A Low Quiescent Current Fast Transient LDO Regulator With Segmented Pass Transistors

Also Available Domains Nano Technology|Transistor Logic|Low Power VLSI

Project Code :TVMABE335

Objective

The main objective of this work is to design and implement a low dropout (LDO) voltage regulator that achieves low quiescent current while providing fast transient response during rapid load variations. The regulator aims to balance power efficiency and stability by using segmented pass transistors to dynamically adjust the drive strength according to the load current demand. This approach minimizes power loss under light loads while maintaining high performance and quick settling under heavy load conditions.

Abstract

This project presents a low quiescent current, fast-transient Low Dropout (LDO) regulator designed using segmented pass transistors to achieve high power efficiency and rapid load response. The segmented pass-device architecture dynamically adjusts the effective drive strength based on load variations, allowing the regulator to maintain stability and minimize output voltage undershoot and overshoot during sudden load transients. By reducing unnecessary bias currents during light-load conditions, the proposed LDO achieves ultra-low quiescent current while still providing strong transient performance when required. This approach makes the regulator highly suitable for battery-powered and energy-efficient portable systems where both low static power consumption and fast dynamic response are essential.

NOTE: Without the concern of our team, please don't submit to the college. This Abstract varies based on student requirements.