The DI78L12DAB from Diotec Semiconductor is a LDO Voltage Regulator with Input Voltage 35 V, Output Voltage 11.5 to 12.5 V, Dropout Voltage 1700 mV, Output Current 0.1 A, Quiescent Current 0.2 to 6.5 mA. Tags: Surface Mount. More details for DI78L12DAB can be seen below.