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Old 16th December 2008, 07:04 PM   #1
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Default adjustable voltage regs compatability

Hello,

I have a circuit with LM337T and LM317T, they output -24 volts and +24 volts in the circuit.

Now, I am considering upgrading these regs with the LT337A and LT317A.

If I drop these into the circuit, do the adjusting resistors stay the same? IE does the new regs still output -24V and +24V without any changes?

As another option, how would the LT3080 integrate into my circuit? Is there a negative voltage equivilant to the LT3080?

Thanks
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Old 16th December 2008, 07:18 PM   #2
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They should be equivalent same and replaceable.

Each devices, even if replacing one LM337T with LM337T,
can have a very slightly diff reference voltage.
1.245 vs. 1.239, for example
So give or take a few 0.1%, which in most ciruits fed will have no practical issue.
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