Presentation 2012-08-03
A Fast-Transient-Response Digital Low-Dropout Regulator Comprising Thin-Oxide MOS Transistors in 40-nm CMOS process
Masafumi ONOUCHI, Kazuo OTSUGA, Yasuto IGARASHI, Toyohito IKEYA, Sadayuki MORITA, Koichiro ISHIBASHI, Kazumasa YANAGISAWA,
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Abstract(in English) A digital low-dropout (LDO) regulator comprising only thin-oxide MOS transistors was developed. The input voltage to the LDO is set to be higher than the nominal overdrive voltage of thin-oxide MOS transistors by applying the proposed overdrive-voltage relaxation scheme. In the LDO, fast transient response can be achieved by applying an output capacitor-less design, which is based on power-MOS features as follows: 1-GHz switching and the small number of levels whereas a wide range of load current (400μA-250mA) can be covered by applying the proposed power-MOS configuration. The LDO occupies only 0.057mm^2 area using 40-nm CMOS technology, and the measured the transient response time is only 0.07μs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Low-dropout regulator / digital control / fast-transient response / DVFS
Paper # SDM2012-82,ICD2012-50
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Committee ICD
Conference Date 2012/7/26(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Fast-Transient-Response Digital Low-Dropout Regulator Comprising Thin-Oxide MOS Transistors in 40-nm CMOS process
Sub Title (in English)
Keyword(1) Low-dropout regulator
Keyword(2) digital control
Keyword(3) fast-transient response
Keyword(4) DVFS
1st Author's Name Masafumi ONOUCHI
1st Author's Affiliation Renesas Electronics Corp.()
2nd Author's Name Kazuo OTSUGA
2nd Author's Affiliation Renesas Electronics Corp.
3rd Author's Name Yasuto IGARASHI
3rd Author's Affiliation Renesas Electronics Corp.
4th Author's Name Toyohito IKEYA
4th Author's Affiliation Renesas Electronics Corp.
5th Author's Name Sadayuki MORITA
5th Author's Affiliation Renesas Electronics Corp.
6th Author's Name Koichiro ISHIBASHI
6th Author's Affiliation The University of Electro-Communications
7th Author's Name Kazumasa YANAGISAWA
7th Author's Affiliation Renesas Electronics Corp.
Date 2012-08-03
Paper # SDM2012-82,ICD2012-50
Volume (vol) vol.112
Number (no) 170
Page pp.pp.-
#Pages 6
Date of Issue