Tiny Variable Switching Regulator!

Corscaria · Post by **Corscaria** » Fri Jun 09, 2006 10:34 pm

Anyone seen this? This variable output switching regulator is the size of the 780x family of voltage regulators, and pin compatible! This sould help make those portables a bit more efficient!
Switching Regulator

timmeh87 · Post by **timmeh87** » Sat Jun 10, 2006 9:50 am

well its not really anything new (weve been using a similar product from TI in and around the N64 forums for a while), but i really like how it

a) comes with the a trim pot built in
b) is pin compatable with the 78xx series, with no extra wiring

the only problem is the price ($15 + shipping/credit card required vs. free)

good find though. maybe this could get added to the sticky in the n64 forum, at least (everyone seems to want a dc-dc for their 3.3v line)

sniper_spike · Post by **sniper_spike** » Sat Jun 10, 2006 9:54 am

Nah, it's only 1A, too bad: the 3.3 line needs atleast 1.5A.

timmeh87 · Post by **timmeh87** » Sat Jun 10, 2006 9:55 am

damn i didnt even think of that. i guss you could use two. lol.

edit: the output current is actually determined by the RMS method. does the n64 take 1.5amps steady, or is that a peak value? because a sine wave with an 1.4A peak is 1A RMS

Post by **Gamelver** » Sat Jun 10, 2006 10:04 am

It depends on the game. For games requiring more power, I'm pretty sure it's a constant 1.5A....

NES_fanatic · Post by **NES_fanatic** » Sat Jun 10, 2006 10:50 am

I like the lables.

Coincidentally, "vin" and "vout" are the directions in wich a figure moves in the fourth dimension.

Up/down, left/right, in/out, vin/vout.

Post by **Gamelver** » Sat Jun 10, 2006 11:52 am

They're also the standard labels for Voltage Input and Voltage Output

....

joevennix · Post by **joevennix** » Sat Jun 10, 2006 1:48 pm

Can't you make one of those easily? I thought if you changed an LM7808, etc.'s ground reference, you could have variable output.

NES_fanatic · Post by **NES_fanatic** » Sat Jun 10, 2006 2:49 pm

joevennix wrote:Can't you make one of those easily? I thought if you changed an LM7808, etc.'s ground reference, you could have variable output.

But that would still be a linear regulator. I.E: Not as efficient as a switching regulator.

daguuy · Post by **daguuy** » Sat Jun 10, 2006 6:34 pm

as far as i know, you can only raise the voltage of fixed regulators.

vb_master · Post by **vb_master** » Sat Jun 10, 2006 6:43 pm

NES_fanatic wrote:I like the lables.

Coincidentally, "vin" and "vout" are the directions in wich a figure moves in the fourth dimension.

Up/down, left/right, in/out, vin/vout.

But there is no 4th dimension (well, that we know of).