K78_MT-500R4 series are high efficiency switching regulators. The converters feature high efficiency, low loss and short-circuit protection in a compact DFN package. These products are widely used in applications such as industrial control, instrumentation and electric power. https://www.campuscomponent.com/products/k7803mt-500r4-3-3v-0-5a-non-isolated-dc-dc-converter/2208614000004248424