TPS53647: Vout issue confirmation

Hi Allen,

I wouldn't think this is an issue, the maximum Voltage on the VSP pin is 3.6V. 

Best Regards,

Chris Bartuska

Hi Chris：

 Tks for the comments, as i further check the E2E and the spec, 2.5V is workable with this device. 

 And when i found this area mentioned there is an option to disable power stage fault as described in MFR_SPECIFIC_07[3]. so we did found the setting description with MFR_SPECIFIC_07 register. is that a mistake or any new register can help to disable the power stage?

Hi Allen,

I believe this is a typo, this controller does not have the ability to mask specific VR_FAULT and PMB_ALERTs. A power stage fault will make the Vtsen >2.5 - asserting VR_FAULT and PMB_ALERT.

Best Regards,

Chris Bartuska

Hi Chris:

 Tks for your comments. it is clear on my side.

This is another problem we face. We found that even if we click the [Write to Hardware] or [Store Config to NVM] button, the new parameters sometimes cannot be saved with our EVM board.

 i try to slow down the UART speed but it doesnt work ,if their some details for this program setting? tks

Hi Allen,

Do you know which parameters are not being saved? Some require a store to NVM and a power cycle to take effect. Also, make sure the rail is not regulating while changing parameters.

Best Regards,

Chris Bartuska