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

Junil Moon; Jinhoon Hyun; Soo Won Kim

doi:10.1587/elex.13.20160882

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

Junil Moon, Jinhoon Hyun, Soo Won Kim

* Honorary professors

Research output: Contribution to journal › Article › peer-review

4 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 language	English
Article number	20160882
Journal	ieice electronics express
Volume	13
Issue number	23
DOIs	https://doi.org/10.1587/elex.13.20160882
Publication status	Published - 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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10.1587/elex.13.20160882

Cite this

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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.",

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AU - Moon, Junil

AU - Hyun, Jinhoon

AU - Kim, Soo Won

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Y1 - 2016

N2 - 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.

AB - 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.

KW - Capacitor-less low-dropout (LDO) regulator

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KW - System-on-chip

KW - Transient enhancement

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

Abstract

Keywords

ASJC Scopus subject areas

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