DescriptionThe AAT4614 SmartSwitch is a current limited P-channel MOSFET power switch designed for high side load switch-ing 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. Reverse current blocking is provided to protect the load switch from reverse current potentials while the device is shutdown. The AAT4614 is also protected from thermal overload which is limited by power dissipation and junction tem-resistor from SET to ground and may be adjusted for levels up to 1.6A. The ultra-fast current limit response to a sudden short circuit is a mere 1 s which reduces the requirements of local supply bypassing. An open drain FAULT flag signals an over-current or over-temperature condition after a 4ms blanking time to prevent false reporting. Quiescent current is a low 10 A and the su Features Input Voltage Range: 2.4V to 5.5V Programmable Over-Current Threshold Fast Transient Response: 1 s Response to Short Circuit Low Quiescent Current 10 A Typical while Enabled 1 A Max with Switch Off (TA = 25 C)DS(ON) Only 2.4V Needed for ON/OFF Control Under-Voltage Lockout Reverse Blocking During Disable 4ms Fault Blanking Fault Flag Open Drain Output (Not Available for SOT23-5 Package) Active Hi/Lo Enable Options Over-Temperature Protection 4kV ESD Rating 6-Pin SOT23, 5-Pin SOT23,or 8-Pin SC70JW Package Temperature Range: -40 C to +85 CApplications Hot Swap Supplies Notebook Computers Proprietary Peripheral Ports USB PortsTypical ApplicationOUINON/ONSETFLGNRSET100kOutputFault FlagPower Supply InputAAT46141 F0.47 FEN/EAAT4 614Adjustable Current Limited Load Switch with Fault FlagSmartSwitchTMPRODUCT DATASHEETGill Sans MT Bold Italic15/18, convert to outlines24614.2009.02.1.0www.analogictech.comAAT4 614Adjustable Current Limited Load Switch with Fault FlagSmartSwitchTMPRODUCT D specification in "Electrical Characterist