LMR43610-Q1: R_FBT requirement

Youhei Miyaoka

Part Number: LMR43610-Q1

Tool/software:

Hi team,

From our recommendation, it looks that some settings don't fulfill the eq(6) requirement. This table means within ~500Ohm is OK?

Customer wants 8.5V output and plan to set Rfbt = 84.5kOhm, Rfbb = 11.3kOhm. Could you check the setting?

Regards,

Youhei MIYAOKA

2 months ago

0 Ben C 2 months ago

TI__Mastermind 37805 points

Hi Miyaoka-san,

Yes, the table shows the typical recommended feedback resistor values.

Ben

0 Youhei Miyaoka 2 months ago in reply to Ben C

TI__Intellectual 1875 points

Hi Ben,

Thanks. I want to confirm eq 6 because some condition does not fulfill.

When Vout = 2.5V for example, eq 6 is RFBT <= 25kOhm. However our recommendation table shows 24.9kOhm. Could you check it please.

I also want to check you about customer conditions.

> Customer wants 8.5V output and plan to set Rfbt = 84.5kOhm, Rfbb = 11.3kOhm.

Regards,

Youhei MIYAOKA

+1 Ben C 2 months ago in reply to Youhei Miyaoka

TI__Mastermind 37805 points

Hi Miyaoka-san,

Youhei Miyaoka said:
When Vout = 2.5V for example, eq 6 is RFBT <= 25kOhm. However our recommendation table shows 24.9kOhm. Could you check it please.

This should be fine as we recommended in the datasheet.

Youhei Miyaoka said:
Customer wants 8.5V output and plan to set Rfbt = 84.5kOhm, Rfbb = 11.3kOhm.

These conditions are also ok.

Ben

0 Youhei Miyaoka 2 months ago in reply to Ben C

TI__Intellectual 1875 points

Hi Ben,

Thank you for confirming.

Regards,

Youhei MIYAOKA

0 Ben C 2 months ago in reply to Youhei Miyaoka

TI__Mastermind 37805 points

Hi Mikaoka-san,

No problem. Good luck to you! :-)

Ben

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LMR43610-Q1: R_FBT requirement