Hi, TI experts.
We have mass production using PTH12040 in PMIC.
It is no problem until production this lot.
Newly applied PTH12040 has some noise like " shi~~~ ".
And there are differences old and new module. The old module inductor’s coil has a glue but new module doesn’t have glue on coil.
I attached old_normal module and new_abnormal module.
old - normal
new- abnormal.
Could you please check the coil's glue can affect the noise? And Could you Check the manufacture of this two coil?
Best Regards.
Jay.