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'Negative voltage regulator needed'
2007\05\22@112727 by Joe McCauley

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I'm looking for a single chip voltage regulator capable of supplying -60V
from a -75V supply. The minimum output current can be anything above 150mA.
I suppose I'm looking for something like the TL782 voltage regulator which
regulates up to about +125 V. I would prefer not to build from discretes,
but might have to go that way.

Any ideas?

Joe

2007\05\22@114917 by Vasile Surducan

face picon face
On 5/22/07, Joe McCauley <spam_OUTjoe.mccauleyTakeThisOuTspamtcd.ie> wrote:
> I'm looking for a single chip voltage regulator capable of supplying -60V
> from a -75V supply. The minimum output current can be anything above 150mA.
> I suppose I'm looking for something like the TL782 voltage regulator which
> regulates up to about +125 V. I would prefer not to build from discretes,
> but might have to go that way.
>
> Any ideas?

TL783 as negative regulator ? (separated supply from the positive regulator).

2007\05\22@123330 by D. Esterline

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> I'm looking for a single chip voltage regulator capable of supplying -60V
> from a -75V supply. The minimum output current can be anything above
> 150mA.
> I suppose I'm looking for something like the TL782 voltage regulator which
> regulates up to about +125 V. I would prefer not to build from discretes,
> but might have to go that way.
>
> Any ideas?
>
> Joe

Take a look at the LM337 datasheet. These parts are rated based on the
difference between the input and output voltages, which in your case is only
15 volts, so this part should work fine.

-Denny

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