What Texas Instruments regulator should I get

Stoweboarder · Post by **Stoweboarder** » Tue Dec 09, 2008 9:13 am

My friend and I are making a portable and we need a regulator. We know it needs to be a 3.3v switching regulator, but we found that Texas Instruments sends out free samples. We looked through and we found a bunch of models that say 3.3 but we don't know which one to get.

So my question is this:

What exact model # do i get off of the TI website in order to make the N64 work?

Neildo_64 · Post by **Neildo_64** » Tue Dec 09, 2008 10:12 am

If you go to the link thats in the free dc-dc converters thread, there are a few different model numbers, but they are all the same thing. The only difference is the letter at the end of the model # (h,v, etc) which just means its set up to be horizontally mounted or vertically mounted. The only difference is which way the pins are bent when you get it.

Post by **Skyone** » Tue Dec 09, 2008 2:36 pm

Neildo_64 wrote:If you go to the link thats in the free dc-dc converters thread, there are a few different model numbers, but they are all the same thing. The only difference is the letter at the end of the model # (h,v, etc) which just means its set up to be horizontally mounted or vertically mounted. The only difference is which way the pins are bent when you get it.

Sort of; majority of people used to use a sketchy regulator by TI, but now everyone uses an adjustable PTH08000WAH/Z, or PTH08080WAH/Z (smaller).

ShockSlayer · Post by **ShockSlayer** » Tue Dec 09, 2008 8:37 pm

You'll also need a 100uf cap and some resistors.

SS

Stoweboarder · Post by **Stoweboarder** » Tue Dec 09, 2008 8:40 pm

doesnt the regulator have a 100uf cap?

from what i have been researching, all i needed battery wise was the regulator and the battery

but this could be because the battery that I am using is the polaroid PDV 0700, which comes with the stuff that makes it safe

Post by **Skyone** » Tue Dec 09, 2008 9:59 pm

http://forums.benheck.com/viewtopic.php?t=14556

Musturd · Post by **Musturd** » Wed Dec 10, 2008 4:34 pm

What voltage do we need for the 100uf capacitor?
I'm guessing 16, 25, or 50 from my eBay examination. Correct me if I'm wrong..

Post by **Skyone** » Wed Dec 10, 2008 4:57 pm

Anything rated above your input voltage. So if you're using a 7.2v battery as an input, you'll want a 100uF electrolytic capacitor rated for at least 10v.

Musturd · Post by **Musturd** » Wed Dec 10, 2008 5:45 pm

Is there any voltage that could be too high?
Why are 16V ones priced the same as 50V ones?

collinE · Post by **collinE** » Wed Dec 10, 2008 10:06 pm

mine from radio shack was 35v or 36v. I'm too lazy to go check. you also need a resistor around 2k. I just used two 1k resistors.

Stoweboarder · Post by **Stoweboarder** » Wed Dec 10, 2008 10:13 pm

does TI sell these capacitators?

can we get them for free anywhere?

is radio shack our best bet?

Neildo_64 · Post by **Neildo_64** » Wed Dec 10, 2008 10:52 pm

Either radioshack or online somewhere like digikey.

eurddrue · Post by **eurddrue** » Wed Dec 10, 2008 11:13 pm

jesus people these days, fire up your soldering iron, find some solder wick and take some off of an old computer mobo...
jeez, you don't have to buy everything

Stoweboarder · Post by **Stoweboarder** » Wed Dec 10, 2008 11:24 pm

how am i supposed to know that my comp has 100uf caps and 2k resistors?

jleemero · Post by **jleemero** » Wed Dec 10, 2008 11:26 pm

Stoweboarder wrote:how am i supposed to know that my comp has 100uf caps and 2k resistors?

You look for em'.