Ultra-small size LM2596 DC-DC 3A adjustable step-down power supply module, DC-DC Buck Converter. Application areas: DIY mobile power, communications equipment, power supply, all kinds of size and weight for demanding occasions (such as model airplane, etc.). IN + input positive – IN-input negative! The OUT + output the positive OUT – output negative Input voltage Read more about Ultra-small size LM2596 DC-DC 3A adjustable step-down power supply module, DC-DC Buck Converter[…]