• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 64 subscribers
  • Views 156 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

Original question:

TPS56121: tps56121

TPS56121: tps56121

5047500
Prodigy 30 points
Part Number: TPS56121

power_supply.docx

please validate attached document for fpga power supply,that sequence is ok or not and suggest us modifications

we are planning to design kintex 7 fpga based board .please suggest power supplies for that one.

  • 0
    TI__Mastermind 20530 points

    I reviewed the U2 and U11 TPS56121 circuits. 

    The U11 is a 2.5V/15A design and only has 22uF capacitor.   

    The effective capacitance will be quite low after derating for the dc voltage on a ceramic capacitor.

    Go to the TPS56121 product folder at ti.com https://www.ti.com/product/TPS56121  and go to the bottom and

    use the webench to calculate the external component values. 

    Similarly, U2 design has 100uF and 22uF. The 2.7uH seems large.  I would expect a 1uH inductance. 

    use the webench tool to calculate the external components.