000129657 001__ 129657
000129657 005__ 20241125101134.0
000129657 0247_ $$2doi$$a10.3390/electronics12224638
000129657 0248_ $$2sideral$$a135861
000129657 037__ $$aART-2023-135861
000129657 041__ $$aeng
000129657 100__ $$aSerrano-Reyes, Andrés
000129657 245__ $$aThree-Stage CMOS LDO with Optimized Power and Dynamic Performance for Portable Devices
000129657 260__ $$c2023
000129657 5060_ $$aAccess copy available to the general public$$fUnrestricted
000129657 5203_ $$aLow dropout (LDO) regulators are crucial components in power management systems for portable, i.e., battery-powered, devices. However, the design of LDO regulators presents a challenging trade-off between dynamic performance, power consumption, and area efficiency. This paper proposes a novel LDO regulator design that addresses these challenges by employing the reverse nested Miller compensation (RNMC) with current buffers embedded within the own class AB high gain error amplifier (EA) topology, and a time response enhancement circuit (TREC). High-gain (>120 dB) class AB EA renders good regulation performance with enhanced dynamic performance. The proposed compensation scheme improves the gain bandwidth product (GBW) and stability of the regulator, while the TREC reduces overshoot and undershoot during load transients without additional steady-state power consumption. Post-layout simulations confirm the robustness of the proposed 180 nm CMOS design across a wide range of operating conditions, achieving a regulated output voltage of 1.8 V with 100 mV dropout, good load and line regulating performance, and excellent load transient response with reduced undershoot and overshoot at minimum power (Iq = 13.8 μA) and area (314 μm × 150 μm) consumption. The proposed LDO regulator thus offers a compelling compromise between power consumption, area efficiency, and dynamic performance, making it highly suitable for portable applications.
000129657 536__ $$9info:eu-repo/grantAgreement/ES/MCIU/PID2019-106570RB-I00-AEI-10.13039-501100011033
000129657 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000129657 590__ $$a2.6$$b2023
000129657 592__ $$a0.644$$b2023
000129657 591__ $$aCOMPUTER SCIENCE, INFORMATION SYSTEMS$$b115 / 250 = 0.46$$c2023$$dQ2$$eT2
000129657 591__ $$aPHYSICS, APPLIED$$b81 / 179 = 0.453$$c2023$$dQ2$$eT2
000129657 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b157 / 353 = 0.445$$c2023$$dQ2$$eT2
000129657 593__ $$aElectrical and Electronic Engineering$$c2023$$dQ2
000129657 593__ $$aComputer Networks and Communications$$c2023$$dQ2
000129657 593__ $$aSignal Processing$$c2023$$dQ2
000129657 593__ $$aHardware and Architecture$$c2023$$dQ2
000129657 593__ $$aControl and Systems Engineering$$c2023$$dQ2
000129657 594__ $$a5.3$$b2023
000129657 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000129657 700__ $$aSanz-Pascual, María Teresa
000129657 700__ $$0(orcid)0000-0003-2361-1077$$aCalvo-López, Belén$$uUniversidad de Zaragoza
000129657 7102_ $$15008$$2250$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Electrónica
000129657 773__ $$g12, 22 (2023), 4638 [13 pp.]$$pElectronics (Basel)$$tElectronics$$x2079-9292
000129657 8564_ $$s2234443$$uhttps://zaguan.unizar.es/record/129657/files/texto_completo.pdf$$yVersión publicada
000129657 8564_ $$s2723994$$uhttps://zaguan.unizar.es/record/129657/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000129657 909CO $$ooai:zaguan.unizar.es:129657$$particulos$$pdriver
000129657 951__ $$a2024-11-22-11:59:58
000129657 980__ $$aARTICLE