DC Step-up IC

Tenson · 15th March 2007, 03:31 AM

Hi,

I was wondering if anyone knew of any really simple to use IC's that could step-up a 3.3v to about 8v and handle around 1a of current or more?

The best I can find is the LM2623AMM, but it needs a fair few external components. I would like something as simple as possible to do the job if there is such a thing?!

Suggestions appreciated. Even if you just tell me such a thing doesn't exist

I want it because I have an unregulated 3.3v line that I want to regulate. So I need to step it up and then regulate it back to 3.3v lol. No other way I can see of doing it, unless there is some wonderful regulator that will manage to regulate 3.3v and not drop more than o.3v?

Thanks

theAnonymous1 · 15th March 2007, 01:26 PM

Why would you want to step up the voltage with a DC-DC just to regulate it back down with a linear reg? Just use a regulated DC-DC with 3.3v output.

http://datasheets.maxim-ic.com/en/ds...0-MAX1760H.pdf

Tenson · 15th March 2007, 03:30 PM

Since it is designed to 'step-up', will it not dislike having the same voltage on the input as I ask it to output?

Thanks for the link though. I guess it will work just fine

15th March 2007, 03:31 AM	#1
Tenson diyAudio Member Join Date: Feb 2006 Location: Kent	DC Step-up IC Hi, I was wondering if anyone knew of any really simple to use IC's that could step-up a 3.3v to about 8v and handle around 1a of current or more? The best I can find is the LM2623AMM, but it needs a fair few external components. I would like something as simple as possible to do the job if there is such a thing?! Suggestions appreciated. Even if you just tell me such a thing doesn't exist I want it because I have an unregulated 3.3v line that I want to regulate. So I need to step it up and then regulate it back to 3.3v lol. No other way I can see of doing it, unless there is some wonderful regulator that will manage to regulate 3.3v and not drop more than o.3v? Thanks

15th March 2007, 01:26 PM	#2
theAnonymous1 diyAudio Member Join Date: Feb 2004 Location: Anonymityville	Why would you want to step up the voltage with a DC-DC just to regulate it back down with a linear reg? Just use a regulated DC-DC with 3.3v output. http://datasheets.maxim-ic.com/en/ds...0-MAX1760H.pdf __________________ "If you don't like funerals don't kick sand in Ninja's face." - Ninja

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15th March 2007, 03:30 PM	#3
Tenson diyAudio Member Join Date: Feb 2006 Location: Kent	Since it is designed to 'step-up', will it not dislike having the same voltage on the input as I ask it to output? Thanks for the link though. I guess it will work just fine

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