LM5119: Please kindly suggestion buck solution for 60W application

Eric Chen4

Expert 2370 points

Part Number: LM5119

Hi,

Now we have one DCDC Buck spec as below.

Vin:12 ~ 56V

Vout: 5V

Iout: 12A

Please kinldy suggestion Buck solution & similar reference design for reference.

Thanks.

Regards,

Eric

over 6 years ago

0 Qian Chen over 6 years ago

TI__Mastermind 24075 points

Hi Eric,

LM5119 is a 2 channel controller. For 12A, one phase is enough.

I think you can use Webench designer to find the right solution.

The Webench designer is available on below link right side.

www.ti.com

Thanks

Qian

0 Eric Chen4 over 6 years ago in reply to Qian Chen

Expert 2370 points

Hi Qian,

Yes, I already run webench but only show LM5119 PN.

So I need your better suggestion for that.

Is there Webench issue?

Thanks.

Regards,

Eric

0 Qian Chen over 6 years ago in reply to Eric Chen4

TI__Mastermind 24075 points

Hi Eric,

Looks there is no single channel controller fitting your design.
I think you can use LM5119 and only use one channel for 12A load.

Thanks
Qian

0 Qian Chen over 6 years ago in reply to Qian Chen

TI__Mastermind 24075 points

Or you can use LM5119 both channels to create a 2phase design for better performance like efficiency/ripple and etc.

Thanks
Qian

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LM5119: Please kindly suggestion buck solution for 60W application