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A 13.5-nA Quiescent Current LDO With Adaptive Ultra-Low-Power Mode for Low-Power IoT Applications
- Issue Date
- Sep-2023
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- Low-dropout regulator (LDO); low-quiescent current; low voltage; adaptive biasing; power management integrated circuit (PMIC); ultra-low-power mode
- Citation
- IEEE Transactions on Circuits and Systems II: Express Briefs, v.70, no.9, pp 3278 - 3282
- Pages
- 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Transactions on Circuits and Systems II: Express Briefs
- Volume
- 70
- Number
- 9
- Start Page
- 3278
- End Page
- 3282
- ISSN
- 1549-7747
1558-3791
- Abstract
- This brief presents a low-dropout regulator (LDO) for power-efficient Internet of Things (IoT) devices. When IoT devices are in low-power standby mode, the proposed LDO senses the load current and enters an ultra-low-power mode to enable an extremely low-power system. The proposed LDO alternates between two modes of operation. One is the ultra-low-power mode in which the core circuit of the LDO is turned off to save power, and the other is an active mode in which all circuit components are on. The successful operation of the proposed scheme is demonstrated by implementing and measuring silicon LDO chips, resulting in an extremely low-quiescent current of 13.5 nA and a superior figure-of-merit (FOM).
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Related Researcher
- Roh, Jeong jin
- ERICA 공학대학 (SCHOOL OF ELECTRICAL ENGINEERING)