A single-inductor dual-output converter with switchable digital-or-analog low-dropout regulator for ripple suppression and high efficiency operation

Yu Huei Lee; Wei Chung Chen; Chao Chang Chiu; Shen Yu Peng; Kuan Yu Chu; Ke-Horng Chen; Ying Hsi Lin; Tsung Yen Tsai; Chen Chih Huang; Chao Cheng Lee; Yu Wen Chen; Chao Chiun Liang; Chang An Ho; Tun Hao Yu

doi:10.1109/IPEC.2012.6522666

A single-inductor dual-output converter with switchable digital-or-analog low-dropout regulator for ripple suppression and high efficiency operation

Yu Huei Lee, Wei Chung Chen, Chao Chang Chiu, Shen Yu Peng, Kuan Yu Chu, Ke-Horng Chen, Ying Hsi Lin, Tsung Yen Tsai, Chen Chih Huang, Chao Cheng Lee, Yu Wen Chen, Chao Chiun Liang, Chang An Ho, Tun Hao Yu

Department of Electrical and Computer Engineering

Research output: Contribution to conference › Paper › peer-review

4 Scopus citations

Abstract

A single-inductor dual-output (SIDO) converter with the switchable digital-or-analog (D/A) low-dropout (LDO) regulator achieves an analog dynamic voltage scaling (ADVS) function for ripple suppression and high efficiency in system-on-a-chip (SoC). The ADVS function helps dynamically adjust the dropout voltage of the switchable D/A LDO regulator with analog operation for ripple suppression according to the load current. On other hand, the switchable D/A LDO regulator activates the digital operation for high efficiency at light loads since the dropout voltage of the LDO regulator can be further reduced. Besides, the bidirectional asynchronous signal pipeline (BASP) can realize the 50nA quiescent current in digital LDO regulator. This chip was fabricated by the 40 nm CMOS process. Experimental results demonstrate the switchable LDO regulator operation with the peak efficiency of 92% and the 7 mV output voltage ripple at 200 mA load because of the ripple suppression. The efficiency can be kept higher than 83% even the load current is 1 mA.

Original language	English
Pages	225-228
Number of pages	4
DOIs	https://doi.org/10.1109/IPEC.2012.6522666
State	Published - 1 Dec 2012
Event	2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012 - Kobe, Japan Duration: 12 Nov 2012 → 14 Nov 2012

Conference

Conference	2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012
Country/Territory	Japan
City	Kobe
Period	12/11/12 → 14/11/12

Access to Document

10.1109/IPEC.2012.6522666

Cite this

Lee, Y. H., Chen, W. C., Chiu, C. C., Peng, S. Y., Chu, K. Y., Chen, K.-H., Lin, Y. H., Tsai, T. Y., Huang, C. C., Lee, C. C., Chen, Y. W., Liang, C. C., Ho, C. A., & Yu, T. H. (2012). A single-inductor dual-output converter with switchable digital-or-analog low-dropout regulator for ripple suppression and high efficiency operation. 225-228. Paper presented at 2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012, Kobe, Japan. https://doi.org/10.1109/IPEC.2012.6522666

@conference{5fc4b5415dfd400bbc05b678abf3ecdf,

title = "A single-inductor dual-output converter with switchable digital-or-analog low-dropout regulator for ripple suppression and high efficiency operation",

abstract = "A single-inductor dual-output (SIDO) converter with the switchable digital-or-analog (D/A) low-dropout (LDO) regulator achieves an analog dynamic voltage scaling (ADVS) function for ripple suppression and high efficiency in system-on-a-chip (SoC). The ADVS function helps dynamically adjust the dropout voltage of the switchable D/A LDO regulator with analog operation for ripple suppression according to the load current. On other hand, the switchable D/A LDO regulator activates the digital operation for high efficiency at light loads since the dropout voltage of the LDO regulator can be further reduced. Besides, the bidirectional asynchronous signal pipeline (BASP) can realize the 50nA quiescent current in digital LDO regulator. This chip was fabricated by the 40 nm CMOS process. Experimental results demonstrate the switchable LDO regulator operation with the peak efficiency of 92% and the 7 mV output voltage ripple at 200 mA load because of the ripple suppression. The efficiency can be kept higher than 83% even the load current is 1 mA.",

author = "Lee, {Yu Huei} and Chen, {Wei Chung} and Chiu, {Chao Chang} and Peng, {Shen Yu} and Chu, {Kuan Yu} and Ke-Horng Chen and Lin, {Ying Hsi} and Tsai, {Tsung Yen} and Huang, {Chen Chih} and Lee, {Chao Cheng} and Chen, {Yu Wen} and Liang, {Chao Chiun} and Ho, {Chang An} and Yu, {Tun Hao}",

year = "2012",

month = dec,

day = "1",

doi = "10.1109/IPEC.2012.6522666",

language = "English",

pages = "225--228",

note = "2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012 ; Conference date: 12-11-2012 Through 14-11-2012",

}

Lee, YH, Chen, WC, Chiu, CC, Peng, SY, Chu, KY, Chen, K-H, Lin, YH, Tsai, TY, Huang, CC, Lee, CC, Chen, YW, Liang, CC, Ho, CA & Yu, TH 2012, 'A single-inductor dual-output converter with switchable digital-or-analog low-dropout regulator for ripple suppression and high efficiency operation', Paper presented at 2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012, Kobe, Japan, 12/11/12 - 14/11/12 pp. 225-228. https://doi.org/10.1109/IPEC.2012.6522666

A single-inductor dual-output converter with switchable digital-or-analog low-dropout regulator for ripple suppression and high efficiency operation. / Lee, Yu Huei; Chen, Wei Chung; Chiu, Chao Chang et al.
2012. 225-228 Paper presented at 2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012, Kobe, Japan.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - A single-inductor dual-output converter with switchable digital-or-analog low-dropout regulator for ripple suppression and high efficiency operation

AU - Lee, Yu Huei

AU - Chen, Wei Chung

AU - Chiu, Chao Chang

AU - Peng, Shen Yu

AU - Chu, Kuan Yu

AU - Chen, Ke-Horng

AU - Lin, Ying Hsi

AU - Tsai, Tsung Yen

AU - Huang, Chen Chih

AU - Lee, Chao Cheng

AU - Chen, Yu Wen

AU - Liang, Chao Chiun

AU - Ho, Chang An

AU - Yu, Tun Hao

PY - 2012/12/1

Y1 - 2012/12/1

N2 - A single-inductor dual-output (SIDO) converter with the switchable digital-or-analog (D/A) low-dropout (LDO) regulator achieves an analog dynamic voltage scaling (ADVS) function for ripple suppression and high efficiency in system-on-a-chip (SoC). The ADVS function helps dynamically adjust the dropout voltage of the switchable D/A LDO regulator with analog operation for ripple suppression according to the load current. On other hand, the switchable D/A LDO regulator activates the digital operation for high efficiency at light loads since the dropout voltage of the LDO regulator can be further reduced. Besides, the bidirectional asynchronous signal pipeline (BASP) can realize the 50nA quiescent current in digital LDO regulator. This chip was fabricated by the 40 nm CMOS process. Experimental results demonstrate the switchable LDO regulator operation with the peak efficiency of 92% and the 7 mV output voltage ripple at 200 mA load because of the ripple suppression. The efficiency can be kept higher than 83% even the load current is 1 mA.

AB - A single-inductor dual-output (SIDO) converter with the switchable digital-or-analog (D/A) low-dropout (LDO) regulator achieves an analog dynamic voltage scaling (ADVS) function for ripple suppression and high efficiency in system-on-a-chip (SoC). The ADVS function helps dynamically adjust the dropout voltage of the switchable D/A LDO regulator with analog operation for ripple suppression according to the load current. On other hand, the switchable D/A LDO regulator activates the digital operation for high efficiency at light loads since the dropout voltage of the LDO regulator can be further reduced. Besides, the bidirectional asynchronous signal pipeline (BASP) can realize the 50nA quiescent current in digital LDO regulator. This chip was fabricated by the 40 nm CMOS process. Experimental results demonstrate the switchable LDO regulator operation with the peak efficiency of 92% and the 7 mV output voltage ripple at 200 mA load because of the ripple suppression. The efficiency can be kept higher than 83% even the load current is 1 mA.

UR - http://www.scopus.com/inward/record.url?scp=84881045741&partnerID=8YFLogxK

U2 - 10.1109/IPEC.2012.6522666

DO - 10.1109/IPEC.2012.6522666

M3 - Paper

AN - SCOPUS:84881045741

SP - 225

EP - 228

T2 - 2012 IEEE Asian Solid-State Circuits Conference, A-SSCC 2012

Y2 - 12 November 2012 through 14 November 2012

ER -

A single-inductor dual-output converter with switchable digital-or-analog low-dropout regulator for ripple suppression and high efficiency operation

Abstract

Conference

Access to Document

Other files and links

Fingerprint

Cite this