2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

Sep 5 - Oct 31, 2023Nagoya Congress Center
International Conference on Solid State Devices and Materials
2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

Sep 5 - Oct 31, 2023Nagoya Congress Center

[J-3-04]Low Quiescent Current LDO with FVF-Based PSRR Enhanced Circuit for EEG Recording Wearable Devices

Kenji Mii1, Daisuke Kanemoto1, Tetsuya Hirose1(1. Osaka Univ. (Japan))
https://doi.org/10.7567/SSDM.2023.J-3-04
This paper proposes a low quiescent current low-dropout regulator (LDO) with a flipped voltage follower (FVF)-based power supply rejection ratio (PSRR)-enhanced circuit for EEG recording devices. The proposed LDO was designed using a 0.18 μm CMOS process. The designed LDO achieved a PSRR that was improved by 18 dB at 15 kHz, compared with the general configuration obtained using measurement results. Quiescent current consumed by the LDO at no-load operation was 648 nA.