A 7nm All-Digital Unified Voltage and Frequency Regulator Based on a High-Bandwidth 2-Phase Buck Converter with Package Inductors. - Francois Atallah; Keith A. Bowman; Hoan Nguyen; Jihoon Jeong; Daniel Yingling; Yu Sun; Brad Appel; Anthony Polomik; Mahesh Harinath; Joshua Morelli; Thomas Moore; Nathaniel Reeves; et al. (ISSCC, 2019)