TPS63020: PS=LOW EMI?

kwon

Intellectual 920 points

Part Number: TPS63020

HI.

In general, does PS=LOW have less EMI than PS=HIGH?

Best Regards,

KWON.

over 2 years ago

+1 Tao Zhang over 2 years ago

TI__Mastermind 32350 points

Hi KWON,

Depend on your load, if load is heavy enough, i think there will be no difference. But if load is light enough, yes, i think you are correct.

Regards

Tao

+1 kwon over 2 years ago in reply to Tao Zhang

Intellectual 920 points

Thank you for your answer.

In summary, when ps=low, the switching frequency is low when the load is 100mA or less, so the EMI is low, but when the load is 100mA or higher, it operates at a fix frequency 2.4MHZ and has the same high EMI as when PS=HIGH.

Is it right?

Best Regards,

KWON.

+1 Tao Zhang over 2 years ago in reply to kwon

TI__Mastermind 32350 points

Hi KWON,

Yes, that is correct. But the threshold may not 100mA.

Regards

Tao

0 kwon over 2 years ago in reply to Tao Zhang

Intellectual 920 points

Thank you.

Best regards,

KWON.

0 Tao Zhang over 2 years ago in reply to kwon

TI__Mastermind 32350 points

Hi, Kwon,

you are welcome, see you next time.

Regards

Tao

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TPS63020: PS=LOW EMI?