MP62551 Power Distribution Switch is designed for precision current limiting and provides up to 1.5A continuous output current. It offers programmable current limit between 60mA and 1.7A (typ) with ±10% accuracy by an external resistor. The switch includes an 88m? N-channel Power MOSFET and operates from 2.5V to 5.5V input voltage. The device has built-in protection for both over current and increased thermal stress. For over current, the device will limit the current by changing to a constant current mode. It will shutdown when its internal temperature reaches unsafe levels and recover once the device temperature reduces approx 10°C. It provides built-in soft-start which controls the rise and fall times of the output voltage to limit the initial inrush current and voltage surges. The reverse-voltage protection feature turns off the MOSFET to protect the device. The FLAG output will report a fail mode (low level) when over current or over temperature is encountered. The FLAG will not change state when the input UVLO is triggered. The MP62550/MP62551 is available in space saving 6-pin TQFN 2x2mm package and TSOT23-6 package.Up to 1.5A Continuous Output Current ±10% Current-Limit Accuracy Adjustable Current-Limit, 60mA -1700mA (typ) Fast Over-current Response 2µs (typ) 2.5V to 5.5V Supply Range 88m? MOSFET (TQFN Package) 1.5µA Maximum Standby Supply Current Reverse Input-Output Voltage Protection Built-in Soft-Start Thermal-Shutdown Protection Automatic-on after Fault Removed Under-Voltage Lockout Deglitched Fault Report FLAG won't Change State at Input UVLO Transition Bidirectional Fault Deglitch Time Active Low & Active High Options