The SMSA283R3S from Crane Aerospace & Electronics is a DC to DC Converter with Input Voltage 16 to 40 V, Output Voltage 1 3.15 to 3.45 V, Output Current 1 0 to 1.2 A, Output Power 4 W, Power Consumption 1.5 to 2.5 W (Dissipation). Tags: Surface Mount. More details for SMSA283R3S can be seen below.