1.8-V to 5.5-V input, 600-mA ultra-low IQ step-down converter in WCSP package 6-DSBGA -40 to 125
Texas Instruments
Texas Instruments - XPS628436YKAR
$1.18
Texas Instruments - XPS628437YKAR
Texas Instruments - TPS628436YKAR
Texas Instruments - TPS628437YKAR
Texas Instruments - TPS628438YKAR