The AAT4601A SmartSwitch is a member of AnalogicTech\'s Application Specific PowerMOSFET™ (ASPM™) product family. It is a 1.8A 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 could cause the supply to fall out of regulation. The AAT4601A has protection from thermaloverload which limits power dissipation and junction temperatures. The maximum current limit level will guarantee that 1.8A can be delivered to the load;the actual threshold is programmed with a resistorfrom the SET pin to ground. The quiescent supplycurrent is typically 12μA. In shutdown mode, thesupply current decreases to less than 1μA.
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