The MAX18166 from Analog Devices is a DC to DC Converter with Input Voltage 4.5 to 16 V, Output Voltage 1 0.606 to 14.4 V, Output Current 1 4000 mA, Operating Temperature -40 to 85 Degree C, Storage Temperature -65 to 150 Degree C. Tags: Wafer-level Packaging, Buck/Step down. More details for MAX18166 can be seen below.