BUY LP2997MRX https://www.utsource.net/itm/p/11224937.html

Description: The LP2997MRX is a low-dropout (LDO) linear regulator with an adjustable output voltage from 1.2V to 5.5V. Features: Output Voltage Range: 1.2V to 5.5V Output Current: 500mA Dropout Voltage: 200mV (typical) Low Quiescent Current: 30μA (typical) Low Noise: 40μVrms (typical) Fast Transient Response Thermal Shutdown Protection Over-Current Protection Short-Circuit Protection Reverse-Current Protection Applications: Battery-Powered Systems Portable Electronics Automotive Electronics Industrial Systems Consumer Electronics (For reference only)