Fast-transient capacitor-less low-dropout regulator with assistant push-pull output stage using bootstrap technique

An output-capacitor-less low-dropout regulator (LDR) with an assistant push-pull output stage using a bootstrap technique is proposed. By utilising such a technique, the proposed LDR is able to achieve a fast-transient response. The proposed LDR was implemented in a standard 0.35 μm CMOS process. Me...

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Bibliographic Details
Published in:Electronics letters 2014-10, Vol.50 (22), p.1628-1630
Main Authors: Kim, Youngil, Lee, Sangsun
Format: Article
Language:English
Subjects:
assistant push‐pull output stage
bootstrap circuits
bootstrap technique
CMOS
CMOS integrated circuits
current 1 mA to 200 mA
Electric potential
fast‐transient capacitor‐less low‐dropout regulator
fast‐transient response
LDR
Power electronics, energy conversion and sustainability
Regulators
size 0.35 mum
standard CMOS process
Switching
time 500 ns
transient response
Voltage
voltage 375 mV
voltage regulators
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Description
Summary:An output-capacitor-less low-dropout regulator (LDR) with an assistant push-pull output stage using a bootstrap technique is proposed. By utilising such a technique, the proposed LDR is able to achieve a fast-transient response. The proposed LDR was implemented in a standard 0.35 μm CMOS process. Measurement results show that the undershoot of the output voltage is 375 mV at the condition of the load current switching from 1 to 200 mA at a rise time of 500 ns.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2014.2464