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TPS7B7702-Q1: FB leakage current and FB resistor selection requirement

Dongbao Zhou
Expert 4170 points
Part Number: TPS7B7702-Q1

Tool/software:

hi team,

May you help on:

1. FB pin leakage current data?

2. Feedback resistor selection requires RFB1&RFB2<100kohm, what are the consideration?

3. Is it ok to use FB resistor selection higher than 100kohm? Any impacts on the loop stability of the FB resistor selection?

Regards,

Dongbao

  • 0
    TI__Genius 13670 points

    Hi Dongbao,

    1. This is about 1μA max

    2. I do not understand this question. Are you asking the reason behind why we have specified RFB1&RFB2<100kohm?

    3. It is okay to do this. There is no impact on loop stability however the accuracy of the output would be impacted if larger values of R1 and R2 are chosen.

    Regards

    Ishaan