The PSR02-05S1P8 from Ideal Power Ltd is a DC to DC Converter with Input Voltage 3 to 5.5 V, Output Voltage 1 1.8 V, Output Current 1 2000 mA, Operating Temperature -40 to 100 ºC, Storage Temperature -55 to 125 ºC. Tags: Through Hole, Buck/Step down. More details for PSR02-05S1P8 can be seen below.