M. Huang, Y. Lu, S. -W. Sin, U. Seng-Pan and R. P. Martins, "A Fully Integrated Digital LDO With Coarse–Fine-Tuning and Burst-Mode Operation," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 63, no. 7, pp. 683-687, July 2016.

Z. Ding, W. Rhee and Z. Wang, "A VCO-dedicated digital LDO with multi-comparator coarse loop and 1-bit ΔΣ fine loop for robust frequency generation," 2018 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-4.

J. -G. Kang, J. Park, M. -G. Jeong and C. Yoo, "Digital Low-Dropout Regulator With Voltage-Controlled Oscillator Based Control," in IEEE Transactions on Power Electronics, vol. 37, no. 6, pp. 6951-6961, June 2022.

S. Kundu and C. H. Kim, "A multi-phase VCO quantizer based adaptive digital LDO in 65nm CMOS technology," 2017 IEEE International Symposium on Circuits and Systems (ISCAS), pp. 1-4.

S. Kundu, M. Liu, S. -J. Wen, R. Wong and C. H. Kim, "A Fully Integrated Digital LDO With Built-In Adaptive Sampling and Active Voltage Positioning Using a Beat-Frequency Quantizer," in IEEE Journal of Solid-State Circuits, vol. 54, no. 1, pp. 109-120, Jan. 2019.