5V
▪ 125m Typical @ 1.8V
• Slew Rate Turn-On Time
▪ 750μs - Slow (FAST = Low)
▪ 65μs - Fast (FAST = High)
• Fast Shutdown Load Discharge Option
• Low Quiescent Current
▪ 40nA Typical
• TTL/CMOS Input Logic Level
• Temperature Range -40°C to 85°C
• TDFN22-8 Package
Applications
• Cellular Telephones
• Digital Still Cameras
• Hotswap Supplies
• Notebook Computers
• PDA Phones
• PDAs
• PMPs
• Smartphones
Typical Application
INA
INB
C1
C2
1μF
1μF
ON/OFF
ON/OFF
FAST/ SLOW
INA
OUTA
INB
OUTB
ENA AAT4282B
ENB
FAST
GND
OUTA
OUTB
C3
0.1μF
C4
0.1μF
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201859B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 14, 2012
1