KB78xx-500 series is a new generation of high efficiency switching regulator, which is a ideal substitute for the traditional LM78xx series linear three terminal voltage regulator. The efficiency is up to 96%, it means that very little energy is wasted and the heat is low, so there is no need for any heat sinks with their additional space and costs. The series support negative output. They are widely used in industrial control, instrumentation, and electric power applications.