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Book Excerpt: Analog IC Design with Low-Dropout Regulators (part 4 of 5)

Authored on: Apr 8, 2009 by Professor Gabriel Alfonso Rincón-Mora, Georgia Institute of Technology

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The low-dropout regulator (LDO) is a vital and ubiquitous building-block and tool in the power-supply designer kit. Despite the fact that it is often derided as "inefficient" compared to switching regulators, it remains the best choice for many designs, and is one of the most commonly used power components, due to its small size, low noise, ease of use, low cost, and other factors. Many systems, in fact, use a combination of switching regulators and LDOs to get the optimum power-supply mix of needed supply rails and performance features.

This book, by Professor Gabriel Alfonso Rincón-Mora of the Georgia Institute of Technology, shows in great detail and with careful explanations, how to design, simulate, build, and test LDOs, with an emphasis on LDOs which will be embedded in larger ICs (as opposed to standalone LDOs). It covers the entire product development cycle, from defining objectives and selecting components to layout, assembly, fin-tuning performance, and tests.

We are pleased to present the entire Chapter 1: System Considerations (a total of 44 pages) in serial form, as follows:

  • Section 1.1: Regulators in Power Management; and Section 1.2: Linear versus Switching Regulators
  • Section 1.3: Market Demand; and Section 1.4: Batteries
  • Section 1.5: Circuit Operation
  • Section 1.6: Specifications
  • Section 1.7: Simulations; and Section 1.8: Summary

The author is a recognized leader in the LDO-design field. He previously worked for Texas Instruments, is the author of five books and over 100 scientific papers, and holds 26 patents and is responsible for a comparable number of power-management IC designs.

For more information about the book, including Table of Contents, click here

"Analog IC Design with Low-Dropout Regulators," published by McGraw-Hill Co, 2009, ISBN 9780071608930, hardcover, 400 pages, Used with permission: all rights reserved.



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