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BF518 VDDINT

Question asked by dlh on Mar 8, 2012
Latest reply on Mar 8, 2012 by MaurizioZ

Hey,

 

The BF51X manual says that the max voltage for VDDINT is 1.47V, however int the VDDINT vs IDD and VDDINT vs fCCLK tables it goes up to 1.5V. For a new revision of a custom board, I would ideally like to run VDDINT at 1.5V as it is easier to sourve a fixed LDO regulator than say 1.4V or 1.45V etc and would therefore cut down on BOM. I guess the question then is 1.5V really outside the safe operating range?

 

And a related question, is anyone aware of a single chip powering solution or multiple output regulator suitable for powering the BF51X (i.e. supplying 1.4V, 1.8V, 2.5V and possible 3.3V). I have had a browse of Digikey and the 1.4V doesn't seem to be a common voltage for fixed regulators.

 

Thanks..

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