LMQ66430-Q1: LMQ66430

sudharshana panduranga

Prodigy 120 points

Part Number: LMQ66430-Q1

Hello,

We are using LMQ66430-Q1 buck regulator.

Is it possible to provide Ibias of the IC?

It's required to calculate Iqvin at no load.

Thank you,

Sudharshana

over 2 years ago

0 Youhao Xi over 2 years ago

TI__Guru* 78060 points

Hi Sudharshana,

Thank you for using our products. No load Iqvin is given in the EC table. Or I misunderstood your question?

Thanks,

Youhao

0 sudharshana panduranga over 2 years ago in reply to Youhao Xi

Prodigy 120 points

Hello

In section 7.6 they have given, for no load Io=0A.

But I am trying to calculate this value because we have to use same IC for 3.8V.

There is formula in 8.3.12. That Ibias value is required.

The answer you have given is same Ibias?

Can I use these values as I bias in calculation?

Regards,

Sudharshana

0 Youhao Xi over 2 years ago in reply to sudharshana panduranga

TI__Guru* 78060 points

Let me double check with our expert who is currently ooo but I should be able to get back to you tomorrow.

0 Youhao Xi over 2 years ago in reply to Youhao Xi

TI__Guru* 78060 points

Hi Sudharshana,

Our expert said it is not the same parameter. IBIAS is 4uA typical, and we are working to add the info in our next revision of the datasheet. Please use it in your calculation.

Best Regards,

Youhao

0 Youhao Xi over 2 years ago in reply to Youhao Xi

TI__Guru* 78060 points

HI Sudharshana,

May I assume the issue is resolved and we can close this thread? You can re-open it by adding a new post.

Thanks,

Youhao

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LMQ66430-Q1: LMQ66430