LM5164: Lowest EMI: LM5164 vs LM501x

Wouter Kragt

Intellectual 1260 points

Part Number: LM5164
Other Parts Discussed in Thread: LM5013, LM5012, , LMR38020, LMR38015

Hello team,

Which devices has the best EMI performance, the LM5012, LM5013, LM5164 and LMR38020xy?

Can you share the results of the EMI test of the best performing device?

Thank you.

Kind regards,

Wouter Kragt

8 months ago

0 David Baba 8 months ago

TI__Mastermind 32620 points

Hello Wouter,

the LMR device has spread spectrum so may provide some advantage over the other constant on time devices that do not have spread spectrum. Will provide you with some update on getting EMI results, if we have any to share, tomorrow. Thanks for your patience.

David.

0 Denislav Petkov 8 months ago in reply to David Baba

TI__Mastermind 19851 points

Hello Wouter,

I also think the LMR device will perform better.

What EMI standard are you looking to pass?

Regards,

Denislav

0 Wouter Kragt 8 months ago in reply to Denislav Petkov

TI__Intellectual 1260 points

Hello Denislav,

I am not sure on which standards they want to pass.

Let me check this.

Any updates on which devices has the best EMI performance?

Kind regards,

Wouter Kragt

0 Denislav Petkov 8 months ago in reply to Wouter Kragt

TI__Mastermind 19851 points

Hello Wouter,

The LMR device will do better. I am checking with the team who worked on it for any data.

Regards,

Denislav

0 Felix Huber 8 months ago in reply to Denislav Petkov

Prodigy 20 points

Hello Denislav,

are there any news regarding to the EMI data for the LMR38020?

Is there a difference in the EMI performance between the devices LMR38020 and LMR38015?

Thanks.

Regards,

Felix Huber

0 Denislav Petkov 8 months ago in reply to Felix Huber

TI__Mastermind 19851 points

Hi Felix,

Please see the attached data from the team.

I expect the '20 and the '15 to have the same EMI performance, given the same input/output conditions, BOM, and PCB layout.

Regards,

Denislav

LMR380xx EVM EMI Performance.pdf

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LM5164: Lowest EMI: LM5164 vs LM501x