LP5868: What value ferrite bead do I need for LP5868 good PCB design practice for EMI?

Hi Cyrus,

Nice to hear you. Do you have question about the capacitor's value for LP5868 schematic design?

The document is a general layout guidance, and I'm not clear about your question, sorry for that.

Could you provide me more details about your question?

Thanks!

Best Regards,

Ives Li

Ferrite bead, not a capacitor, Ives.

Nice to hear from you too. The ferrite bead is recommended by TI in the document I attached. But no value was provided. However, capacitors and resistor values are specified.in the data sheet for the 5868.

Hi 

I will help you to check the value and reply you next week, Thanks!

Hi,

Sorry but I didn't find any related resource for LP5868, I think you can design your schematic as our reference design.

Thanks!

Please send a link or identify your reference design. Thanks.

Hi,

Below is the reference PCB layout, we didn't use the ferrite bead.

Thanks!

Can you please send me the design and the gerber files? Thank you.

Hi 

This screen shoot is from datasheet, you can check the datasheet for more information.

Thanks!

You can also take LP5860EVM's layout as your reference.

LP5860 Evaluation Module

LP5860 and LP5868 share the same package.