TW200634467A - Quick-recovery low dropout linear regulator - Google Patents

Quick-recovery low dropout linear regulator

Info

Publication number
TW200634467A
TW200634467A TW094109911A TW94109911A TW200634467A TW 200634467 A TW200634467 A TW 200634467A TW 094109911 A TW094109911 A TW 094109911A TW 94109911 A TW94109911 A TW 94109911A TW 200634467 A TW200634467 A TW 200634467A
Authority
TW
Taiwan
Prior art keywords
current
quick
linear regulator
low dropout
output current
Prior art date
Application number
TW094109911A
Other languages
Chinese (zh)
Other versions
TWI275919B (en
Inventor
Shen-Yuan Liu
shao-hong Lv
Original Assignee
Sitronix Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sitronix Technology Corp filed Critical Sitronix Technology Corp
Priority to TW94109911A priority Critical patent/TWI275919B/en
Publication of TW200634467A publication Critical patent/TW200634467A/en
Application granted granted Critical
Publication of TWI275919B publication Critical patent/TWI275919B/en

Links

Abstract

This invention relates to a quick-recovery low dropout linear regulator (LDO), which utilizes a current-detection circuit to detect the magnitude of the output current, and the output current compares with a reference current so as to dynamically adjust the bias-current of the 2nd stage amplifier such that the system remains stable even when the output current is high resulting from the damping ratio ζ is still greater than 1. As a result, the output voltage can quickly recover stability from a large and sudden change of the output current.
TW94109911A 2005-03-30 2005-03-30 Quick-recovery low dropout linear regulator TWI275919B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94109911A TWI275919B (en) 2005-03-30 2005-03-30 Quick-recovery low dropout linear regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94109911A TWI275919B (en) 2005-03-30 2005-03-30 Quick-recovery low dropout linear regulator

Publications (2)

Publication Number Publication Date
TW200634467A true TW200634467A (en) 2006-10-01
TWI275919B TWI275919B (en) 2007-03-11

Family

ID=38646090

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94109911A TWI275919B (en) 2005-03-30 2005-03-30 Quick-recovery low dropout linear regulator

Country Status (1)

Country Link
TW (1) TWI275919B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI425336B (en) * 2010-12-06 2014-02-01 Univ Nat Chiao Tung A low-dropout voltage regulator and a use method thereof
TWI456425B (en) * 2012-01-03 2014-10-11 Univ Nat Taipei Technology Method and system for generating small signal model of voltage converter, computer program product
TWI494735B (en) * 2013-04-15 2015-08-01 Novatek Microelectronics Corp Compensation module and voltage regulation device
TWI514104B (en) * 2014-07-11 2015-12-21 Novatek Microelectronics Corp Current source for voltage regulator and voltage regulator thereof
TWI668550B (en) * 2018-06-14 2019-08-11 華邦電子股份有限公司 Current regulating circuit and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5390932B2 (en) * 2009-05-14 2014-01-15 セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー Power circuit
CN109634344A (en) * 2017-03-08 2019-04-16 长江存储科技有限责任公司 A kind of high bandwidth low pressure difference linear voltage regulator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI425336B (en) * 2010-12-06 2014-02-01 Univ Nat Chiao Tung A low-dropout voltage regulator and a use method thereof
TWI456425B (en) * 2012-01-03 2014-10-11 Univ Nat Taipei Technology Method and system for generating small signal model of voltage converter, computer program product
TWI494735B (en) * 2013-04-15 2015-08-01 Novatek Microelectronics Corp Compensation module and voltage regulation device
US9471075B2 (en) 2013-04-15 2016-10-18 Novatek Microelectronics Corp. Compensation module and voltage regulator
TWI514104B (en) * 2014-07-11 2015-12-21 Novatek Microelectronics Corp Current source for voltage regulator and voltage regulator thereof
US9494959B2 (en) 2014-07-11 2016-11-15 Novatek Microelectronics Corp. Current source for voltage regulator and voltage regulator thereof
TWI668550B (en) * 2018-06-14 2019-08-11 華邦電子股份有限公司 Current regulating circuit and method

Also Published As

Publication number Publication date
TWI275919B (en) 2007-03-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees