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Design Considerations of Distributed and Centralized Switched-Capacitor Converters for Power Supply On-Chip
Lu, Yan1; Jiang, Junmin2; Ki, Wing-Hung2
2018-06
Source PublicationIEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
ISSN2168-6777
Volume6Issue:2Pages:515-525
Abstract

On-chip power supply distribution faces the challenges of high and fast-changing load current, limited metal layers and decoupling capacitors, efficiency, and thermal issues. This paper mainly discusses system-level design considerations of both distributed and centralized fully integrated voltage regulators. In particular, a ring-shaped switched-capacitor dc-dc converter that has a unity-gain frequency a few times higher than its switching frequency is introduced with comprehensive considerations, and optimizing the number of time-interleaving phases (power cells) is detailed. Design issues such as on-chip power-rail routing parasitics, input capacitor and input ripple, and phase mismatch between power cells are addressed. Furthermore, a couple of possible extensions of the converter-ring architecture are proposed, which include power management of the active-matrix light-emitting diode array in a microdisplay system, cascading multiple nMOS-LDO regulators for granular power, and on-chip power converter grid with flipped-chip packaging.

KeywordActive-matrix Light-emitting Diode (Amled) Amplifier Charge Pump Converter Ring Dc-dc Converter Digital Control Dynamic Voltage Scaling (Dvs) Fully Integrated Voltage Regulator (Fivr) Hybrid Converter Low-dropout Regulator (Ldo) Multilevel Multiphase Resonant Converter Switched-capacitor (Sc) Power Converter Voltage-controlled Oscillator (Vco)
DOI10.1109/JESTPE.2017.2747094
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000431443200008
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
The Source to ArticleWOS
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Citation statistics
Cited Times [WOS]:5   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
Affiliation1.State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macao, China
2.Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Lu, Yan,Jiang, Junmin,Ki, Wing-Hung. Design Considerations of Distributed and Centralized Switched-Capacitor Converters for Power Supply On-Chip[J]. IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS,2018,6(2):515-525.
APA Lu, Yan,Jiang, Junmin,&Ki, Wing-Hung.(2018).Design Considerations of Distributed and Centralized Switched-Capacitor Converters for Power Supply On-Chip.IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS,6(2),515-525.
MLA Lu, Yan,et al."Design Considerations of Distributed and Centralized Switched-Capacitor Converters for Power Supply On-Chip".IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS 6.2(2018):515-525.
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