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scotty1024 · 01-29-2007, 09:57 PM

Another option for powering white LED's.

http://www.national.com/ds.cgi/LM/LM2703.pdf

You can buy an evaluation board: http://www.national.com/pf/LM/LM2703.html

It will happily run off 2 AA/AAA's and drive up to 4 white LED's with an efficiency of around 90%.

01-29-2007, 09:57 PM	#32
scotty1024 Banned Posts: 1,300 Karma: 1479 Join Date: Jul 2006 Location: Peoples Republic of Washington Device: Reader / iPhone / Librie / Kindle	Another option for powering white LED's. http://www.national.com/ds.cgi/LM/LM2703.pdf You can buy an evaluation board: http://www.national.com/pf/LM/LM2703.html It will happily run off 2 AA/AAA's and drive up to 4 white LED's with an efficiency of around 90%.