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Old 18th April 2014, 04:09 AM   #1
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Default Ultra Low noise voltage regulator IC till 80Volts?

There are couple of TI voltage regulators with noise floors as low as 3 to 14uV but the limit is upto just 35V after that there is another one with 100V but only for positive rail there is nothing for negative rail substitute.

Are there any other vregs with low output noise?
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Old 19th April 2014, 01:50 AM   #2
RNMarsh is offline RNMarsh  United States
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Can the 100v v-reg be turned upside down and run as a neg-v-reg?


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Old 19th April 2014, 02:26 AM   #3
DUG is offline DUG  Canada
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Here is another thread that rythmsandy started yesterday that contain a part number that goes to 36V input and has a negative regulator equivalent that is 16uV of noise. (the positive one mentioned is 4uV):

voltage doubler for TPS7A4700

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Old 22nd April 2014, 03:20 AM   #4
djk is offline djk
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Use split supplies and ground the positive output for the negative regulator.
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Old 22nd April 2014, 03:36 AM   #5
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got the answer from other thread thank you the implementation is pretty similar to what you said..
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