High-PSRR Low-dropout Regulator with Fast Transient Response Time and Low Output Peak Voltage
This study proposes the feed-forward ripple cancellation (FFRC) technique to low drop-out (LDO) regulator. By adding load tracking impedance to the gate of pass transistor, it is possible to secure stability with a 100-nF capacitor having low ESR and be obtained less than 35 ns response time. In all...
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| Published in | Journal of semiconductor technology and science Vol. 21; no. 4; pp. 292 - 296 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
대한전자공학회
01.08.2021
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1598-1657 2233-4866 |
| DOI | 10.5573/JSTS.2021.21.4.292 |
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| Abstract | This study proposes the feed-forward ripple cancellation (FFRC) technique to low drop-out (LDO) regulator. By adding load tracking impedance to the gate of pass transistor, it is possible to secure stability with a 100-nF capacitor having low ESR and be obtained less than 35 ns response time. In all frequency bands, a power supply rejection ratio (PSRR) less than -70 dB is obtained when the load current is 10 mA. The circuit is implemented in 65-nm CMOS process. KCI Citation Count: 0 |
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| AbstractList | This study proposes the feed-forward ripple cancellation (FFRC) technique to low drop-out (LDO) regulator. By adding load tracking impedance to the gate of pass transistor, it is possible to secure stability with a 100-nF capacitor having low ESR and be obtained less than 35 ns response time. In all frequency bands, a power supply rejection ratio (PSRR) less than -70 dB is obtained when the load current is 10 mA. The circuit is implemented in 65-nm CMOS process. KCI Citation Count: 0 |
| Author | Junyoung Song Nahyun Kim |
| Author_xml | – sequence: 1 givenname: Nahyun surname: Kim fullname: Kim, Nahyun – sequence: 2 givenname: Junyoung surname: Song fullname: Song, Junyoung |
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| Keywords | fast transient response time Low-dropout (LDO) regulator low output peak voltage power-supply rejection ratio (PSRR) |
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| Snippet | This study proposes the feed-forward ripple cancellation (FFRC) technique to low drop-out (LDO) regulator. By adding load tracking impedance to the gate of... |
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| Title | High-PSRR Low-dropout Regulator with Fast Transient Response Time and Low Output Peak Voltage |
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