Buck boost converter for 12 v and 12A output

vignesh M6

Other Parts Discussed in Thread: TL1451, LM5118, PMP15035, LM5170, LM5175, LM5176

Hi,

As per our requirement, we need 12 V@12 A output, and 12 V @22 A output from the 8 to 46 V. The Peak current up-to 96 V. So please guide us for selecting the correct part number.

over 4 years ago

0 vignesh M6 over 4 years ago

Intellectual 300 points

Any Dual output BUCK boost channel converter Is available from TI?

0 Richard Fu22 over 4 years ago

TI__Genius 17600 points

Hi Vignesh,

Thanks for your question.

I do not think there are any dual output buck-boost channel converters available besides the TL1451, but I'm afraid that since the part is quite old, there are more recent parts that can fit your requirements better.

Please check the answer to this thread here:

https://e2e.ti.com/support/power-management/f/196/t/812214

In addition to this post, I would also recommend you to examine the LM5118, which is another buck-boost controller.

Thanks,

Richard

0 vignesh M6 over 4 years ago in reply to Richard Fu22

Intellectual 300 points

Hi sir,

But LM5118 up to 10 A only, Our requirement is 12 A. So i can't able to consider this IC.

instead of direct conversion any other alternate ways are available?

0 Richard Fu22 over 4 years ago in reply to vignesh M6

TI__Genius 17600 points

Hi Vignesh,

I'm currently thinking of a solution and will get back to you by the end of this week.

Thanks,

Richard

0 Richard Fu22 over 4 years ago in reply to Richard Fu22

TI__Genius 17600 points

Hi Vignesh,

The LM5118 can handle more than 10A, but due to thermal constraints it is practical to limit it there.

I would suggest to take a look at PMP15035 as a starting point, which utilizes the LM5170 to generate a similar voltage rail as your requirements. The LM5170 also has multiphase operation capability which can be used to fit your current requirements.

You can also consider using the LM5175/LM5176 in a parallel configuration. You can see the references here:

http://www.ti.com/product/LM5176/technicaldocuments

Thanks,

Richard

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Buck boost converter for 12 v and 12A output