A 1.3V input fast-transient-response time digital low-dropout regulator with a VSSa generator for DVFS system

  • Min, Young-Jae
  • Jeong, Chan-Hui
  • Moon, Junil
  • Han, Youngsun
  • Kim, Soo-Won
  • ... Kim, Chulwoo
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초록

A fast transient-response digital low-dropout regulator ( D-LDO) is presented. To achieve fast-transient time, a VSSa generator and a coarse-fine power-MOS array techniques are proposed. The proposed D-LDO is implemented in a 65 nm CMOS technology with a die area of 0.067 mm(2). The measured recovery time is less than 0.32 us when the load step-up time is 0.1 us from 2.5mA to 120 mA, and the step-down time is 0.1 us at 1.2V of supply voltage. Moreover, the voltage spikes are less than 190mV.

키워드

low-dropout (LDO) regulatordigital low-dropout (D-LDO) regulatorfast-transient-response timedynamic voltage frequency scaling (DVFS)LOW-QUIESCENT CURRENTFREQUENCY COMPENSATION SCHEMEVOLTAGE
제목
A 1.3V input fast-transient-response time digital low-dropout regulator with a VSSa generator for DVFS system
저자
Min, Young-JaeJeong, Chan-HuiMoon, JunilHan, YoungsunKim, Soo-WonKim, Chulwoo
DOI
10.1587/elex.14.20170461
발행일
2017-07-10
유형
Article
저널명
IEICE Electronics Express
14
13