DC-DC is a newly developed miniaturized power switch module. It uses microelectronics technology to assemble small surface-mounted integrated circuits and microelectronic components into one body. The use of DC-DC power modules is conducive to simplifying the power circuit design, shortening the development cycle, achieving better indicators, etc., and can be widely used in various digital instruments and intelligent instruments.

DC-DC power modules are widely used in communication fields such as power electronics, military industry, scientific research, industrial control equipment, communication equipment, instrumentation, switching equipment, access equipment, mobile communications, routers, and industrial control, automotive electronics, aerospace and other fields. Since the use of modules to build power systems has the characteristics of short design cycle, high reliability, and easy system upgrades, power modules are increasingly used in applications. Especially in recent years, due to the rapid development of data services and the continuous promotion of distributed power supply systems, the growth rate of power modules has exceeded that of primary power supplies. With the extensive use of semiconductor technology, packaging technology and high-frequency soft switching, the power density of power modules is getting larger and larger, the conversion efficiency is getting higher and higher, and the application is getting simpler and simpler.