LF33 Substitutes

[jab]

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.

[TK.]

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.

[jab]

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

[TK.]

Both are suitable, but LM3940 is the better choice because the pinning is compatible to LF33 -> buy it! :)

 

Best Regards, Thorsten.

[jab]

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