BUY TNY179PN https://www.utsource.net/itm/p/5321727.html

The TNY179PN is a high-efficiency, low-power, fixed-frequency, current-mode, off-line PWM flyback converter controller IC from Power Integrations. It is designed to operate from a universal AC input and provide a regulated output voltage. Features: High efficiency Low power consumption Fixed frequency current mode PWM control Internal start-up and soft-start Internal over-voltage protection Internal over-temperature protection Internal short-circuit protection Internal frequency jittering Internal current limiting Internal brown-out protection Internal soft-start Internal over-voltage protection Applications: AC/DC power supplies Battery chargers LED lighting Industrial control systems Telecom power supplies Automotive electronics (For reference only)