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An External-Capacitor-Less High-PSR Low-Dropout Regulator Using an Adaptive Supply-Ripple Cancellation Technique to the Body-Gate
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- Authors
- Issue Date
- 2018
- Publisher
- IEEE
- Citation
- 2018 23RD ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC), pp.299-300
- Abstract
- This work presents an external-capacitor-less low-dropout regulator (LDO) that provides high power-supply rejection (PSR) at all low-to-high frequencies. Using the proposed adaptive supply-ripple cancellation (ASRC) technique, where the ripples copied from the supply are injected adaptively to the body-gate, the PSR-hump of conventional LDOs can be suppressed significantly. The proposed LDO was fabricated in a 65-nm CMOS process, and the measured PSRs were less than -36dB at all frequencies from 10kHz to 1GHz, despite changes in a load current (I-L) and a dropout voltage (V-DO).
- ISSN
- 2153-6961
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Related Researcher
- College of Engineering
- Department of Electrical and Computer Engineering
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