TW200712822A - Low-dropout voltage regulator - Google Patents

Low-dropout voltage regulator

Info

Publication number
TW200712822A
TW200712822A TW094131436A TW94131436A TW200712822A TW 200712822 A TW200712822 A TW 200712822A TW 094131436 A TW094131436 A TW 094131436A TW 94131436 A TW94131436 A TW 94131436A TW 200712822 A TW200712822 A TW 200712822A
Authority
TW
Taiwan
Prior art keywords
operational amplifier
power transistor
feedback network
transconductor
coupled
Prior art date
Application number
TW094131436A
Other languages
English (en)
Other versions
TWI300170B (en
Inventor
Chung-Wei Lin
Original Assignee
Ind Tech Res Inst
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 Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW094131436A priority Critical patent/TWI300170B/zh
Priority to US11/326,049 priority patent/US7218087B2/en
Publication of TW200712822A publication Critical patent/TW200712822A/zh
Application granted granted Critical
Publication of TWI300170B publication Critical patent/TWI300170B/zh

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/575—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices characterised by the feedback circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
TW094131436A 2005-09-13 2005-09-13 Low-dropout voltage regulator TWI300170B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW094131436A TWI300170B (en) 2005-09-13 2005-09-13 Low-dropout voltage regulator
US11/326,049 US7218087B2 (en) 2005-09-13 2006-01-04 Low-dropout voltage regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094131436A TWI300170B (en) 2005-09-13 2005-09-13 Low-dropout voltage regulator

Publications (2)

Publication Number Publication Date
TW200712822A true TW200712822A (en) 2007-04-01
TWI300170B TWI300170B (en) 2008-08-21

Family

ID=37854413

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094131436A TWI300170B (en) 2005-09-13 2005-09-13 Low-dropout voltage regulator

Country Status (2)

Country Link
US (1) US7218087B2 (zh)
TW (1) TWI300170B (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI411871B (zh) * 2010-06-03 2013-10-11 Semiconductor Components Ind 迴圈增益調整電路
TWI656424B (zh) * 2014-01-17 2019-04-11 日商艾普凌科有限公司 電壓調節器及半導體裝置
TWI689803B (zh) * 2018-12-14 2020-04-01 致茂電子股份有限公司 電源供應器及其補償方法
CN111913520A (zh) * 2019-05-10 2020-11-10 意法半导体股份有限公司 频率补偿电路及对应设备

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1580637B1 (en) * 2004-03-15 2008-05-21 Freescale Semiconductor, Inc. Low drop-out DC voltage regulator
US8390491B2 (en) 2011-01-14 2013-03-05 Analog Devices, Inc. Buffer to drive reference voltage
CN102736655B (zh) * 2011-04-07 2014-04-30 鸿富锦精密工业（深圳）有限公司 线性稳压电路
US8841970B2 (en) * 2012-03-22 2014-09-23 Qualcomm Incorporated Low GM transconductor
TWI468895B (zh) * 2012-07-13 2015-01-11 Issc Technologies Corp 低壓降穩壓器與其電子裝置
TWI487278B (zh) * 2013-04-24 2015-06-01 Richtek Technology Corp 數位衛星設備控制信號產生電路及相關的信號產生方法
EP2824531B1 (en) 2013-07-10 2019-09-18 Dialog Semiconductor GmbH Method and circuit for controlled gain reduction of a gain stage
US9395731B2 (en) * 2013-09-05 2016-07-19 Dialog Semiconductor Gmbh Circuit to reduce output capacitor of LDOs
US9665111B2 (en) * 2014-01-29 2017-05-30 Semiconductor Components Industries, Llc Low dropout voltage regulator and method
TWI493314B (zh) * 2014-03-11 2015-07-21 Himax Tech Ltd 低壓差線性穩壓器
DE102015205359B4 (de) * 2015-03-24 2018-01-25 Dialog Semiconductor (Uk) Limited Ruhestrombegrenzung für einen low-dropout-regler bei einer dropout-bedingung
DE102016201171B4 (de) * 2016-01-27 2021-07-22 Dialog Semiconductor (Uk) Limited Anpassbare Verstärkungssteuerung für Spannungsregler
US11209848B2 (en) 2016-06-07 2021-12-28 Analog Devices International Unlimited Company Fast regulator architecture having transistor helper
CN107526388B (zh) * 2016-06-22 2018-10-30 上海和辉光电有限公司 低压差线性稳压器
US10001797B2 (en) * 2016-07-25 2018-06-19 Sandisk Technologies Llc Space and power-saving multiple output regulation circuitry
CN109032230B (zh) * 2017-06-12 2024-02-20 合肥格易集成电路有限公司 一种低压差稳压器
US11556143B2 (en) * 2019-10-01 2023-01-17 Texas Instruments Incorporated Line transient improvement through threshold voltage modulation of buffer-FET in linear regulators
WO2021232426A1 (en) * 2020-05-22 2021-11-25 Telefonaktiebolaget Lm Ericsson (Publ) Circuit and method for compensating output of voltage source, and voltage source
US11625057B2 (en) * 2021-03-04 2023-04-11 United Semiconductor Japan Co., Ltd. Voltage regulator providing quick response to load change
CN115268554B (zh) * 2022-06-16 2024-07-09 中国科学院微电子研究所 一种低压差线性稳压器
CN115421547B (zh) * 2022-09-30 2023-07-25 中国电子科技集团公司第二十四研究所 一种具有跨导增强电路的低压差线性稳压器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5625278A (en) 1993-06-02 1997-04-29 Texas Instruments Incorporated Ultra-low drop-out monolithic voltage regulator
US5929617A (en) 1998-03-03 1999-07-27 Analog Devices, Inc. LDO regulator dropout drive reduction circuit and method
US6188211B1 (en) * 1998-05-13 2001-02-13 Texas Instruments Incorporated Current-efficient low-drop-out voltage regulator with improved load regulation and frequency response
US6225857B1 (en) 2000-02-08 2001-05-01 Analog Devices, Inc. Non-inverting driver circuit for low-dropout voltage regulator
US6573694B2 (en) * 2001-06-27 2003-06-03 Texas Instruments Incorporated Stable low dropout, low impedance driver for linear regulators
US6518737B1 (en) 2001-09-28 2003-02-11 Catalyst Semiconductor, Inc. Low dropout voltage regulator with non-miller frequency compensation
US6690147B2 (en) 2002-05-23 2004-02-10 Texas Instruments Incorporated LDO voltage regulator having efficient current frequency compensation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI411871B (zh) * 2010-06-03 2013-10-11 Semiconductor Components Ind 迴圈增益調整電路
TWI656424B (zh) * 2014-01-17 2019-04-11 日商艾普凌科有限公司 電壓調節器及半導體裝置
TWI689803B (zh) * 2018-12-14 2020-04-01 致茂電子股份有限公司 電源供應器及其補償方法
CN111913520A (zh) * 2019-05-10 2020-11-10 意法半导体股份有限公司 频率补偿电路及对应设备

Also Published As

Publication number Publication date
US7218087B2 (en) 2007-05-15
TWI300170B (en) 2008-08-21
US20070057660A1 (en) 2007-03-15

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Legal Events

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