TPS54200EVM-818: Why does TPS54200EVM-818 have a R4?

R.Fukunaga

Expert 1075 points

Part Number: TPS54200EVM-818
Other Parts Discussed in Thread: TPS54200, TPS92200

Hi all,

I would like to know why TPS54200EVM-818 have a R4.

Is R4 necessary when I design the circuit?

Best regards

Ryusuke

0 Zhiqian Wu over 1 year ago

Hi, Ryusuke

Our expert is out of office today, he will give you a feedback tomorrow.

0 Steven Li over 1 year ago

Hi Ryusuke,

R4 is used to measure the loop response. It is not necessary if you do not measure the loop response.
I would recommend you switch to the next generation of TPS54200, which is TPS92200.
You can refer to this thread for more detailed information. TPS92200 and TPS54200 are quite alike. TPS92200D2EVM: About the value of Rfb - Power management forum - Power management - TI E2E support forums

Best Regards,

Steven

Power management forum