• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 161 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.

LM5170-Q1: Can LM5170 support 5V to 60V boost with 15W?

Jimmy Zhou95
Intellectual 870 points
Part Number: LM5170-Q1
Other Parts Discussed in Thread: LM5170, LM5156

Hi team, 

Can LM5170 support 5V to 60V boost with 15W?

Jimmy

  • 0
    TI__Guru 68495 points

    Hi Jimmy,

    The answer is yes if your switching frequency is less than 300kHz.  The available max duty cycle is (1 - 250ns x Fsw).  However,  it appears to be an expensive solution for just 15W.  

    Instead, could you consider the LM5156 operating in DCM such that it can support without hitting the max duty cycle?  Which sounds like a much better cost effective solution. 

    Thanks,

    Youhao Xi, Applications Engineering

  • 0 in reply to Youhao Xi
    TI__Guru 68495 points

    Hi Jimmy,

    May I assume the issue is resolved so I can close the thread?  You are welcome to re-open it by adding a new post.

    Thanks,

    Youhao