USB Single-Channel Power Switch

Manufacturer's part number :


Manufacturer Skyworks


Description :

The AAT4625 SmartSwitch is part of Skyworks' Application Specific Power MOSFET™ (ASPM™) product family. It is a 1.0A current limited P-channel 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 temperatures. The current limit threshold is factory programmed 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 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.

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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
    • 60mΩ Typical RDS(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 or MSOP Package

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Number of Channels 1  

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Enable EN (Active-Low)  
Fault Flag Yes  
Current Limit Threshold 1.5 A  
Typical Quiescent Current (µA) 16  
Typical On-Resistance (mΩ) 60  
Voltage In (V) 5.5  
Package (mm) MSOP-8