TPS61041: If feedback resistance changes to high impedance, what's thing should consider?

Part Number: TPS61041

Hi team,

Customer want to change the feedback resistance from R1=2.2M and R2=160k to R1=4.3M and R2=330k respectively, keeping same voltage =18V.

What's the concern they should consider or is it acceptable in design or not?

Regards, Naoki Yada

over 5 years ago

0 Helen chen over 5 years ago

TI__Mastermind 40080 points

higher dividing resistor may lead to poor output voltage accuracy. Higher current flow through the dividing resistor gives out the higher accuracy. But if their output voltage accuracy is not tight, they can do so.

0 Keisuke Wakazono over 5 years ago in reply to Helen chen

Prodigy 10 points

Thank you very much. I undertand.

Regards, Keisuke Wakazono

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TPS61041: If feedback resistance changes to high impedance, what's thing should consider?