AAT4625_06 Datasheet, PDF (1/15 Pages) Advanced Analogic Technologies – USB Single-Channel Power Switch

General Description
The AAT4625 SmartSwitch is part of AnalogicTech's
Application Specific Power MOSFET™ (ASPM™)
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 16µA. In
shutdown mode, the supply current decreases to
less than 1µA.
The AAT4625 is available in Pb-free, 8-pin SOP,
TSSOP, or MSOP packages, and is specified over
the -40°C to +85°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.
Typical Application
AAT4625
USB Single-Channel Power Switch
Features
SmartSwitch^™
• 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
• 60mΩ Typical R_DS(ON)
• Low Quiescent Current:
— Typically 16µA
— 1µA Maximum with Switch Off
• Thermal Shutdown
• Slew Rate Limited Turn On
• Fault Flag with 10ms Blanking
• Under-Voltage Lockout (UVLO)
• Temperature Range: -40°C to +85°C
• UL Approved—File No. E217765
• 8-Pin SOP, TSSOP, or MSOP Package
Applications
• General Purpose Power Switching
• Hot Swap Supplies
• Notebook Computers
• USB Ports and Peripherals
UL Recognized Component
V_CC 5.0V
0.1μF
100k
EN (EN)
7 _IN
2 _FLG
AAT4625
1 _{EN (EN)}
3
OUT ⁶
OUT ⁸
OUTPUT
120μF
GND
GND
4625.2006.04.1.2
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