Linear Regulators: Theory of Operation and Compensation Introduction

这篇文章讲述了Linear Regulators的原理，NPN regulators，low-dropout (LDO) regulators 和 quasi-LDO的区别。
还有大家非常关心的闭环的稳定性，ESR和稳定性的关系/输出电容的选择，P-FET LDO的优点。
我想不算太了解LDO的人看了这篇文章，会有很大的收获。
Linear Regulators: Theory of Operation and Compensation
National Semiconductor
Linear Regulators: Theory Application Note 1148
Chester Simpson
of Operation and May 2000

Compensation
Introduction
The explosive proliferation of battery powered equipment in
the past decade has created unique requirements for a
voltage regulator that cannot be met by the industry stan-
dards like the LM340 or the LM317. These regulators use an
NPN Dar