The L7987L from STMicroelectronics is a DC to DC Converter with Input Voltage 4.5 to 61 V, Output Voltage 1 0.8 to 61 V, Output Current 1 2000 mA, Operating Temperature -40 to 150 Degree C, Storage Temperature -65 to 150 Degree C. Tags: Surface Mount, Buck/Step down. More details for L7987L can be seen below.