Buck Converter – 3.3v Fixed Output Voltage
This is not intended for modifying LCD’s for 5v operation. They require very stable filtered voltage to prevent noise in the image. An LCD version is being designed specifically for this purpose and will be available soon.
This module takes an input voltage and efficiently (up to 95% efficiency) drops it down to a fixed 3.3v. No adjustments needed. It accepts any input voltage from 4.75 to 23v.
Small size leaves more room in your build. The board measures only 0.73” x 0.49” (18.5 x 12.4 mm )
This board can supply 1 amp of current, but I recommend keeping it under 2 amps.