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AAT4608 Datasheet Preview

AAT4608 Datasheet

Current Limited Load Switch

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DATA SHEET
AAT4608
Current Limited Load Switch in a SOT23 Package
General Description
The AAT4608 SmartSwitch is a member of Skyworks'
Application Specific Power MOSFET™ (ASPM™) product
family. It is a current limited P-channel MOSFET power
switch designed for high-side load switching applica-
tions. This switch operates with inputs ranging from 2.7V
to 5.5V, making it ideal for both 3V and 5V systems. An
integrated current-limiting circuit protects the input sup-
ply against large currents which may cause the supply to
fall out of regulation. The AAT4608 is also protected
from thermal overload which limits power dissipation
and junction temperatures. It can be used to control
loads that require up to 1A. Current limit threshold is
programmed with a resistor from SET to ground. The
quiescent supply current is typically a low 15μA max.
The AAT4608 is available in a Pb-free, 5-pin SOT23 pack-
age, and is specified over the -40°C to +85°C tempera-
ture range.
Features
• 2.7V to 5.5V Input Voltage Range
• Programmable Over-Current Threshold
• Fast Transient Response:
<1μs Response to Short Circuit
• Low Quiescent Current
15μA Typical
1μA Max With Switch Off
160mTypical RDS(ON)
• Under-Voltage Lockout
• Thermal Shutdown
• Temperature Range: -40°C to +85°C
• 4kV ESD Rating
• 5-Pin SOT23 Package
Applications
• Hot Swap Supplies
• Notebook Computers
• Peripheral Ports
• Personal Communication Devices
Typical Application
INPUT
1μF
GND
5
IN
AAT4608 OUT 1
SOT23
3
SET
GND
2
RSET
OUTPUT
0.47μF
GND
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201915A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012
1




Skyworks

AAT4608 Datasheet Preview

AAT4608 Datasheet

Current Limited Load Switch

No Preview Available !

DATA SHEET
AAT4608
Current Limited Load Switch in a SOT23 Package
Pin Descriptions
Pin #
1
2
3
4
5
Symbol
OUT
GND
SET
N/C
IN
Function
P-channel MOSFET drain. Connect 0.47μF capacitor from OUT to GND.
Ground connection.
Current limit set input. A resistor from SET to ground sets the current limit for the switch.
No internal connection.
P-channel MOSFET source. Connect 1μF capacitor from IN to GND.
Pin Configuration
SOT23-5
(Top View)
OUT 1
GND 2
SET 3
5 IN
4 N/C
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2 201915A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012


Part Number AAT4608
Description Current Limited Load Switch
Maker Skyworks
Total Page 9 Pages
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