BUY UC3843P https://www.utsource.net/itm/p/1394601.html
Current Mode PWM Controller
The UC3843P is a high performance fixed frequency current mode controller. It is specifically designed to offer improved performance and lower external parts count when implemented for controlling switching power supplies. Description: The UC3843P is a high performance fixed frequency current mode controller. It is specifically designed to offer improved performance and lower external parts count when implemented for controlling switching power supplies. It features a temperature compensated reference, adjustable frequency, and a wide range of operating supply voltage. Features: Temperature compensated reference Adjustable frequency Wide range of operating supply voltage Low external parts count Improved performance Applications: Switching power supplies Battery chargers Motor control Lighting control (For reference only)