Transient performance estimation of DLDO by building model in MATLAB Simulink

Kai Syuan Chang, Chien Hung Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The digital low dropout (LDO) voltage regulator are widely used in digital circuits which has multiple power domain and large dynamic supply ranges in System on Chip (SoC) application. The closed-loop transfer function of digital LDO is hard to derive because of two factors. One is mixture of discrete- and continuous-time operation. The other is the nonlinear comparator gain. However, the availability of open-loop transfer function is also limited by the non-constant feedback factor. Therefore, the prediction of digital LDO performance in the early design stage is difficult. Moreover, designer cannot explore the design space effectively. This paper builds a time-domain behavior model in MATLAB/Simulink to estimate transient response performance of DLDO and voltage ripple in steady state. This paper avoid complex mathematical operations. The result of the estimation is compared with transistor level simulation by HSPICE.

Original languageEnglish
Title of host publication2017 IEEE Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics
Subtitle of host publicationAdvancing Circuits and Systems Innovation for Connected World, PrimeAsia 2017 - Proceedings
PublisherIEEE Computer Society
Pages57-60
Number of pages4
ISBN (Electronic)9781538605240
DOIs
Publication statusPublished - 2018 Feb 2
Event2017 IEEE Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2017 - Kuala Lumpur, Malaysia
Duration: 2017 Oct 312017 Nov 2

Publication series

NameAsia Pacific Conference on Postgraduate Research in Microelectronics and Electronics
Volume2017-October
ISSN (Print)2159-2144
ISSN (Electronic)2159-2160

Other

Other2017 IEEE Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2017
CountryMalaysia
CityKuala Lumpur
Period17-10-3117-11-02

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Education

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