TPSM83100: Stability (Bode plot)

Hi Shinichi-san,

We do not have tool  and no automatic phase compensation circuit internal too.

But, you can use TPS631000 for Webench simulation because TPSM83100 is based on TPS631000. 

Regards

Tao

Tao,

I have two additional questions.

• It looks the WEBENCH Power designer doesn't support the TPS631000, either. How can I perform the stability analysis?
• How can I optimize the stability if a result of the analysis doesn't satisfy a design target?

Best regards,
Shinichi Yokota

Hi  Shinichi-san,

Sorry for mistake. How about  PSPICE model?  You can download it from ti.com.

There is no much way to optimize the loop stability because most part of loop is internal. but we can optimize by Cout or Cff.

Regards

Tao

Tao,

Tao Zhang said:

There is no much way to optimize the loop stability because most part of loop is internal. but we can optimize by Cout or Cff.

Do you mean that the TPSM83100 is basically designed to operate in a stable manner although it doesn't integrate an automatic phase compensation circuit?

Tao Zhang said:

How about  PSPICE model?  You can download it from ti.com.

Or, can it be an option to ask your team to perform stability analysis on my behalf if I provide a schematic?

Best regards,
Shinichi Yokota