REGOUT0 providing an output of 1.62V instead of 1.8V(High voltage mode)

[Santu_Daikoku]

I'm building a custom board based on nRF52840. 

I'm providing 5V input via USB to VDDH & USB pins. The default output of the first internal regulator during high voltage mode is 1.8V. 

In the datasheet, it's mentioned as +5% & -10% tolerance for regout0. We're getting the output voltage of 1.62V(it's almost on the verge of -10% tolerance). 

Unfortunately, the PMIC's pullup & SWD power pins are connected to regout0. The SWD isn't detecting 1.62V as it needs min.1.7V(1.8V needed with 5% tolerance). 

Any suggestion would be very helpful.  

[Martin Sivertsen]

Closed.

Duplicate case: devzone.nordicsemi.com/.../277288

[carrino]

This ticket is private.  I would like to read it because I need to understand the voltage regulator at 1.8V also.