USB Single-Channel Power Switch
General Description
The AAT4625 SmartSwitch is part of AnalogicTech's
Application Specific Power MOSFET鈩?(ASPM鈩?
product family. It is a 1.0A current limited P-chan-
nel MOSFET power switch designed for high-side
load-switching applications. 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 supply
against large changes in load current which may
cause the supply to fall out of regulation. The
AAT4625 is also protected from thermal overload
which limits power dissipation and junction temper-
atures. The current limit threshold is factory pro-
grammed at 1.5A, with a maximum of 2.0A. The
quiescent supply current is typically a low 16碌A(chǔ). In
shutdown mode, the supply current decreases to
less than 1碌A(chǔ).
The AAT4625 is available in Pb-free, 8-pin SOP,
TSSOP, or MSOP packages, and is specified over
the -40擄C to +85擄C temperature range.
The AAT4600 series is a family of adjustable and
fixed SmartSwitch products with a range of current
handling capabilities. Single versions with
adjustable current limit (AAT4601) or fixed current
limit (AAT4625) as well as dual versions with fixed
current limit (AAT4626) are available.
AAT4625
Features
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SmartSwitch
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Compliant with USB 1.1 and 2.0 Specifications
2.7V to 5.5V Input Voltage Range
1.0A Minimum Continuous Current
2.0A Maximum Current Limit
60m惟 Typical R
DS(ON)
Low Quiescent Current:
鈥?Typically 16碌A(chǔ)
鈥?1碌A(chǔ) Maximum with Switch Off
Thermal Shutdown
Slew Rate Limited Turn On
Fault Flag with 10ms Blanking
Under-Voltage Lockout (UVLO)
Temperature Range: -40擄C to +85擄C
UL Approved鈥擣ile No. E217765
8-Pin SOP, TSSOP, or MSOP Package
Applications
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General Purpose Power Switching
Hot Swap Supplies
Notebook Computers
USB Ports and Peripherals
UL Recognized Component
Typical Application
V
CC
5.0V
100k
2
1
7
IN
OUT
6
OUTPUT
AAT4625
FLG
EN (EN)
3
OUT
8
0.1渭F
EN (EN)
120渭F
GND
GND
4625.2006.04.1.2
1
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