The LT3066 from Analog Devices is a LDO Voltage Regulator with Input Voltage 1.6 to 45 V, Output Voltage 3.3 V, 5 V, Dropout Voltage 110 to 510 mV, Output Current 0.5 A, Temperature operating range -40 to 125 Degree C. Tags: Surface Mount. More details for LT3066 can be seen below.