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AiT Semiconductor Inc.
www.ait-ic.com
A4771
POWER SWITCH 1A CURRENT LIMITED LOAD SWITCH
DESCRIPTION
FEATURES
The A4771 Smart Switch 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 A4771 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.
A4771 Datasheet
