Current Limited Load Switch

Manufacturer's part number :


Manufacturer Skyworks


Description :

The AAT4610B SmartSwitch is a current limited P-channel MOSFET power switch designed for high-side load switching applications. This switch operates with inputs ranging from 2.4V to 5.5V, making it ideal for both 3V and 5V systems. An integrated current-limiting circuit protects the input supply against large currents which may cause the supply to fall out of regulation. The AAT4610B 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 9μA. In shutdown mode, the supply current decreases to less than 1μA.

The AAT4610B is available in a Pb-free 5-pin SOT23 or 8-pin SC70JW package and is specified over the -40°C to +85°C temperature range.

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    • Input Voltage Range: 2.7V to 5.5V
    • Programmable Over-Current Threshold
    • Fast Transient Response:
    • 400ns Response to Short Circuit
    • Low Quiescent Current
    • 9μA Typical
    • 1μA Max with Switch Off
    • 145mΩ Typical RDS(ON)
    • Only 2.5V Needed for ON/OFF Control
    • Under-Voltage Lockout
    • Thermal Shutdown
    • 4kV ESD Rating
    • 5-Pin SOT23 or 8-Pin SC70JW Package
    • Temperature Range: -40°C to +85°C

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Number of Channels 1  

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Enable ON (Active-Low)  
Fault Flag No  
Current Limit Threshold 1.6 A  
Typical Quiescent Current (µA) 9  
Typical On-Resistance (mΩ) 145  
Voltage In (V) 5.5  
Package (mm) SOT23-5