BUY SSC3S927 https://www.utsource.net/itm/p/9779036.html

Description: SSC3S927 is a SOP16 package, low saturation voltage, high-speed switching regulator control IC manufactured by Sanken. Features: Low saturation voltage: 0.3V (typ.) High-speed switching: 200kHz (typ.) Built-in soft start circuit Built-in overcurrent protection circuit Built-in thermal shutdown circuit Built-in frequency compensation circuit Built-in oscillation frequency adjustment circuit Built-in overvoltage protection circuit Built-in undervoltage protection circuit Applications: Switching regulator control DC/DC converters Battery chargers DC/AC inverters Voltage regulators (For reference only)