Jeongil Lee is a seasoned professional in power interface and audio engineering with extensive experience in applications and systems engineering, having served as Director of the Power Interface and Audio Business Unit at Diodes Incorporated since March 2020. Prior to this role, Jeongil held positions at ON Semiconductor as Sr. Applications Manager, focusing on the Power Switch Product Line, and at Fairchild for over a decade in various capacities, including System & Applications Manager and Principal Applications Engineer, emphasizing mobile solutions and power switching products. Jeongil's career commenced as a Signal Officer in the ROK Army after earning a Bachelor of Science in Electrical Engineering from the University of Seoul in 2001.