USB Dual-Channel Power Switch

Manufacturer's part number :


Manufacturer Skyworks


Description :

The AAT4626 SmartSwitch is part of Skyworks' Application Specific Power MOSFET (ASPM™) product family. It is a dual-channel 500mA 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 AAT4626 is also protected from thermal overload which limits power dissipation and junction temperatures. The current limit threshold is factory programmed at 1.0A, with a maximum of 1.5A. The quiescent supply current is typically a low 20μA. In shutdown mode, the supply current decreases to less than 1μA.

The AAT4626 is available in a Pb-free, 8-pin SOP package 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 are available with adjustable current limit (AAT4601) or fixed current limit (AAT4626), as well as dual versions with fixed current limit (AAT4626).

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    • 2.7V to 5.5V Input Voltage Range
    • Compliant with USB 1.1 and 2.0 Specifications
    • 500mA Minimum Continuous Current per Channel
    • 1.25A Maximum Current Limit per Channel
    • 90mW Typical RDS(ON)
    • Low Quiescent Current:
    • Typically 20μA
    • 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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Features Similar products
Number of Channels 2  

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Enable EN (Active-Low)  
Fault Flag Yes  
Current Limit Threshold 1 A  
Typical Quiescent Current (µA) 20  
Typical On-Resistance (mΩ) 90  
Voltage In (V) 5.5  
Package (mm) SOP-8