TPS63710: Is it possible to meet EN55022 requirement ?

Shinichi Inoue

Guru 21566 points

Part Number: TPS63710

Tool/software:

Dear Specialists,

My customer is considering TPS63710 instead of LTM4651 and has a question.

I would be grateful if you could advise.

---

I am considering replacing the power supply I am considering using LTM4651 with TPS63710.

・Vin＝9V
・Vout＝-2.8V
・Imax＝600mA
・It is for an op-amp that amplifies the analog signal of the optical sensor and inputs it to the AD converter.

The LTM4651 features low noise and meets EN55022B requirement.

Can TPS63710 be also made EN55022B compliant?

If the TPS63710 satisfies EN55022, then it is possible to consider it for replace.

I would appreciate any comments on whether it is possible to replace it and any points to note.
If it can be replaced, there will be a big cost advantage.

---

I appreciate your great help in advance.

Best regards,

Shinichi

3 months ago

0 Gautam Iyer 3 months ago

TI__Genius 9950 points

Hi Shinichi,

Shinichi Inoue said:
Can TPS63710 be also made EN55022B compliant?

Offcourse! If the layout guidelines are followed well and switching frequency is close by, I don't see any reason for TPS63710 to yield any different test results. RE for sure can differ due various other reasons but CE should be very similar.

Regards,

Gautam

0 Shinichi Inoue 3 months ago in reply to Gautam Iyer

Guru 21566 points

Hi Gautam,

Thank you for your reply.

That sounds good.

Could you please share recommended layout and test data with me?

I'll share the customer.

I appreciate your great help and cooperation.

Best regards,

Shinichi

0 Gautam Iyer 3 months ago in reply to Shinichi Inoue

TI__Genius 9950 points

Shinichi Inoue said:
Could you please share recommended layout and test data with me?

Layout recommendations as per datasheet. As for test data, you can refer to this presentation material:

8345.understanding_measuring_and_reducing_outputnoise_0.pdf

0 Shinichi Inoue 3 months ago in reply to Gautam Iyer

Guru 21566 points

Hi Gautam,

So there are no EMI performance measurement results using the TPS63710EVM-811?
If so, the customer will evaluate EMI using the EVM and add the circuits in the documents you attached as appropriate.
I think it will be very difficult for the customer to evaluate EMI performance themselves, but I will share this information with the customer for now.

Would it be possible to share the attached documents with the customer?
I cannot save the PDF file on my PC, so could you attach a file with the protection removed?

I appreciate your great help and cooperation.

Best regards,

Shinichi

+1 Gautam Iyer 3 months ago in reply to Shinichi Inoue

TI__Genius 9950 points

Here's the link Shinichi, https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwir-NOo08WNAxVJxjgGHWRwCYYQFnoECBgQAQ&url=https%3A%2F%2Fe2e.ti.com%2Fcfs-file%2F__key%2Fcommunityserver-discussions-components-files%2F196%2F3362.understanding_5F00_measuring_5F00_and_5F00_reducing_5F00_outputnoise_5F00_0.pdf&usg=AOvVaw36GYpWMv05Fz7AQxFxHjWk&opi=89978449

0 Shinichi Inoue 3 months ago in reply to Gautam Iyer

Guru 21566 points

Is it possible to share the document you sent?

0 Gautam Iyer 3 months ago in reply to Shinichi Inoue

TI__Genius 9950 points

Offcourse You can share this link/file with the customer, Shinichi.

Power management

Power management forum

TPS63710: Is it possible to meet EN55022 requirement ?