Design of low-power, fast-transient-response, capacitor-less low-dropout regulator for mobile applications

Junil Moon, Jinhoon Hyun, Soo Won Kim

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    This paper presents a capacitor-less low-dropout (LDO) regulator for on-chip mobile applications. An additional push-pull current with a capacitive coupling circuit is proposed to significantly enhance the transient response of the LDO regulator. The proposed LDO regulator can deliver an output current of 100 mA with a minimum dropout voltage of 0.4 V. The circuit was modeled and implemented in a 0.35-µm CMOS process with a die area of 0.22 mm2. The experimental results show that the LDO regulator can be recovered within 0.5 µs at a voltage spike less than 90 mV.

    Original languageEnglish
    Article number20160882
    Journalieice electronics express
    Volume13
    Issue number23
    DOIs
    Publication statusPublished - 2016

    Keywords

    • Capacitor-less low-dropout (LDO) regulator
    • Regulator
    • System-on-chip
    • Transient enhancement

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Electrical and Electronic Engineering

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