TPS62823: FB Voltage Accuracy on PSM

Kazuki Kitajima

Part Number: TPS62823

Hello team,

I got a question from the customer.

Could you please tell me the FB voltage accuracy during the PSM?

The DS mentioned, "output voltage rises slightly above the nominal target". The customer would like to understand how slightly changes.

Thank you,

Kazuki Kitajima

over 4 years ago

0 Tanvee over 4 years ago

TI__Genius 13490 points

Hi Kazuki,

The expected typical accuracy of feedback voltage would be between +/-1% and output voltage slight improvement depend on the external parameters used with the device. But this can be avoided by using large capacitors.

Best regards,

Tanvee

0 Kazuki Kitajima over 4 years ago in reply to Tanvee

TI__Intellectual 1480 points

Hi Tanvee-san,

I'm afraid +/-1% FB accuracy would be the spec during the PWM based on the DS.

Do you mean it should be +/-2% FB accuracy during the PSM?

Thank you for your answer.

Best Regards,

Kazuki Kitajima

0 Excel Regidor over 4 years ago in reply to Kazuki Kitajima

TI__Mastermind 27156 points

Hi Kitajima-san,

I will help Tanvee to check the VFB accuracy at PSM.

Keep you posted.

Best regards,

Excel

0 Kazuki Kitajima over 4 years ago in reply to Excel Regidor

TI__Intellectual 1480 points

Excel-san, Tanvee-san,

Thank you for checking the FB accuracy at PSM.

I'm looking forward to hearing about the result of your team.

Best Regards,

Kazuki Kitajima

0 Excel Regidor over 4 years ago in reply to Kazuki Kitajima

TI__Mastermind 27156 points

Hi Kitajima-san,

Hope to provide the data tomorrow thru your TI email.

Keep you posted.

Best regards,

Excel

0 Excel Regidor over 4 years ago in reply to Excel Regidor

TI__Mastermind 27156 points

Hi Kazuki-san,

I will close this thread and discussed internally on your queries.

Thank you.

Best regards,

Excel

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TPS62823: FB Voltage Accuracy on PSM