TPS631000: Loop response check

Hi Yishan,

Tao will give you feedback soon. Thanks for your patience.

Aurora

Hi  Yishan,

I think you mean the spikes in the bode plot test are not reasonable, right?   

Mostly, they should be caused by unexpected noise sensed or noise injected into loop is not stable. For device itself, it has no chance to generate spikes in attahced pictures.

Regards

Tao

Hi Tao，

Except for the noise spike, what about the gain and cross frequency here. Do you think the results make sense both in our EVM and customer board?

Thank you,

Yishan Chen

Hi  Yishan,

From EVM side, result match with tests i did before.  For customer board, please share the total effective output capacitance for further check.

Regards

Tao

3x10uF with 0.1uF capacitor

sorry to tell that the info you sent does not help, i need the part number of outpu capacitor.

Hi Tao,

I get the capacitor datasheet they are using now, please refer to below datasheet to check the loop response.

DataSheet_CL05A106MQ5NUN_20250409.pdf

Thank you,

Yishan Chen