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TPS54061: TPS54061 available min feedback resistor value

Red Yen
Expert 4310 points
Part Number: TPS54061

Hi Support 

customer would like to know the min feedback resistor value, the current usage is upper  31.6Kohm bottom is 10khom would like to change to upper 3.16kohm and bottom 1kohm 

any side effect behind ?

thanks a lot 

  • 0
    TI__Prodigy 330 points

    Hi Red,

    It's not going to affect the device performance, but it will raise the current draw a little (for 3.3Vout, almost a milliamp), so the efficiency (and quiescent current) at light load will suffer a bit. There's no minimum value as such for the feedback resistors, but there's no advantage in going too low and it will burn current.