BUY LNK3204D https://www.utsource.net/itm/p/11755341.html

Description: The LNK3204D is a high performance, low cost, off-line, fixed-frequency current-mode PWM controller IC. Features: Low start-up current Low operating current Low standby power consumption Internal leading-edge blanking Internal soft-start Internal frequency jitter Over-voltage protection Over-temperature protection Under-voltage lockout Cycle-by-cycle current limiting Over-current protection Short-circuit protection Applications: Switching power supplies AC/DC converters DC/DC converters LED lighting (For reference only)