5.5-V 4-A synchronous step-down converter with IC interface in 1.5-mm x 2.5-mm QFN package 9-VQFN-HR -40 to 125
Texas Instruments
Texas Instruments - TPS628681ARQYR
$1.68 - $2.12
Texas Instruments - TPS628682ARQYR
$1.57 - $1.97
Texas Instruments - TPS628680ARQYR
$1.57 - $2.08
Texas Instruments - TPS6286800CRQYR
$1.01 - $2.23
Texas Instruments - TPS6286820CRQYR