Recommendation about boost converter 12V to 28V@500mA with low noise.

Oscar Gomez Fuente

Expert 2066 points

Other Parts Discussed in Thread: TPS61175

Hi everyone,

I'm working on a new design. I need to boost 12 V to 28V with a maximum output of 500mA. The problem is that this IC is going to be placed in a circuit with OMAPs and I need the best option with noise as low as possible.

There are several options, but I would like to choose the best option for my design, taking into consideration the requirement of low noise.

Best regards.

over 8 years ago

0 Helen chen over 8 years ago

TI__Mastermind 40080 points

You can choose TPS61175 . its operation frequency is selectable from 200k-2M.

What is the operaiton frequency of OMAPs?

0 Oscar Gomez Fuente over 8 years ago in reply to Helen chen

Expert 2066 points

Thank you very much for your quick reply and your help.

In my design, there are two DACs AD7367 with some OMAPs OPA197IDVB. The frequency of acquisition is from 500KHz to 900KHz.

Best regards.

0 Helen chen over 8 years ago in reply to Oscar Gomez Fuente

TI__Mastermind 40080 points

Thanks for the update.

I suggest you set the operation frequency at 1.2MHz. So please set the Rfeq=80k.

By the way, could you please share more application information with us? Like in what kind of equipment, Volume.My email address is helen-chen@ti.com

0 Oscar Gomez Fuente over 8 years ago in reply to Helen chen

Expert 2066 points

Thank you very much.

I'll send you more information by email.

Best regards.

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Recommendation about boost converter 12V to 28V@500mA with low noise.