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-5v Voltage Regulator Answered

I want to make a -5v Voltage Regulator...

Does anyone know if I replace the 7805 regulator with a 7905 would that be enough, or would the capacitors have to be different values?

5v Voltage Regulator Schematics

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Patrick Pending (author)2008-01-07

At the risk of stating the obvious - don't forget that it is only -5V with respect to something else e.g., a common ground or common 0V rail. Cheers, Pat. Pending

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mrshow555 (author)2008-01-07

just the polarities right? not the values? so i can use the same caps.

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chooseausername (author)2008-01-07

Polarities of chemical capacitors will have to be inverted.

Here is a example from National Semiconductor :
http://www.national.com/mpf/LM/LM7905.html

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