This 5V 3A step-down voltage regulator is a compact DC-DC buck converter designed to efficiently reduce a higher input voltage (7-22VDC) down to a stable 5V output, with a maximum output current of 3 amps. It’s intended to be used in automotive and DIY electronics projects to power 5V devices like microcontrollers, USB-powered gear, or sensors from higher voltage sources such as car batteries and other 12V systems. The output is a standard USB A charging port. The regulator features built-in overcurrent and thermal protection, ensuring safe and reliable operation even in demanding environments. Unlike many of our other regulators, these are fully sealed with epoxy and can be directly mounted using the tab on each side – no enclosure required!