TPS7A20: AC signals sent to the LDO input to generate the PSRR tables

Roy Chou1

Part Number: TPS7A20

Tool/software:

Hi Team,

For the data sheet of the TPS7A20 LDO (SBVS338G), what is the amplitude of the AC signals sent to the LDO input to generate the PSRR tables and graphs?

Regards,

Roy

over 1 year ago

0 Hannah Grace over 1 year ago

TI__Genius 15125 points

Hello,

Thank you for your question.

I have reached out to one of our validation engineers about what the line injection was set to for the PSRR graphs.

I will let you know as soon as I hear back.

Best,

Hannah

0 Hannah Grace over 1 year ago

TI__Genius 15125 points

Hello Roy,

After looking into this more, our validation engineer has determined that the line injection was not well documented enough to know what this was set to when producing the PSRR tables and graphs.

Validation did state that it is safe to assume that the injection voltage was =<100mV peak to peak, but we do not know for sure.

Best,

Hannah

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TPS7A20: AC signals sent to the LDO input to generate the PSRR tables