LM2596S Mini DC/DC Power Supply Adjustable Decompression Module [a12100500ux0253]
Date Added: Monday 15 April, 2013
I purchased one of these recently, works great so far. I use it on my Arduino Uno Board, one end is hooked up to a 7.5 Amp 12 Volt Battery & the output to my Arduino Board. Easy to adjudt the voltage with the screw, I went from 12V down to 8V.