LTC1174 - High Efficiency Step-Down and Inverting DC/DC Converter; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
LINEAR TECHNOLOGY LTC1156CSW#PBF MOSFET Switch Driver, High Side, 4.5V-18V Supply, 26 s Delay, SOIC-16

Synchronous Step Down DC-DC Controller, 3.5-20V In, 0.05A Out, 14-Pin PDIP