CFP last date
20 March 2024
Reseach Article

Low Power Dropout Regulators with Efficiently Controlled Transient Response

by Varun Kumar Singhal, Tarun Kumar Gupta
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 142 - Number 4
Year of Publication: 2016
Authors: Varun Kumar Singhal, Tarun Kumar Gupta
10.5120/ijca2016909758

Varun Kumar Singhal, Tarun Kumar Gupta . Low Power Dropout Regulators with Efficiently Controlled Transient Response. International Journal of Computer Applications. 142, 4 ( May 2016), 38-41. DOI=10.5120/ijca2016909758

@article{ 10.5120/ijca2016909758,
author = { Varun Kumar Singhal, Tarun Kumar Gupta },
title = { Low Power Dropout Regulators with Efficiently Controlled Transient Response },
journal = { International Journal of Computer Applications },
issue_date = { May 2016 },
volume = { 142 },
number = { 4 },
month = { May },
year = { 2016 },
issn = { 0975-8887 },
pages = { 38-41 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume142/number4/24888-2016909758/ },
doi = { 10.5120/ijca2016909758 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T23:44:06.218131+05:30
%A Varun Kumar Singhal
%A Tarun Kumar Gupta
%T Low Power Dropout Regulators with Efficiently Controlled Transient Response
%J International Journal of Computer Applications
%@ 0975-8887
%V 142
%N 4
%P 38-41
%D 2016
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The Low-Dropout voltage regulators are significant part of VLSI design integrated chips and are used to provide steady supply voltage to noise sensitive analog/RF circuit blocks. It belongs to class of linear regulators designed to minimize the saturation of output pass transistor and its drive requirements. A capacitor-less low-dropout regulator with improved performance push–pull power transistor is described in the paper. The proposed LDO is stable over a wide range of load current and implemented in 65-nm CMOS process technology. The simulation illustrates that the regulator is able to convert VIN of 0.65V- 1.5V to output voltage of 0.5V. This LDO achieves power supply rejection of >40dB at 1 kHz operating frequency. It consumes a quiescent current less than 10 uA. It is capable of delivering a maximum load current of 70 mA with a dropout voltage of less than 220 mV.

References
  1. Y.-H. Lee, Y.-Y. Yang, K.-H. Chen, Y.-H. Lin, S.-J. Wang, K.-L. Zheng, P.-F. Chen, C.-Y. Hsieh, Y.-Z. Ke, Y.-K. Chen, and C.-C. Huang, “A DVS embedded system power management for high efficiency integrated SoC in UWB system,” IEEE J. Solid-State Circuits, vol. 45, no. 11, pp. 2227–2238, Nov. 2010.
  2. M. El-Nozahi, A. Amer, J. Torres, K. Entesari, and E. Sanchez-Sinencio, “High PSR low drop-out regulator with feed-forward ripple cancellation technique,” IEEE J. Solid-State Circuits, vol. 45, no. 3, pp. 565–577, Mar. 2010.
  3. G. A. Rincon-Mora and P. E. Allen, “A low-voltage, low quiescent current, low drop-out regulator,” IEEE J. Solid-State Circuits, vol. 33, no. 1, pp. 36–44, Jan. 1998.
  4. . Guo and K. N. Leung, “A 6-μW chip-area-efficient outputcapacitorless LDO in 90-nm CMOS technology,” IEEE J. Solid-State Circuits, vol. 45, no. 9, pp. 1896–1905, Sep. 2010.
  5. T. Y. Man, P. K. T. Mok, and M. Chan, “A high slew-rate push-pull output amplifier for low-quiescent current low-dropout regulators with transient-response improvement,” IEEE Trans. Circuits Syst. II, Exp. Briefs, vol. 54, no. 9, pp. 755–759, Sep. 2007.
  6. C.-M. Chen, T.-W. Hung, and C.-C. Hung, “Fast transient low-dropout voltage regulator with hybrid dynamic biasing technique for SoC application,” IEEE Trans. Very Large Scale Integr. (VLSI) Syst., vol. 21, no. 9, pp. 1742–1747, Sep. 2013.
  7. P. Hazucha, T. Karnik, B. A. Bloechel, C. Parsons, D. Finan, and S. Borkar, “Area-efficient linear regulator with ultra-fast load regulation”, IEEE J. Solid-State Circuits, vol. 40, no. 4, pp. 933–940, Apr. 2005.
  8. P. Y. Or and K. N. Leung, “An output-capacitor less low-dropout regulator with direct voltage-spike detection,” IEEE J. Solid-State Circuits, vol. 45, no. 2, pp. 458–466, Feb. 2010.
  9. C. M. Chen and C. C. Hung, “A fast self-reacting capacitor-less low-dropout regulator,” in Proc. ESSCIRC, Sep. 2011, pp. 375–378.
Index Terms

Computer Science
Information Sciences

Keywords

Low dropout regulators low quiescent current enhanced capacitor-less.