The LTM4609 from Analog Devices is a DC to DC Converter with Input Voltage 4.5 to 36 V, Output Voltage 1 0.8 to 34 V, Output Current 1 4000 mA, Operating Temperature -40 to 125 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Surface Mount, Buck-Boost. More details for LTM4609 can be seen below.