The ADP125 from Analog Devices is a LDO Voltage Regulator with Input Voltage 2.3 to 5.5 V, Output Voltage 0.8 to 5 V, Dropout Voltage 3 to 230 mV, Output Current 0.5 A, Quiescent Current 0.045 to 0.21 mA. Tags: Surface Mount. More details for ADP125 can be seen below.