The AP2318A from Diodes Incorporated is a LDO Voltage Regulator with Input Voltage 2.5 to 13.2 V, Output Voltage 1.25 to 13.2 V, Dropout Voltage 500 mV, Output Current 1 A, Quiescent Current 0.25 mA. Tags: Surface Mount. More details for AP2318A can be seen below.