Question...and some help please

[Blaze]

I'm not sure (not to savvy with electrical components), but I think I may have messed up and ordered the wrong 5v reg samples.

All the ones I got are 3 pin, and the walkthrus I'm finding call for 4 pin.

Pics of what I got:

Can these be used for a 5v box mod, or do I need to go back to the drawing board and re-order.

Links and walkthrus are greatly appreciated

 

[misterD]

the pins should be Vin Vout and ground. thats all. just make sure you have a decent switch and you'll be good!

 

[Blaze]

So what's the 4th pin for on 4 pin regs?

And which of these 3 would be best to start with? I know, I'm an electo-noob LOL

 

[misterD]

which is the best i dont know. post the part numbers and someone might look up the datasheet and let you know. all i know is that they need to be rated at 3A to handle well the amps pulled by the atty.
the other ones have pins like "control" and "adjust". something like making the switch last longer (so you can use low amperage ones) and make the voltage adjustable when you use some resistors...
but im no expert... just trying to help a lil. but the specs on this one
http://focus.ti.com/lit/ds/symlink/ucc383-3.pdf
seems to be all right to me. but the gurus like to look at the other numbers too.

 

[WillyB]

Just use them with a > 1A switch and you are good to go. Those are high quality and very robust. Make sure you use a pair of 3.7V batteries.

The reg will give you a solid 5V, start to finish, till the batts drop below 5.5V.

http://www.e-cigarette-forum.com/forum/modders-forum/102414-how-make-5v-mod-ti-regulator.html

 

[Shai]

3 pin regulator mod:

http://www.e-cigarette-forum.com/forum/modders-forum/102414-how-make-5v-mod-ti-regulator.html

 

[g33k]

Blaze, I'm new to modding so I might not be on track here, but I believe that 4th pin you are looking for is simply a control pin used on the switch. I've found them at madvapes for pretty cheap, actually I have a couple coming in pretty soon to try my hands at

they can be found here:

LDO 5 volt, 3.0 amp regulator with control pin!

 

[DenniZ]

3 pin regulator mod:

http://www.e-cigarette-forum.com/forum/modders-forum/102414-how-make-5v-mod-ti-regulator.html

LoL I knew that reposting my instructional would help someone.

To answer your question about the fourth pin, it is known as a control pin. Its function is to take a smaller amount of power and run it through a switch. When it senses the circuit is complete, it powers up the regulator. What it does is allow smaller micro switches to be used to power high voltage devices. If you were to put the full power of the batteries to a microswitch the switch would physically degrade and stop functioning relatively fast.
The regulators you bought are great in my opinion, the only downside is that you have to use a more robust (this equates to larger) switch to power the device since it has to transmit the full 5v to the atomizer.

Since you are new to experimenting with electronics, I'd start off with the larger one. Mastering soldering technique is nine-tenths of the battle. just be sure to use heatshrink tubing on the pins to stop them from short circuiting. You will quickly learn how to solder and will be able to trim down pins and your connections. Using less wire and shorter leads is ideal.

Hope that answers your question,
-Dee

 

[Blaze]

So just as long as I've got a good switch, I should be fine right? The switches I got are rated for 3A.

 

[misterD]

follow DenniZ tutorial and post us some pics. better! do a video review!!!

 

[DenniZ]

3A @ 125v is perfect.

 

[Blaze]

3A @ 125v is perfect.

Sweet. Rat Shack FTW