A Highly Power-Efficient LDO with Reliable Low Input Voltage Operation
- Title
- A Highly Power-Efficient LDO with Reliable Low Input Voltage Operation
- Alternative Title
- 저전압 입력 전압에서 동작이 가능한 높은 전력효율을 갖는 선형 레귤레이터
- Author(s)
- Woojin Jang
- DGIST Authors
- Woojin Jang ; Junghyup Lee ; Minyoung Song
- Advisor
- 이정협
- Co-Advisor(s)
- Minyoung Song
- Issued Date
- 2024
- Awarded Date
- 2024-02-01
- Type
- Thesis
- Description
- low dropout regulator(LDO);self-oscillating charge pump(SOCP);NMOS pass transistor;highly power-efficient;low VIN operation
- Table Of Contents
-
Ⅰ. Introduction 1
1.1 Background 1
1.1.1 Types of PMIC 1
1.1.2 Structure of power managing for battery-powered SoC 3
ⅠI. Literature Review 7
2.1 Conventional LDOs 7
2.1.1 Conventional ALDOs 7
2.1.2 Conventional DLDOs 8
2.2 ALDOs Targeted of Low Input Voltage 9
2.2.1 Time-based ALDOs 10
2.2.2 ALDOs with multi-stage EA 11
2.3 Pass Transistor under Low VDO conditions 12
2.3.1 Relationship between VDO and IL 13
2.3.2 Pass transistor selection 15
2.3.3 Limitation for lowering VDO in NMOS LDOs 16
ⅠII. Proposed System 19
3.1 System Design 19
3.1.1 Target specification of proposed LDO 19
3.1.2 Overall architecture of proposed LDO 20
3.2 Circuit Design 22
3.2.1 Self-oscillating charge pump(SOCP) 22
3.2.2 Delay cell 24
3.2.3 Invert phase-synchronized SOCP(I-SOCP) 25
3.2.4 Error amplifier(EA) 26
3.3 Stability Analysis 28
ⅠV. Measurement Results and Conclusions 35
4.1 Measurement Results 35
V. Conclusions and Future Works 47
5.1 Conclusions 47
5.2 Future Works 48
References 50
- URI
-
http://hdl.handle.net/20.500.11750/48110
http://dgist.dcollection.net/common/orgView/200000723413
- Degree
- Master
- Publisher
- DGIST
- Related Researcher
-
-
Lee, Junghyup
- Research Interests Analog and Mixed Signal IC Design; Smart Sensor Systems; Bio-medical ICs and Body Channel Communication Systems
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- Files in This Item:
-
There are no files associated with this item.
- Appears in Collections:
- Department of Electrical Engineering and Computer Science Theses Master
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