3.3V on a 3V device?

[Franc Zabkar]

On Wed, 10 Mar 2010 21:38:23 -0800, David Nebenzahl
<nobody@but.us.chickens> put finger to keyboard and composed:

On 3/10/2010 7:45 PM Franc Zabkar spake thus:

On Mon, 08 Mar 2010 15:20:07 -0800, David Nebenzahl
nobody@but.us.chickens> put finger to keyboard and composed:

I'm wondering if running a 3-volt device (cheap digital camera) on 3.3
volts will hurt it. Yeah, I coulda gotten a 3-volt wall wart to run it,
but it was expen$ive. The 3.3V regulator I got was a little more than a
buck. Haven't tried it yet.

Unless the 3.3V regulator is a fixed type, it may be possible to bring
it down to 3.0V by changing a feedback resistor. Can we see a photo of
the PCB?

It's just a TO-220 regulator, for chrissakes. An NTE something something
... don't have it here at the moment, but it's just a fixed 3.3V
regulator. So no, not possible to rejigger it w/a resistor.

I'm just going to use it as-is. I don't think 10% overvoltage will hurt
the cam.

I thought that a standard 3-terminal regulator with a 1A current limit
may not be appropriate for the task. That's why I assumed you had
something more sophisticated. After all, you did get the camera for
$1.

- Franc Zabkar
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