LM2611: Recommended inverting boost converter

Hideki Hayashi1

Part Number: LM2611
Other Parts Discussed in Thread: TPS63700

Hi team,

Can you suggest inverting boost converter with the requirements below?

Vin: 5.2V, Vout: -12.4V, Iout: 0.4A

TPS63700 can not draw enough current in this Vin/Vout case. I have submitted the other post, but TPS doesn't have such solution, does LM have?

Regards,

Hideki

0 Brigitte over 3 years ago

Hello Hideki,

I will forward your request to the buck team as a buck converter can be used to drive a negative output voltage.

Best regards,
Brigitte

0 Miranda Gu over 3 years ago in reply to Brigitte

Hi Brigitte,

We will check this and reply Hideki soon.

0 Zhao Ma over 3 years ago

Hi, Hideki

You can refer below reference design for your application.

BTW, What is your application? what is your end equipment?

0 Hideki Hayashi1 over 3 years ago in reply to Zhao Ma

Hi Zhao,

Thanks for application note, I already read snva722b. I think both will be fine.

The load is negative supply of opamp, end equipment is smart speaker.

Regards, Hideki

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