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UBM Tech

Fundamentals of Choosing LDO and Switching Regulators

Posted on: Mar 29, 2013 | Duration: 50 min.
Course | 1466 views
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Although low-power DC/DC ICs often don’t get up-front attention and are viewed as commodities -- with selection often left to the last-minute -- the choice does affect performance, cost, efficiency, run time, PC board layout, and even overall product packaging.

Even for DC loads below 1A, developing the power-tree architecture and choosing the appropriate regulator ICs can be confusing. While a switching regulator seems like the obvious choice due to its inherent efficiency, the less-efficient low-dropout regulator (LDO) is still a good choice in many situations.

This course will explore issues including:
•    supply-tree topology
•    input and output voltage range
•    noise
•    efficiency
•    thermal issues
•    ease of use and additional components needed
•    power distribution and physical board layout,
•    application flexibility
•    vendor sourcing and BOM issues
•    design tools and techniques

As in most engineering situations, there is no single "right" answer, and the engineer must consider and balance the many tradeoffs involved in regulator selection and design-in.

14 comments
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Bill_Jaffa Posted Apr 2, 2013

I hope you'll like this course! Even if you are not doing power-supply subsystem design, I suspect you'll find this worthwhile. And a properly structured, solid supply is one less thing to worry about in your team's design, development, and debug. Do it right and you won't have frustrating headaches as your design cycle moves forward towards product release. Of course, I welcome your comments and your ideas for follow-up courses.--Bill Schweber

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nyh20028319 Posted May 21, 2013

This is a good course for dc power engineer for designing. As as a DC Power Engineer for designing power,I did a project last year, there were a lot of challenge that I faced . Especially for VR solution for low voltage and high current cpu core. How to do a good layout design about providing high current for CPU core and DDR3. Choosing LDOs and Switching Regulators is a challenge for designing power in Intel Sandy Bridge CPU for server platform. By the way, If this course provided by pdf documet will be better.

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Linence4Wies Posted Dec 16, 2013

Your post is very exciting and informative. I am planning to decide on a career move and this has helped me with one aspect. Thanks man! sofa manufacturers

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sw308495 Posted Mar 31, 2014

As in most engineering situations, there is no single "right" answer, and the engineer must consider and balance the many tradeoffs involved in regulator selection and design-in. Samsung fridge not cooling

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sw308495 Posted Apr 6, 2014

As in most engineering situations, there is no single "right" answer, and the engineer must consider and balance the many tradeoffs involved in regulator selection and design-in. Wells Fargo Credit Card Login

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joey899244 Posted Apr 10, 2013

it is still a good choice in many situations. VIPER22A

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JasonEE Posted Apr 10, 2013

Do we have any way to get the Lecture material please? I can't find any button to download the documents please..

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RSuarez65 Posted May 23, 2013

Just click on the RED button that read "VIEW COURSE"

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jantravis Posted Apr 8, 2014

It is a good regulator for sure and many will use it, at least that is my opinion! Thank you for the advice! yachtbooker.de

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Bruce8824 Posted Mar 28, 2014

Thanks for sharing this valuable info about choosing switching regulators. This would help me in designing with point of load-power management. I hope that these tools will help me o design the power architectures more quickly. Keep sharing these sorts of informative articles. Outlook settings !!

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jack11 Posted Apr 5, 2014

I hope you'll like this course!HP0-J62 practice exam test questions & answers Even if you are not doing power-supply subsystem design, I suspect you'll find this worthwhile. HP2-B25 practice exam test questionsAnd a properly structured, solid supply is one less thing to worry about in your team's design, development, and debug. Do it right and you won't have frustrating headaches as your design cycle moves forward towards product release. aruba ACMA-6.1 exam practice questions

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sw308495 Posted Apr 6, 2014

As in most engineering situations, there is no single "right" answer, and the engineer must consider and balance the many tradeoffs involved in regulator selection and design-in. Wells Fargo Credit Card Login

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ken faye Posted Apr 14, 2014

It looks like this is a good artilce,find the best way to meet your need click here

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