Things used in this project × 1 × 1 Greetings everyone, and welcome back! Here’s something useful: a DIY buck converter built using the popular LM317 adjustable linear voltage regulator. We designed a super small module that houses a compact DPAK LM317 IC paired with a few SMD components. The end goal of this module is to power a 64×32 RGB P3 matrix panel. The idea behind this project came from the need for a more reliable alternative to the commonly used AMS1117.