IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
Design of low-power, fast-transient-response, capacitor-less low-dropout regulator for mobile applications
Junil MoonJinhoon HyunSoo-won Kim
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2016 Volume 13 Issue 23 Pages 20160882

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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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© 2016 by The Institute of Electronics, Information and Communication Engineers
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