TPSM82823: TPSM82823SILR

Hello Suliman,

I would recommend the same thing here as the thread you opened with TPS62865.

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1032251/tps62865-tps62865

Let me know if you need any further help.

Thanks a lot!

Regards,

Dorian

Hi Dorian,

The training video helped me to calculate the optimum output cap,  I'm using as well PDN simulation tool which include Ztarget and noise based on PCB and FPGA parameters.

I get 110uF, using TPS62865 I think it's good enough because the max Cout is 150uF maximum.

I'm wondering if I can use with 110uF the module TPSM82823?

Thanks,

Hello Suliman,

It is stated in TPSM82823 that: "The recommended typical output capacitor value is 2 × 10-µF or 1 × 22-µF with an X5R or X7R dielectric. Values over 47 µF can degrade the loop stability of the converter". I would in this case not recommend to go up to 110uF at the output.

Would you be able to go with two times TPS62865 ? Or are we talking about the same power rail ?
Let me know if you have nay further questions.

Thanks a lot!

Regards,
Dorian

Hi Dorian,

Thank you for the clarification, I'm talking for another rail, I can use TPS62865 for rails require Cout over 47uF

Thank you very much for the great support.

Suliman