A low voltage CMOS low drop-out voltage regulator

Salma Ali Bakr; Tanvir Ahmad Abbasi; Mohammas Suhaib Abbasi; Mohamed Samir Aldessouky; Mohammad Usaid Abbasi

doi:10.1117/12.819796

28 May 2009 A low voltage CMOS low drop-out voltage regulator

Salma Ali Bakr, Tanvir Ahmad Abbasi, Mohammas Suhaib Abbasi, Mohamed Samir Aldessouky, Mohammad Usaid Abbasi

Proceedings Volume 7363, VLSI Circuits and Systems IV; 73630S (2009) https://doi.org/10.1117/12.819796
Event: SPIE Europe Microtechnologies for the New Millennium, 2009, Dresden, Germany

Abstract

A low voltage implementation of a CMOS Low Drop-Out voltage regulator (LDO) is presented. The requirement of low voltage devices is crucial for portable devices that require extensive computations in a low power environment. The LDO is implemented in 90nm generic CMOS technology. It generates a fixed 0.8V from a 2.5V supply which on discharging goes to 1V. The buffer stage used is unity gain configured unbuffered OpAmp with rail-to-rail swing input stage. The simulation result shows that the implemented circuit provides load regulation of 0.004%/mA and line regulation of -11.09mV/V. The LDO provides full load transient response with a settling time of 5.2μs. Further, the dropout voltage is 200mV and the quiescent current through the pass transistor (Iload=0) is 20μA. The total power consumption of this LDO (excluding bandgap reference) is only 80μW.

Citation Download Citation

Salma Ali Bakr, Tanvir Ahmad Abbasi, Mohammas Suhaib Abbasi, Mohamed Samir Aldessouky, and Mohammad Usaid Abbasi "A low voltage CMOS low drop-out voltage regulator", Proc. SPIE 7363, VLSI Circuits and Systems IV, 73630S (28 May 2009); https://doi.org/10.1117/12.819796

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available