ESD protection diode in powerSTEP01

[Jacky_flex]

In the powerSTEP01 datasheet, it is mentioned that VSREG must be always less than VBOOT (and VCCREG must be always less than VCC) in order to avoid related ESD protection diode turn on. The device can be protected from this event by adding an external low drop diode between the VSREG and VS pins (VCCREG and VCC pins).However, further explanations on the ESD protection diode is not found in the datasheet, and the diode is also not in the block diagram. So my questions are:

1. Where is the location of ESD protection diode?
2. What are the consequences if ESD protection diode is turned on? And is it a must to add an external low drop diode between the VSREG and VS pins?

[Laurent Ca...]

Dear @Jacky_flex​ 

Sorry for the late answer.

Do you have still this problem to solve?

And just in case, if not, do not hesitate to share the final solution you found. Thanks by advance.

Best regards

[Jacky_flex]

Dear @Laurent Ca...​ 

Thank you for the kind response. Currently we still don't have any answers to the above questions.

It would be highly appreciated if anyone can explain more on the ESD protection diode mentioned in the datasheet.

Best Regards