Xin Cheng received the B. S., M. S. degrees in microelectronics from Hefei University of Technology, Hefei, China, in 2006, 2009 respectively, and the PH.D. degree in microelectronics from Institute of Electronics, Chinese Academy of Sciences, Beijing, China, in 2012. Now she serves as an associate professor in School of Microelectronic, Hefei University of Technology. Her research interests include DC-DC converter and analog integrated circuit design.