A 4.5V-Input 0.3-to-1.7V-Output Step-Down Always-Dual-Path DC-DC Converter Achieving 91.5%-Efficiency with 250mΩ-DCR Inductor for Low-Voltage SoCs. - Jae-Young Ko; Yeunhee Huh; Min-Woo Ko; Gyeong-Gu Kang; Gyu-Hyeong Cho; Hyun-Sik Kim (VLSI Circuits, 2021)

2-Tx Digital Envelope-Tracking Supply Modulator Achieving 200MHz Channel Bandwidth and 93.6% Efficiency for 2G/3G/LTE/NR RF Power Amplifiers. - Jun-Suk Bang; Dong-Su Kim; Jeongkwang Lee; Sung-Youb Jung; Young-Hwan Choo; Seungchan Park; Young-Ho Jung; Jae-Young Ko; Takahiro Norniyama; Jongbeom Baek; Jae-Yeol Han; Sang-Han Lee; et al. (ISSCC, 2022)

5G NR RF PA Supply Modulator Supporting 179ns 0.5-to-5.5V Symbol Power Tracking and Envelope Tracking. - Jun-Suk Bang; Dongsu Kim; Young-Hwan Choo; Ik-Hwan Kim; Seungchan Park; Jeongkwang Lee; Sang-Han Lee; Young-Ho Jung; Jae-Young Ko; Sung-Youb Jung; Jae-Yeol Han; Woosik Kim; et al. (VLSI Technology and Circuits, 2023)