This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DP83867CS: Internal 1.8V LDO

Part Number: DP83867CS

Hello,

Our customer plans to utilize three power supply configuration.

In this case external 1.8V regulator output is shared to VDDA1P8 and VDDIO with specified bypass capacitors located nearby pins.

What is acceptable 1.8V regulator's output voltage variation?

 

We can see on the datasheet, there is Recommended Operating Conditions for VDDA1P8 as below.

VDDA1P8   1.71(min) 1.8(typ) 1.89V(max),  Also VDDIO has same specification.

So, if external regulator's Load regulation is within this voltage range DP83867 can work fine?

Regards,

Mochizuki