TPS54425: Would you please check our schematic of TPS54425?

michihiro akashi

Prodigy 120 points

Part Number: TPS54425

Hello teams

Would you please check our schematic of TPS54425?

If you have any problem, please give me.

this circuite usage is bellow.

Vin 12V

Vout 5V

Iout 1.1A

Ta :85℃

we guess it does not meet phase margine.

Best regards,

akashi

6 months ago

0 Lucia Gao 5 months ago

TI__Mastermind 19530 points

Hi Akashi,

Thanks for reaching out. Please kindly let me check and get back to you soon. Thanks!

BRs

Lucia

0 michihiro akashi 5 months ago in reply to Lucia Gao

Prodigy 120 points

Hi Lucia

Great!
Could you please answer until in tomorrow morning in japan time?
Thanks for your specitial support.

Best regards,
akashi

+1 Lucia Gao 5 months ago in reply to michihiro akashi

TI__Mastermind 19530 points

Hi Akashi,

I would recommend you can follow the Webench design as shown below:

Power Designer (ti.com)

I noticed that you did not add Cff. For 5Vout application, I would highly recommend you to add Cff for better loop response performance. Otherwise, the phase margin will not be good. Thanks!

BRs

Lucia

Power management

Power management forum

TPS54425: Would you please check our schematic of TPS54425?