A high efficiency and compact size 65nm power management module with 1.2v low-voltage PWM controller for UWB system application

Yu Huei Lee*, Shih Jung Wang, Yao Yi Yang, Kuo Lin Zheng, Po Fung Chen, Chun Yu Hsieh, Ming Hsin Huang, Yu Nong Tsai, Yu Zhou Ke, Ke-Horng Chen, Yi Kuang Chen, Chen Chih Huang, Ying Hsi Lin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This 65 nm power management module with a 1.2 V low-voltage PWM controller aims to integrate with an ultra-wideband (UWB) system to get high efficiency and compact size. The on-chip pre-regulator with power conditioning circuit provides a constant and noiseless supply voltage with high conversion efficiency. Thus, the voltage variation of the battery has less effect on the low-voltage PWM controller. Besides, the proposed compensation enhancement multistage amplifier (CEMA) increases system loop gain and stabilizes the system through the multistage structure suitable for low voltage operation. Moreover, the CEMA utilizes two small on-chip capacitors (5 pF and 2 pF) to stabilize the power management module. Unlike the conventional method, no additional off-dop components are needed to compensate this power management. With excellent line/load transient response, the proposed power management has the highest efficiency about 92% and 0.995 mm2 silicon die area adequate to the SoC application.

Original languageEnglish
Title of host publicationProceedings of the European Solid-State Circuits Conference
Pages109-118
Number of pages10
Volume17
Edition2
StatePublished - 1 Apr 2010

Publication series

NameInternational Journal of Electrical Engineering
PublisherChinese Institute of Electrical Engineering
ISSN (Print)1812-3031

Keywords

  • DC-DC converter
  • Load transient response
  • Power conversion efficiency
  • Power management
  • UWB system

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