The CC10-0503SR-E from TDK Corporation is a DC to DC Converter with Input Voltage 5 V, Output Voltage 1 3.3 V, Output Current 1 2500 mA, Output Power 10000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for CC10-0503SR-E can be seen below.