A 1.23W/mm2 83.7%-Efficiency 400MHz 6-Phase Fully Integrated Buck Converter in 28nm CMOS with On-Chip Capacitor Dynamic Re-Allocation for Inter-Inductor Current Balancing and Fast DVS of 75mV/ns. - Jeong-Hyun Cho; Dong-Kyu Kim; Hong-Hyun Bae; Yong-Jin Lee; Seok-Tae Koh; Young-Hwan Choo; Ji-Seon Paek; Hyun-Sik Kim (ISSCC, 2022)

A 97.6%-Efficient 1-2MHz Hysteretic Buck Converter with 7V/μs DVS-Rate Enabled by Isosceles-Triangular Shunt Current Push-Pull Technique. - Hong-Hyun Bae; Jeong-Hyun Cho; Gyeong-Gu Kang; Yousung Park; Hyun-Sik Kim (VLSI Technology and Circuits, 2022)

A Fully-Integrated 0.9W/mm2 79.1%-Efficiency 200MHz Multi-Phase Buck Converter with Flying-Capacitor-Based Inter-Inductor Current Balancing Technique. - Jeong-Hyun Cho; Hong-Hyun Bae; Gyu-Wan Lim; Tae-Hwang Kong; Jun-Hyeok Yang; Hyun-Sik Kim (VLSI Technology and Circuits, 2022)

A Monolithic 48V-to-1V 10A Quadruple Step-Down DC-DC Converter with Hysteretic Copied On-Time 4-Phase Control and 2× Slew Rate All-Hysteretic Mode. - Hyun-Ki Han; Min-Woo Ko; Jeong-Hyun Cho; Gyeong-Gu Kang; Seok-Tae Koh; Hong-Hyun Bae; Hyun-Sik Kim (VLSI Technology and Circuits, 2022)

A Fully Integrated Multi-Phase Buck Converter With On-Chip Capacitor Dynamic Re-Allocation and Fine-Grained Phase-Shedding Techniques. - Jeong-Hyun Cho; Dong-Kyu Kim; Hong-Hyun Bae; Yong-Jin Lee; Seok-Tae Koh; Young-Hwan Choo; Ji-Seon Paek; Hyun-Sik Kim (IEEE J. Solid State Circuits, 2022)

A 7V/μs-DVS Class-G Digital-Shunt-Aided Buck Voltage Regulator Achieving a 7% Dynamic-Efficiency Drop at a 600kHz DVS Occurrence Frequency in 28nm CMOS. - Hong-Hyun Bae; Jeong-Hyun Cho; Kihyun Kim; Seunghwa Shin; Doojin Jang; Jun-Hyeok Yang; Hyun-Sik Kim (CICC, 2024)

28.1 A Fully Integrated, Domino-Like-Buffered Analog LDO Achieving -28dB Worst-Case Power-Supply Rejection Across the Frequency Spectrum from 10Hz to 1GHz with 50pF On-Chip Capacitance. - Jun-Gi Lee; Hong-Hyun Bae; Seunghyun Jang; Hyun-Sik Kim (ISSCC, 2024)

14.10 34.7A/mm2 Scalable Distributed All-Digital 6×6 Dot-LDOs Featuring Freely Linkable Current-Sharing Network: A Fine-Grained On-Chip Power Delivery Solution in 28nm CMOS. - Yong-Jin Lee; Woojin Jang; Hong-Hyun Bae; Jeong-Hyun Cho; Hyun-Sik Kim (ISSCC, 2024)

A Fully Integrated Multi-Phase Voltage Regulator With Flying-Capacitor-Based Inter-Inductor Current Self-Balancing Scheme and Charge-Recycling Gate Driver. - Jeong-Hyun Cho; Hong-Hyun Bae; Gyu-Wan Lim; Tae-Hwang Kong; Jun-Hyeok Yang; Hyun-Sik Kim (IEEE J. Solid State Circuits, 2024)