The ADP222 from Analog Devices is a LDO Voltage Regulator with Input Voltage 2.5 to 5.5 V, Output Voltage 0.8 to 3.3 V, Dropout Voltage 6 to 260 mV, Output Current 0.3 A, Quiescent Current 0.3 mA. Tags: Surface Mount. More details for ADP222 can be seen below.