Hello,
Our customer use the DP83867 with three supply configuration.
It is mentioned "When powering down the DP83867, the 1.8-V supply should be brought down before the 2.5-V supply." on the DS.
The customer powering down the VDDA2P5 and VDDA1P8 almost at the same time.
Then the voltage of the VDDA1P8 is higher than VDDA2P5 as 430mV.
Is there any problem?
I attach the scope shot of the power down condition.
DP83867_Power_Down_Sequence.pptx
Best Regards,
Naoki Aoyama