TEXAS INSTRUMENTS TPS54061EVM-142 EVAL BRD, TPS54061, STEP DOWN CNVTR
3V to 4V Input, 14A Synchronous Step-Down SWIFT™ Converter for Pre-biased Outputs 28-HTSSOP -40 to 85

Automotive Catalog 3.5V to 60V Input, 0.5A, 2.5MHz Step Down SWIFT™ Converter with Eco-Mode 10-MSOP-PowerPAD -40 to 125
Automotive Catalog 3.5V to 42V Input, 0.5 A Step Down SWIFT™ Converter with Eco-Mode™ 10-VSON -40 to 125
TPS54060-EP- 0.5-A, 60V Step Down DC/DC Converter with Eco-Mode 10-HVSSOP -55 to 125
Automotive Catalog, 4.7V -60-V, 200-mA Synchronous Step-Down DC-DC Converter 8-SON -40 to 150

Automotive Catalog, 4.7V -60-V, 200-mA Synchronous Step-Down DC-DC Converter 8-SON -40 to 150
Automotive Catalog 3.5V to 60V Input, 0.5A, 2.5MHz Step Down SWIFT? Converter with Eco-Mode 10-VSON -40 to 125