TPS40428: TPS40428 1V output Schematic check

Alex Wong

Prodigy 190 points

Part Number: TPS40428

Hi all,

I have a project driving a Xilinx UltraScale FPGA and I designing the power supply referencing PMP9444

but my project have a target VCCINT on 1V

so I have pick new res/cap value base on datasheet formula in my design.

I want to ask can anyone help on verify my schematic is functional?

VCCINT_1V_sch.pdf

over 3 years ago

0 yihe over 3 years ago

TI__Guru 65610 points

The engineer supporting this device will be back to office on Monday and will help provide comments on the schematics.

Thank you for your patience.

Regards

Yihe

0 Mahmoud Harmouch over 3 years ago in reply to yihe

TI__Mastermind 28200 points

Hello,

I'm reviewing the schematic. What is the expected load current?

Regards

+1 Mahmoud Harmouch over 3 years ago in reply to Mahmoud Harmouch

TI__Mastermind 28200 points

Hello,

I reviewed the schematic and looks OK. I guess you changed the compensation network from PMP9444 based on output LC filter and load current. I do not see an issue here and that is good you have the 50 Ohms for loop measurement.

Regards

Power management

Power management forum

TPS40428: TPS40428 1V output Schematic check