3.5-V to 36-V, 1.5-A step-down voltage converter with spread spectrum 16-HTSSOP -40 to 125
Texas Instruments
Texas Instruments - LM63615DQPWPRQ1
$2.73
Texas Instruments - LM63615DQDRRRQ1
$2.42 - $3.32
Texas Instruments - LM63615CAQDRRRQ1