BUY ST393 https://www.utsource.net/itm/p/1369495.html

ST393 is a SOP-8 package voltage regulator IC manufactured by STMicroelectronics. It is a low dropout linear regulator with a maximum output current of 500mA. The device is designed to provide a regulated output voltage from an input voltage of up to 30V. Features: Low dropout voltage: 200mV (typical) at 500mA Output voltage range: 1.2V to 28V Output current: 500mA Thermal shutdown protection Short-circuit protection Low quiescent current: 20μA (typical) High ripple rejection: 80dB (typical) Applications: Battery-powered systems Automotive systems Industrial systems Portable devices Telecom systems (For reference only)