The Fairchild Power Switch(FPS) product series was created specifically. A high voltage power SenseFET and a current mode PWM IC make up the Fairchild Power Switch (FPS). The fixed frequency oscillator, the under voltage lock-out, the leading edge blanking, the optimised gate turn-on/turn-off driver, the over-voltage protection, and the temperature-compensated precision current sources are all integrated into the included PWM controller for loop compensation and fault protection. A Fairchild Power Switch (FPS) can decrease the total number of components, design size, and weight while boosting efficiency, productivity, and system dependability when compared to a discrete MOSFET and a PWM controller or an RCC solution. Its fundamental framework is suitable for the It has a total of four pins, and its package is TO-220F-4L.