LM2677: Design Review

sonali zodage

Part Number: LM2677

Hi,

We are using LM2677SD-5.0/NOPB converter in one of our design. I have attached an schematic for this converter which we have design. Please review the schematic and provide your feedback.

over 2 years ago

0 Frank De Stasi over 2 years ago

TI__Guru 72035 points

Hello

I will assume that your input voltage is about 10V to 12V.

Please be sure that your inductor is rated for the current limit of the device; about 7A

This is to ensure that the inductor will not saturate during a fault condition.

Also, be sure that the diode is rated for the load current.

We would appreciate an opportunity to review the PCB layout when it is ready.

Thanks

0 Frank De Stasi over 2 years ago in reply to Frank De Stasi

TI__Guru 72035 points

Hello

I will close this post due to inactivity.

Thanks

0 sonali zodage over 2 years ago in reply to Frank De Stasi

Intellectual 365 points

Hello

Sorry for the late reply.

Input voltage is 10 to 12.8V.
Inductor part number is SRP6060FA-150M and it's 6A

Our ouput required current is 3A

0 Frank De Stasi over 2 years ago in reply to sonali zodage

TI__Guru 72035 points

Hello

It looks like your inductor has a soft saturation characteristic; so that should be OK.

If you can provide images of your PCB layout, we will be happy to review.

Thanks

0 Frank De Stasi over 2 years ago in reply to Frank De Stasi

TI__Guru 72035 points

Hello

I will close this post.

When you are ready for a PCB review, please open a new post.

Thanks

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LM2677: Design Review