The compact (0.4″ × 0.5″) D24V3F12 switching step-down (or buck) voltage regulator takes an input voltage between 14.5 V and 42 V and efficiently reduces it to 12 V while allowing for a maximum output current of 300 mA. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.