jab Posted January 27, 2014 Report Share Posted January 27, 2014 Hey folks, I'm having trouble finding an LF33 here in Taiwan. Any suggestions for a substitution? The data sheet calls this part a "VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT", but I don't quite understand the details and I wouldn't be able to explain in Chinese (I'm an expat). Thanks in advance. Quote Link to comment Share on other sites More sharing options...
TK. Posted January 27, 2014 Report Share Posted January 27, 2014 Any voltage regulator which converts from 5V to 3.3V should do this job, as long as it supports at least 500 mA (fine if it also supports 1A) Maybe you can find a LM7833? -> http://www.taitroncomponents.com/catalog/Datasheet/LM7833.pdf Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
jab Posted February 2, 2014 Author Report Share Posted February 2, 2014 (edited) Any voltage regulator which converts from 5V to 3.3V should do this job, as long as it supports at least 500 mA (fine if it also supports 1A) Maybe you can find a LM7833? -> http://www.taitroncomponents.com/catalog/Datasheet/LM7833.pdf Best Regards, Thorsten. Thanks Thorsten - I took a look around the "electronics street" and wasn't able to find a 7833, best I could come with are these: 7585-3.3T: http://pdf.datasheetcatalog.com/datasheets2/59/590930_1.pdf LM3940: http://www.ti.com/lit/ds/symlink/lm3940.pdf Are either of these suitable? Edited February 2, 2014 by jab Quote Link to comment Share on other sites More sharing options...
TK. Posted February 2, 2014 Report Share Posted February 2, 2014 Both are suitable, but LM3940 is the better choice because the pinning is compatible to LF33 -> buy it! :) Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
jab Posted February 10, 2014 Author Report Share Posted February 10, 2014 (edited) Both are suitable, but LM3940 is the better choice because the pinning is compatible to LF33 -> buy it! :smile: Best Regards, Thorsten. Thanks for that and other support with this killer project, have a beer on me! Edited February 10, 2014 by jab Quote Link to comment Share on other sites More sharing options...
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