Madvapes 5v regulators rock

[Ez Duzit]

Been wanting to put together a 5volt 3x AAA box using a micro-switch, but didn't want the hassle of trying to stuff a mosfet, along with the 5v regulator into that tiny space. I've tried about 7 or 8 different styles of switches, but it's a royal pain in the butt trying to find a small switch that actually looks good when mounted, and can handle the current from a 5 volt setup. They're either too tall and stick out about 10mm or more, or they're too wide, and can't fit in the narrow battery slot that a triple A size box has. So I always wind up doing major dremel work to a switch I like, but is actually too big, just to make it fit into a space that it wasn't meant to fit into in the first place. What a pain in the a$$!

But I finally got a few Madvapes 5v regulators with a control pin, and BAM. No more oversize switch problems. Put together a nice little 5v box using the tiny tactile switch he carries, and this thing is a joy to use. The schematic for the circuit is posted in the description of the regulator, and works perfectly. Can use any teeny tiny switch I want now, since I don't have to worry about current frying the switch. And I get about 5 hours, of 5 volt vaping using two 10440 batteries.

[stompasaurus]

Can you post some pics? I was going to do the same with the 3xAA box (because I already have 14500s on hand) but he's out of them, and I was thinking 3xAAA would be good for the smaller size, but wasn't sure how everything fit in there. I'm not the best at this so the 3xAA would have given me extra room but if everything is as small as I think it is it should fit just fine.

[Ez Duzit]

I'll take some pics and post em tonight.

[Ez Duzit]

Here's those pictures.
I have to say, I'm lovin this switch. One really nice thing I noticed about this regulator, is it runs very cool. I did a 7 second burn (with atty attached), and it was barely warm. Then I did the same thing with a TI 383 regulator, and at 7 seconds, it got real hot. I had to let go right after that because it was so hot, but it does cool down very quick once you let up on the button.

[hoogie76]

Very nice...

[stompasaurus]

Thanks!

Interesting that you put the batteries on either end, I hadn't considered that. I figured I would put the two next to each other and use one of the ends for all of the components.

[Ez Duzit]

Stomp - If you look at the top of the box where the atty goes, you'll see 2 slots that the back cover slide into. Because of the placement of those slots, it was more practical to put the atty and wiring in the center position.

[stompasaurus]

Of course, didn't even think of that.

Stupid question, but I can't see how the two batteries are wired together, little help?

I'm sure I could figure it out once it's in front of me, but I just can't make it out from the pictures.

Thanks

[Ez Duzit]

Of course, didn't even think of that.

Stupid question, but I can't see how the two batteries are wired together, little help?

I'm sure I could figure it out once it's in front of me, but I just can't make it out from the pictures.

Thanks

You're right, you can't really see it.
There's a short length of wire that runs under the connector, and is soldered to the back of each battery contact. If you enlarge the thumbnail, and then click it 2 more times to enlarge it all the way, (that's just the way imageshack does it). Anyway, you can barely see a little tiny bit of the red insulation from the jumper wire. Yellow arrow points to it.

[Led Hendriani]

Does the use of a 5V regulator disallow more than 5V to get through to target, but still use the 7.4V, or cap the batteries discharge at only 5V, thus making the batteries last longer?

Thanks!