The LT3761 from Analog Devices is a LED Driver IC with Input Voltage 4.5 to 60 V, Output Current 25000 mA, Number of Output 1, Switching Frequency 85 to 1050 KHz, Operating Temperature Range -40 to 125 Degree C. Tags: Surface Mount, DC-DC LED Driver. More details for LT3761 can be seen below.