The LSR01-12S3P3 from Ideal Power Ltd is a DC to DC Converter with Input Voltage 4.75 to 36 V, Output Voltage 1 3.3 V, Output Current 1 1000 mA, Operating Temperature -40 to 105 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Surface Mount, Buck/Step down. More details for LSR01-12S3P3 can be seen below.