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Why a Little Ringing in Step Load Isnít Such a Little Problem
8/14/2013

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Figure 1: Example of a stable range of ESR values.  (Texas Instruments refers to this as 'The tunnel of death' in their application note SLVA072 -- Technical Review of Low Dropout Voltage Regulator Operation and Performance -- Application Report.)
Figure 1: Example of a stable range of ESR values. (Texas Instruments refers to this as "The tunnel of death" in their application note SLVA072 -- Technical Review of Low Dropout Voltage Regulator Operation and Performance -- Application Report.)

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Steve.Picotest
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Re: Um...
Steve.Picotest   8/15/2013 4:16:21 PM
NO RATINGS
The simple version is that while a little ringing looks like one frequency it is really in fact many frequencies.  These all contribute to circuit noise and so a little ringing equals a lot of noise.

 

Thanks for reading and for taking the time to comment

 

Steve.Picotest
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Does this topic "resonate" with you (sorry, but couldn't resist)
Steve.Picotest   8/14/2013 5:25:14 PM
NO RATINGS
Please let me know if you have seen stability problems that degraded circuit performance or feel free ask any questions you might have about how to solve such problems.  I do like opportunities to talk with all of you

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