Yichen.Xu
04 — Writing

Publications

  1. Yichen Xu, Rentao Wan, Mao Li, Zhaoqing Wang, Suhwan Kim, Ram K. Krishnamurthy, Xin Zhang, and Mingoo Seok, “A Rising-Edge Computational Digital LDO With Load-Dependent Feedback and Fast Dynamic Voltage Scaling,” invited manuscript under review, IEEE Journal of Solid-State Circuits (JSSC), 2027.
  2. Yichen Xu, Shahreer Ahmed Al Hossain, Baoqi Zhu, Suhwan Kim, Ram K. Krishnamurthy, Xin Zhang, Mingoo Seok, “VSIMO: A DC-DC SIMO-based Current Mismatch Compensator Supporting Per-Output Bidirectional Power Flow for Stacked Voltage Domains Achieving >82% System Efficiency under up to 360-mA Load Mismatch,” IEEE Symposium on VLSI Circuits (VLSI), 2026.
  3. Yichen Xu, Rentao Wan, Mao Li, Zhaoqing Wang, Suhwan Kim, Ram K. Krishnamurthy, Xin Zhang, Mingoo Seok, “A 1mA-to-1050mA DLDO with Rising-Edge Feedforward Control and Load-Dependent Feedback Achieving 0.15-ps Load Transient FoM, 14-mV Output Ripple, and 25-mV/ns DVS Rate in a 28nm CMOS,” IEEE Symposium on VLSI Circuits (VLSI), 2026.
  4. Yichen Xu, Zhaoqing Wang, Rentao Wan, Suhwan Kim, Minxiang Gong, Ram Kumar Krishnamurthy, Xin Zhang, Mingoo Seok, “Digital Low-Dropout Regulator-Assisted Buck DC-DC Converter Achieving 68-mV Droop Voltage and 95.5% Efficiency,” IEEE Solid-State Circuits Letter (SSCL), 2025.
  5. Rentao Wan, Yichen Xu, Dong-Woo Jee, Mingoo Seok, “AJPEG: A 26.4-pJ/pixel, 252-fps, 128x128 Image Sensor with an In-Sensor Analog DCT Processor for Data Compression,” IEEE Custom Integrated Circuits Conference (CICC), 2025.
  6. Zhaoqing Wang, Yichen Xu, Suhwan Kim, Nachiket Desai, Minxiang Gong, Ram K. Krishnamurthy, Xin Zhang, Mingoo Seok, “A 93.9% Peak Efficiency 3V-to-40V-Input GaN-based DC-DC Converter with Unified Reliability and Efficiency Adaptive Control,” IEEE Custom Integrated Circuits Conference (CICC), 2025.
  7. Yichen Xu, Zhaoqing Wang, Jonghyun Oh, Mingoo Seok, “Model-Based Study on the Limit of the Dynamic Load Regulation Performance of a Digital Low Dropout Regulator,” IEEE Transactions on VLSI Systems (TVLSI), 2024.

Patents

  1. Yichen Xu, Xizhen Yin, “A High Voltage LDO-Based Linear Charging System,” issued Apr 28, 2023.
  2. Yichen Xu, Xizhen Yin, “A Substrate Switching Circuit for LDO Backflow Current Protection,” issued Nov 18, 2022.