A 92%-Efficiency 0.828μs Settling Time FC5L Voltage Regulator Featuring Time-Domain Charge Balancing & Flying Capacitor Self-Switching for Wide Dynamic Range & Fast Transient Chiplet Applications

Xichen Sun1; Jingshu Yu1; Xuliang Wang1; Jin Wei2; Junmin Jiang3; Chenchang Zhan3; Yan Wang1; Xiaosen Liu1

10.1109/CICC60959.2024.10529070

2024-04-24

0886-5930

979-8-3503-9407-8

2024 IEEE Custom Integrated Circuits Conference (CICC)

21-24 April 2024

Denver, CO, USA

Power management and delivery for modern complex SoCs such as HPC and AI/ML with advanced 2.5D/3D package has become a major challenge due to rising current demands, shrinking form factors, rapid dynamic responses, and high efficiency across various loading conditions. FIVR and SCVR [1] employ package inductors and high-density MIM capacitors to achieve high current density and vertical power delivery (VPD), but both rely on advanced packaging technology with high costs. Hybrid topologies like Flying Capacitor Multilevel Converter (FCML) [2]–[5] incorporates more capacitors and power switches to enhance the throughput power without incurring additional switching losses, but has poor light load efficiency and response speed [6].

其他

EI

1.Tsinghua University, Beijing, China
2.Peking University, Beijing, China
3.Southern University of Science and Technology, Shenzhen, China

Xichen Sun,Jingshu Yu,Xuliang Wang,et al. A 92%-Efficiency 0.828μs Settling Time FC5L Voltage Regulator Featuring Time-Domain Charge Balancing & Flying Capacitor Self-Switching for Wide Dynamic Range & Fast Transient Chiplet Applications[C],2024.