Title : ( Low-dropout voltage reference: an approach to low-temperature-sensitivity architectures with high drive capability )
Authors: , Reza Lotfi , Khlil Mafinezhad ,Abstract
A modified circuit topology for voltage references capable of providing very high load current with low-temperature-sensitivity output voltage is presented. Employing a proportional-to-absolute-temperature current source and a complementary-to-absolute-temperature voltage source in a novel closed-loop configuration, the output voltage can be tuned over a wide range of voltages lower or higher than the silicon bandgap voltage. These features make the configuration a promising competitor for low-dropout regulators. A possible implementation of the proposed topology in 0.18 µm technology shows that the simulated 0.9 and 1.3 V voltage references have fast and stable operation for load currents up to 100 mA. The temperature coefficient for both design cases is smaller than 37 ppm/°C.
Keywords
, Analog integrated circuit, Voltage regulator, low-dropout regulator, bandgap reference@article{paperid:1012694,
author = {, and Lotfi, Reza and Mafinezhad, Khlil},
title = {Low-dropout voltage reference: an approach to low-temperature-sensitivity architectures with high drive capability},
journal = {Electronics Letters},
year = {2009},
volume = {45},
number = {24},
month = {November},
issn = {0013-5194},
pages = {1200--1201},
numpages = {1},
keywords = {Analog integrated circuit; Voltage regulator; low-dropout regulator; bandgap reference},
}
%0 Journal Article
%T Low-dropout voltage reference: an approach to low-temperature-sensitivity architectures with high drive capability
%A ,
%A Lotfi, Reza
%A Mafinezhad, Khlil
%J Electronics Letters
%@ 0013-5194
%D 2009