MP1584 3A Adjustable DC Step Down Converter

Very small voltage conversion module for a very wide current range, it is so compact that it adapts easily as a module in any design. You can simply wire it or adapt it to your pcb using pins inserted at the edges. In my case I will use it as a voltage regulator to power an arduino from the battery of a car. I guess I should put some capacitors at the input and others at the output, but for working in switching mode at a very high frequency, probably with small capacitors is enough.