Voltage regulator with alternate voltage source...

drlegendre . drlegendre at gmail.com
Sun Apr 10 21:54:02 CDT 2016

I've often wondered why the back-current diode isn't incorporated into the
die of all common linear regs. Is it that costly, or simply impractical due
to die space or other considerations?

In fact, I believe that some of the more modern regs do employ it.. just
not the old-standby like LM317, 7805/7905, and so on.

On Sun, Apr 10, 2016 at 8:05 PM, dwight <dkelvey at hotmail.com> wrote:

> To protect a regulator against a back volt,
> you can put a diode, in reversed polarity.
> How many pixels will the camera have?
> Dwight

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