TPS546C25: Webench simulation

kenji shimada

Prodigy 210 points

Part Number: TPS546C25

Tool/software:

I read related thread.
The thread say 'TPS546C25 will be supported at 2025 May in WebBench'.

But I want to desgin our product with TPS546C25 by now.
Can you support me?

9 months ago

0 Tahar Allag 9 months ago

TI__Mastermind 32350 points

Hello,

WEBENCH will be released by the time we RTM the device,

What is the support you need? SCH review?

Thanks

Tahar

0 kenji shimada 9 months ago in reply to Tahar Allag

Prodigy 210 points

I would like a recommended circuit and BOM list for our design requirements.
Our design requirements assume the following:
①Vin=11.5V-12.5V nominal 12V
②Vout=0.825V-0.875V nominal 0.85 (FPGA logic Power)
③Iout=MAX20A

0 Calan Elaya 9 months ago in reply to kenji shimada

TI__Genius 11155 points

Hello,

Tahar and David are out for Thanksgiving U.S. Holiday. A response will be posted next week.

Thank you,

Calan

0 David_Daniels 9 months ago in reply to Calan Elaya

TI__Mastermind 23695 points

Shimada-san,

Yes, I can create a recommended circuit. I will send you on Friday.

David

+1 David_Daniels 9 months ago in reply to kenji shimada

TI__Mastermind 23695 points

Shimada-san,

Here is an example schematic of a 0.85V using the internal feedback divider and VSEL pin strap setting of 0.85V.

The datasheet has an example pcb layout

If regulating to 0.825V or 0.875V is required, an external feedback divider may be a better choice.

An external divider configuration would add an external divider, msel1 and msel2 resistor values would change.

The internal default reference voltage is 0.4V, unless changed via pmbus.

The resistor divider for 0.875V would be 10kohm for low side and 11.8kohm for high side resistor.

Power management

Power management forum

TPS546C25: Webench simulation