Abstract
This paper describes characteristic analysis of a micro DC-DC converter which integrates inductor, controller and switching devices, and an improvement of transient response characteristic. The steady state operation and the efficiency characteristics of the micro DC-DC converter are shown as experimental data. And static characteristics are theoretically analyzed in consideration of DC current characteristics of the inductor. Moreover, the load transient response characteristics of the micro DC-DC converter are analyzed experimentally and theoretically. In addition, the factor that the overshoot and undershoot of the output voltage when the load changes are caused is discussed. Finally, the clamp circuit for reducing the overshoot and undershoot of the output voltage when the load changes is proposed.
