Radiation-tolerant, 3-V to 7-V, 18-A, synchronous step-down converter in space-enhanced plastic 44-HTSSOP -55 to 125
Texas Instruments
Texas Instruments - TPS7H4003MDDWTSEP
$1,797.38
Texas Instruments - V62/21609-01XE
Texas Instruments - V62/21609-01XE-T