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TWI372955B - Low drop-out voltage regulator with efficient frequency compensation - Google Patents

Low drop-out voltage regulator with efficient frequency compensation

Info

Publication number
TWI372955B
TWI372955B TW097129503A TW97129503A TWI372955B TW I372955 B TWI372955 B TW I372955B TW 097129503 A TW097129503 A TW 097129503A TW 97129503 A TW97129503 A TW 97129503A TW I372955 B TWI372955 B TW I372955B
Authority
TW
Taiwan
Prior art keywords
voltage regulator
out voltage
frequency compensation
low drop
efficient frequency
Prior art date
Application number
TW097129503A
Other languages
English (en)
Other versions
TW201007410A (en
Inventor
Ying Yao Lin
Cheng Chung Hsu
Original Assignee
Pixart Imaging Inc
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 Pixart Imaging Inc filed Critical Pixart Imaging Inc
Priority to TW097129503A priority Critical patent/TWI372955B/zh
Priority to US12/357,382 priority patent/US8080982B2/en
Publication of TW201007410A publication Critical patent/TW201007410A/zh
Application granted granted Critical
Publication of TWI372955B publication Critical patent/TWI372955B/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

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)
TW097129503A 2008-08-04 2008-08-04 Low drop-out voltage regulator with efficient frequency compensation TWI372955B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW097129503A TWI372955B (en) 2008-08-04 2008-08-04 Low drop-out voltage regulator with efficient frequency compensation
US12/357,382 US8080982B2 (en) 2008-08-04 2009-01-21 Low drop-out voltage regulator with efficient frequency compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW097129503A TWI372955B (en) 2008-08-04 2008-08-04 Low drop-out voltage regulator with efficient frequency compensation

Publications (2)

Publication Number Publication Date
TW201007410A TW201007410A (en) 2010-02-16
TWI372955B true TWI372955B (en) 2012-09-21

Family

ID=41607633

Family Applications (1)

Application Number Title Priority Date Filing Date
TW097129503A TWI372955B (en) 2008-08-04 2008-08-04 Low drop-out voltage regulator with efficient frequency compensation

Country Status (2)

Country Link
US (1) US8080982B2 (zh)
TW (1) TWI372955B (zh)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9240714B2 (en) * 2010-12-22 2016-01-19 Nokia Technologies Oy Voltage converter using graphene capacitors
US8575903B2 (en) 2010-12-23 2013-11-05 Texas Instruments Incorporated Voltage regulator that can operate with or without an external power transistor
TWI437409B (zh) 2011-06-24 2014-05-11 Etron Technology Inc 可變電壓產生電路
CN102290806B (zh) * 2011-08-24 2013-11-27 北京经纬恒润科技有限公司 Ldo输出过压保护电路及使用该保护电路的ldo
CN103019288A (zh) * 2011-09-27 2013-04-03 联发科技（新加坡）私人有限公司 电压调节器
US9520781B2 (en) * 2012-10-11 2016-12-13 Earl W McCune, Jr. Rapid-transition DC-DC converter
KR102076667B1 (ko) 2013-01-07 2020-02-12 삼성전자주식회사 저전압 강하 레귤레이터
CN103092245B (zh) * 2013-01-09 2014-08-20 卓捷创芯科技（深圳）有限公司 一种超低功耗的低压差稳压电源电路与射频识别标签
KR102153907B1 (ko) 2013-12-11 2020-09-10 삼성전자주식회사 전압 레귤레이터, 메모리 컨트롤러 및 그것의 전압 공급 방법
US9645591B2 (en) 2014-01-09 2017-05-09 Qualcomm Incorporated Charge sharing linear voltage regulator
US9882472B2 (en) * 2014-09-25 2018-01-30 Intel Corporation Techniques for power supply topologies with capacitance management to reduce power loss associated with charging and discharging when cycling between power states
CN104750155B (zh) * 2015-04-13 2016-09-21 上海菱沃铂智能技术有限公司 一种带外接电容检测功能的ldo电路
US10254812B1 (en) * 2017-12-13 2019-04-09 Cypress Semiconductor Corporation Low inrush circuit for power up and deep power down exit
KR20200010830A (ko) 2018-07-23 2020-01-31 삼성전자주식회사 동적으로 출력 전압을 변경하는 스위칭 레귤레이터 및 이를 포함하는 전원 회로
CN112327987B (zh) 2020-11-18 2022-03-29 上海艾为电子技术股份有限公司 一种低压差线性稳压器及电子设备
US11409313B2 (en) * 2020-12-30 2022-08-09 Qualcomm Incorporated Voltage reference architecture
CN113110670B (zh) * 2021-04-15 2022-07-08 杭州加速科技有限公司 一种提高电源输出电压稳定性的控制系统及控制方法
US20240012438A1 (en) * 2022-07-05 2024-01-11 Mediatek Inc. Electronic system using a power regulator with reduced inrush current

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5686821A (en) * 1996-05-09 1997-11-11 Analog Devices, Inc. Stable low dropout voltage regulator controller
JP2001282372A (ja) * 2000-03-31 2001-10-12 Seiko Instruments Inc レギュレータ
US6690147B2 (en) * 2002-05-23 2004-02-10 Texas Instruments Incorporated LDO voltage regulator having efficient current frequency compensation
US7088082B2 (en) * 2003-12-16 2006-08-08 Quick Logic Corporation Regulator with variable capacitor for stability compensation
US8115463B2 (en) * 2008-08-26 2012-02-14 Texas Instruments Incorporated Compensation of LDO regulator using parallel signal path with fractional frequency response

Also Published As

Publication number Publication date
US20100026252A1 (en) 2010-02-04
TW201007410A (en) 2010-02-16
US8080982B2 (en) 2011-12-20

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