The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference
This report presented a transient-enhanced low dropout voltage (LDO) regulator with an integrated push-pull composite power transistor and an embedded voltage reference (VR). The use of a composite power transistor shifts parasitic poles to higher frequencies, enhancing stability. A recycling folded...
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Nanyang Technological University
2024
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sg-ntu-dr.10356-1784182024-06-21T15:42:56Z The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference Xie, Xinzhe Siek Liter School of Electrical and Electronic Engineering ELSIEK@ntu.edu.sg Engineering Low-dropout (LDO) voltage regulator Bandgap Voltage reference (VR) CMOS This report presented a transient-enhanced low dropout voltage (LDO) regulator with an integrated push-pull composite power transistor and an embedded voltage reference (VR). The use of a composite power transistor shifts parasitic poles to higher frequencies, enhancing stability. A recycling folded cascode (RFC) amplifier achieves higher loop gain, improving load and line regulation. A recovery time enhancement circuit reduces overshoot recovery. The VR employs various resistor types for high-order compensation, with trimming ensuring stable performance across corners. Implemented in GF 55nm technology, the LDO operates at 1V to 1.2V input voltage, delivering up to 50mA current with less than 200mV dropout. It consumes 43.85μA quiescent current, settles within 1μA, and exhibits excellent line regulation (3.76mV/V), load regulation (0.0076mA/mV), and PSRR (-44dB @ 1KHz). Bachelor's degree 2024-06-19T02:04:04Z 2024-06-19T02:04:04Z 2024 Final Year Project (FYP) Xie, X. (2024). The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/178418 https://hdl.handle.net/10356/178418 en A2208-231 application/pdf Nanyang Technological University |
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Engineering Low-dropout (LDO) voltage regulator Bandgap Voltage reference (VR) CMOS |
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Engineering Low-dropout (LDO) voltage regulator Bandgap Voltage reference (VR) CMOS Xie, Xinzhe The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference |
| description |
This report presented a transient-enhanced low dropout voltage (LDO) regulator with an integrated push-pull composite power transistor and an embedded voltage reference (VR). The use of a composite power transistor shifts parasitic poles to higher frequencies, enhancing stability. A recycling folded cascode (RFC) amplifier achieves higher loop gain, improving load and line regulation. A recovery time enhancement circuit reduces overshoot recovery. The VR employs various resistor types for high-order compensation, with trimming ensuring stable performance across corners. Implemented in GF 55nm technology, the LDO operates at 1V to 1.2V input voltage, delivering up to 50mA current with less than 200mV dropout. It consumes 43.85μA quiescent current, settles within 1μA, and exhibits excellent line regulation (3.76mV/V), load regulation (0.0076mA/mV), and PSRR (-44dB @ 1KHz). |
| author2 |
Siek Liter |
| author_facet |
Siek Liter Xie, Xinzhe |
| format |
Final Year Project |
| author |
Xie, Xinzhe |
| author_sort |
Xie, Xinzhe |
| title |
The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference |
| title_short |
The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference |
| title_full |
The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference |
| title_fullStr |
The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference |
| title_full_unstemmed |
The design of a CMOS only low-power low-voltage low-dropout voltage regulator (LDO) with an embedded voltage reference |
| title_sort |
design of a cmos only low-power low-voltage low-dropout voltage regulator (ldo) with an embedded voltage reference |
| publisher |
Nanyang Technological University |
| publishDate |
2024 |
| url |
https://hdl.handle.net/10356/178418 |
| _version_ |
1814047228019343360 |