Chyan, Tan Yee and Ramiah, Harikrishnan and Hatta, Sharifah Fatmadiana Wan Muhamad and Lai, Nai Shyan and Lim, Chee-Cheow and Chen, Yong and Mak, Pui-In and Martins, Rui Paulo (2022) Evaluation and perspective of analog low-dropout voltage regulators: A review. IEEE Access, 10. pp. 114469-114489. ISSN 2169-3536, DOI https://doi.org/10.1109/ACCESS.2022.3217919.
Full text not available from this repository.Abstract
Low-dropout regulators (LDOs) are widely adopted in power management integrated circuits (PMICs) and serve as a bridge between the switching regulators and individual on-chip modules to provide a smooth, regulated output voltage. Compared to digital LDOs (DLDOs), analog LDOs (ALDOs) lead in the advantage of low output ripple and large power supply rejection (PSR). However, the preference of achieving high performance in terms of load transient, high PSR, good load and line regulation, while maintaining a low quiescent current and low dropout voltage for high efficiency, remains the key challenge in ALDO design. For operation with a low quiescent current, the bandwidth is reduced due to low transconductance, resulting in the limited gate driving capabilities in terms of charging and discharging the large gate capacitance of the pass or output transistor. In addition, the preference for system-on-chip design in the absence of large off-chip capacitors arises stability issues. In this paper, recent reported state-of-the-art architectures for ALDOs are revisited and reviewed. The performance of these ALDOs is compared and their applications are investigated.
| Item Type: | Article |
|---|---|
| Funders: | Research University (RU) [GPF056B-2020] [MG012-2022], Science and Technology Development Fund, Macau, SAR [FDCT 0036/2020/AGJ], SKL-AMSV |
| Uncontrolled Keywords: | Internet of Things; Capacitors; Voltage control; Batteries; Transient analysis; Power system management; Phasor measurement units; Power supplies; Integrated circuits; Linear low-dropout regulators (LDOs); power management integrated circuits (PMICs); analog LDOs (ALDO); capacitor-less output; adaptive biasing; bulk modulation; power supply rejection (PSR); flipped voltage follower (FVF); charge pump |
| Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 29 Aug 2023 06:36 |
| Last Modified: | 29 Aug 2023 06:36 |
| URI: | http://eprints.um.edu.my/id/eprint/41006 |
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