This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS54425: Does FB or CAP's placement at output loop of TPS54425 affect TPS54425's phase margine?

Part Number: TPS54425
Other Parts Discussed in Thread: TPS62914, TPS62913

Hello teams

From prebious E2E support, I got following url.
www.ti.com/.../slva546.pdf
I found that important point is how to choice the parts inside the feedback loop.

[Question]------------
If above is true, FB or Three terminal cap are placed at outside of feedback roop is no problem, right?
----------------------------

Now, we are considering bellow circuit and parts.
Please refer belllow information to answer above question.

12Vin =>TPS54425(5Vout) + {FB or Three terminal cap}(※1) + LDO(※2)
※1 and ※2 will be placed outside of TPS54425's feedback loop.

※1
①BLM18KG601SN1D、148146711、1300mA =>FB
②BLM18KG221SN1D、148146411、2200mA =>FB
③BLM18PG121SN1D、140079421、2000mA =>FB
④NFM18PC106D0J3L => Three terminal cap

※2
LDO's input cap is 2.2uF. and we will use 4 LDO.
So total 8.8uF will be placed.

Best regards,

Akashi