STMicroelectronics LD56050DPU120R, 1 Linear Voltage, Voltage Regulator 500mA, 1.2 V 4-Pin, DFN

Input voltage from 0.8 to 5.5 V
Bias supply pin
Ultra low-dropout voltage (120 mV max. at 500 mA load)
Low ground current (27 μA typ. at no-load)
Output voltage tolerance: ± 1.5% overtemperature, 0.5% at 25 °C
500 mA guaranteed output current
50 mV output voltage step available from 0.8 V to 3.6 V
Logic-controlled electronic shutdown
Internal current limit with foldback
Thermal shutdown
Output active discharge function
Available in DFN4 1.2 x 1.2 mm package
Temperature range: -40 °C to 85 °C