BUY AP3003S-5 https://www.utsource.net/itm/p/5752458.html

Description: AP3003S-5 is a three-terminal, low-dropout linear regulator with a maximum output current of 3A. It is designed to provide a low-noise, low-ripple, and low-dropout voltage regulation for a wide range of applications. Features: Low dropout voltage: 0.4V (typical) at 3A Low quiescent current: 6.5mA (typical) High output current: 3A Low output noise: 0.1mVrms (typical) High PSRR: 70dB (typical) Over-temperature protection Over-current protection Short-circuit protection Applications: Battery-powered systems Automotive applications Portable electronics Industrial systems Telecom systems Power management systems (For reference only)