WEBENCH® Tools/TPS61085: Rfbb value of TPS61085

takahiko yokota

Mastermind 7135 points

Part Number: TPS61085

Tool/software: WEBENCH® Design Tools

I simulated TPS61085 by Webech.

The condition is Vin=5V, Vout=7V and Iout=50mA.

Rfbb of the simulation result is 34k.8Ω. But Rfbb of datasheet is 18kΩ.

Which is correct?

Best regards,

Yokota

over 7 years ago

0 Helen chen over 7 years ago

TI__Mastermind 40080 points

18kohm on the datasheet is based on the 50uA current flowing through the resistor. but acturally, this current can be as low as 10-20uA. So you can see some difference from the Webench result. You can use 34.8k hom result.

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WEBENCH® Tools/TPS61085: Rfbb value of TPS61085