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Old 9th January 2003, 06:49 PM   #1
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Default Regulator question

Say I have an active crossover board with 9 dual op-amps. How much output current capability should I look for in a voltage regulator assuming I'm supplying +/- 12V rails to the opamps? Thanks,


Mark
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Old 9th January 2003, 07:06 PM   #2
halojoy is offline halojoy  Sweden
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Default Re: Regulator question

Quote:
Originally posted by Mark Hayenga
Say I have an active crossover board with 9 dual op-amps. How much output current capability should I look for in a voltage regulator assuming I'm supplying +/- 12V rails to the opamps? Thanks,
Mark
You have not told us what OP amps?
-----------------
20 mA per OP amp, would be enough for most any Devices.
9x20= 0.18A
Say you have Regulator that can put out 0.5 Ampere.
That would be REALLY enough!

It is good to have a margin, if you want to put some more into your circuit, later.

LM317/LM337 can put out 1.5A.
Can be a good and low cost alternative for you.

/halo - a great LM317 admirerer
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Old 9th January 2003, 08:11 PM   #3
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It's a general purpose active XO board, so worst-case draw from any opamp is what I should engineer for. Sounds like .5amp will do. Thanks!


Mark
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