• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 68 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.

TPS563203: On Resistance

Ken Kwack
Prodigy 300 points
Part Number: TPS563203
Other Parts Discussed in Thread: TPS563202

Hello Team,

Our customer using TPS563202 right now, but for next roadmap, TPS563203 looks can be replaced in future.

But, I have several questions as below, could you answer for me?

1. Why TPS563203 has higher Rds on than other devices include TPS563202? Similar 3A devices have 60mohm/30mohm.

2. I guess lower current device has higher Rds on. Could you explain why lower current needs higher Rds on?

Thank you!

  • 0
    TI__Genius 13381 points

    Hi Ken!

    Rds_on is just one of the point to determine the total efficiency. Although TPS563203 has higher Rds_on, but the switching slew rate is much faster than the old generation. This can reduce a lot of switching loss. So the total loss of TPS563203 is lower than old generation.

    Shuai