BUY S007 https://www.utsource.net/itm/p/1218283.html

Package: DIP20 Description: S007 is an integrated circuit designed for power management applications. Features: Low power consumption High efficiency Low output ripple Wide input voltage range Over-temperature protection Over-current protection Short-circuit protection Reverse polarity protection Over-voltage protection Under-voltage protection Soft-start Adjustable output voltage Adjustable output current Low EMI High reliability Applications: Automotive Industrial Telecommunications Medical Consumer electronics Home appliances LED lighting (For reference only)