Design of a Capacitor-less Low Dropout
Voltage Regulator

Sheenam Ahmed; Isha Baokar; R Sakthivel

doi:https://doi.org/10.14445/22315381/IJETT-V45P293

Research Article | Open Access | Download PDF

Volume 45 | Number 4 | Year 2017 | Article Id. IJETT-V45P293 | DOI : https://doi.org/10.14445/22315381/IJETT-V45P293

Design of a Capacitor-less Low Dropout Voltage Regulator

Sheenam Ahmed, Isha Baokar, R Sakthivel

Citation :

Sheenam Ahmed, Isha Baokar, R Sakthivel, "Design of a Capacitor-less Low Dropout Voltage Regulator," International Journal of Engineering Trends and Technology (IJETT), vol. 45, no. 4, pp. 493-497, 2017. Crossref, https://doi.org/10.14445/22315381/IJETT-V45P293

Abstract

With the growing need of battery powered mobile devices, power management has been of great concern in the electronics industry, an essential component being a low drop-out (LDO) voltage regulator. LDO voltage regulators improve battery`s power efficiency and life. The designed LDO voltage regulator is designed with self-compensated error amplifier, along with PMOS current sourcing for quick charging and discharging at the output node. It provides a stable regulated output voltage in the range of 40- 45mV with a dropout voltage of 200mV. Simulated results demonstrate that the proposed LDO voltage regulator has power consumption of 10.78uW thereby, reducing the power consumption by 30.18% which makes it more economic for power management architectures.

Keywords

LDO;drop-out; PMOS current sourcing; Kickback effect.

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