BUY XT4054K421MR-G https://www.utsource.net/itm/p/8985852.html

Description: Low Noise, Low Dropout, Linear Regulator Features: Low Dropout Voltage: 0.5V (Typ) Low Output Noise: 40μVrms (Typ) Output Voltage Accuracy: ±1% (Typ) Output Current: 400mA (Max) Operating Temperature Range: -40°C to +125°C SOT23-6 Package Applications: Portable Devices Battery-Powered Systems Automotive Electronics Industrial Electronics Consumer Electronics (For reference only)