The ADP165 from Analog Devices is a LDO Voltage Regulator with Input Voltage 2.2 to 5.5 V, Output Voltage 1.0 to 4.2 V, Dropout Voltage 45 to 225 mV, Output Current 0.15 A, Quiescent Current 0.59 to 0.89 mA. Tags: Surface Mount. More details for ADP165 can be seen below.