An Output-Capacitorless Linear Regulator for Integrated Portable Power Solutions

被引：0

作者：

Day, Jacob ^{[1
]}

Lie, Donald Y. C. ^{[1
]}

机构：

[1] Texas Tech Univ, Dept Elect & Comp Engn, Lubbock, TX 79409 USA

来源：

2011 IEEE 54TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) | 2011年

关键词：

Capacitor-Iess; low-dropout regulator (LDO); transient response;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes a linear regulator that offers a very fast transient response of less than 150ns for a load step with a 100ns rise time. The voltage regulator is designed so that no output capacitor is needed to save die area and system cost. Total on-chip capacitance is a mere 3pF for this design. It also operates at very high power efficiency with only a 39 mu A quiescent current. This design can be ideal for portable applications powered by a Li-ion battery with a small to moderate digital core, such as a power management IC for cellular phones. The process used in this work is a mature 0.35 mu m BiCMOS process commonly employed for power management devices by Texas Instruments.

引用

页数：4

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