[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5573/IEIESPC.2015.4.3.152

A Capacitor-less Low Dropout Regulator for Enhanced Power Supply Rejection

Yun, Seong Jin (School of Electrical Engineering, Korea University)
Kim, Jeong Seok (School of Electrical Engineering, Korea University)
Jeong, Taikyeong Ted. (College of Computer Science and Engineering, Seoul Women's University)
Kim, Yong Sin (School of Electrical Engineering, Korea University)

Publication Information

IEIE Transactions on Smart Processing and Computing / v.4, no.3, 2015 , pp. 152-157 More about this Journal

Abstract

Various power supply noise sources in a system integrated circuit degrade the performance of a low dropout (LDO) regulator. In this paper, a capacitor-less low dropout regulator for enhanced power supply rejection is proposed to provide good power supply rejection (PSR) performance. The proposed scheme is implemented by an additional capacitor at a gate node of a pass transistor. Simulation results show that the PSR performance of the proposed LDO regulator depends on the capacitance value at the gate node of the pass transistor, that it can be maximized, and that it outperforms a conventional LDO regulator.

Keywords

Low dropout; Regulator; Power supply rejection; Capacitor-less;

Citations & Related Records

Reference

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