Improved Transient Response Capacitor-less Low Drop-out (LDO) Regulator using Current Mode Transconductance Amplifier and Slew Rate Enhancement Technique | Zendy

Anshu Gupta | Zendy; Lalita Gupta | Zendy; R. K. Baghel | Zendy

Open Access

Improved Transient Response Capacitor-less Low Drop-out (LDO) Regulator using Current Mode Transconductance Amplifier and Slew Rate Enhancement Technique

Author(s) -

Anshu Gupta,

Lalita Gupta,

R. K. Baghel

Publication year - 2016

Publication title -

international journal of computer applications

Language(s) - English

Resource type - Journals

ISSN - 0975-8887

DOI - 10.5120/ijca2016908500

Subject(s) - slew rate , operational transconductance amplifier , transconductance , capacitor , amplifier , transient (computer programming) , transient response , current (fluid) , computer science , materials science , voltage , optoelectronics , operational amplifier , electrical engineering , transistor , engineering , cmos , operating system

paper presents a capacitor-less low drop-out (LDO) regulator with current mode transconductance amplifier & slew-rate enhancement circuit. The proposed current mode transconductance amplifier as error amplifier improves the slew rate & slew- rate enhancement circuit further senses the transient voltage at the output of the LDO to increase the bias current of the error amplifier for a short duration. Hence, transient response of LDO has been further improved using these techniques. The proposed LDO regulator will be designed and simulated in 180nm CMOS technology.

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