Design of an output-capacitorless low-dropout regulator for power management applications
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/101341
Tipus de documentText en actes de congrés
Data publicació2016
EditorUniversidad Miguel Hernández de Elche
Condicions d'accésAccés obert
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continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
This article aims to present the design of a 4.5-V, 450-mA low drop-out (LDO) voltage linear regulator based on a twostage cascoded operational transconductance amplifier (OTA) as error amplifier. The aforementioned two-stage OTA is designed with cascoded current mirroring technique to boost up the output impedance. The proposed OTA has a DC gain of 101 dB under no load condition. The designed reference voltage included in the LDO regulator is provided by a band gap reference with the temperature coefficient (T¿) of 0.025 mV/ºC. The proposed LDO regulator has a maximum drop-out voltage of 0.5 V @ 450 mA of load current, and has the worst case power supply rejection ratio (PSRR) of [54.5 dB, 34.3 dB] @ [100 Hz, 10 kHz] in full load condition. All the proposed circuits are designed using a 0.35 µm CMOS technology. The design is checked in order to corroborate its performance for wide range of input voltage, founding that the circuit design works fine meeting all the initial specification requirements.
CitacióMartinez, H. Design of an output-capacitorless low-dropout regulator for power management applications. A: Seminario Anual de Automática, Electrónica Industrial e Instrumentación. "Libro de Actas del SAAEII'16 - Seminario Anual de Automática, Electrónica Industrial e Instrumentación 2016". Elche: Universidad Miguel Hernández de Elche, 2016, p. 1-6.
Versió de l'editorhttp://www.saaei.org/edicion16/
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TCC21.pdf | Final Version of the Paper | 300,4Kb | Visualitza/Obre |