• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 64 subscribers
  • Views 86 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.

LM51501-Q1: LM51501-Q1

Raymond McIntyre
Prodigy 80 points
Part Number: LM51501-Q1

Figure 9-1 on the datasheet, references using the Status output to connect Vsupply to Vload through a FET.  In an earlier note on the datasheet it is stated that 5V must be present on Vout to activate the part.  Vload and Vout are connected. Does the status output pull low before 5V is applied to Vout?  If not, it seems that this circuit will not work, as the FET will never turn on, since the FET is needed to turn on to apply 5V to Vout and turn on the device.

  • 0
    TI__Genius 11405 points

    Hi Raymond,

    The bypass swith is not for startup purpose. It is used to reduce conduction loss when LM51501 is in bypass mode.

    Best Regards,

    Feng Ji 

  • 0 in reply to Feng Ji
    TI__Mastermind 42251 points

    Hi Raymond,

    I have not seen an update for the last 21 days, so I assume the questions are/or answered and the issue is solved.
    I close this thread now. If there is still something open reply and the thread will get open again.
    If you have any other question or of the thread gets locked, please open a new one.

    Clicking the Resolved Button also helps us to maintain this forum.

    Best regards,
    Stefan