TPS61070: FB Pin Bias Current

Matthew Padilla

Part Number: TPS61070

Hello,

I am wondering if the 3% total accuracy includes the error due to the FB pin bias current? (Assuming the datasheet recommendations are followed to select the FB resistor)

Thanks,

Matt

over 1 year ago

0 Jing Ji over 1 year ago

TI__Intellectual 2645 points

Hi Matthew,

Suggest you choose bottom FB resistor <500kohm, and error due to the FB pin leakage current will be <1%. And the smaller resistance, the smaller error due to FB leakage current. So it should be no problem to get +/-3% total accuracy.

Best,

Jing

0 Nini Zhong over 1 year ago

TI__Expert 7505 points

Hi Matt，

it's not included.

Power management

Power management forum

TPS61070: FB Pin Bias Current