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Original question:

TPS56637: cannot work stably with 24V-in 5V-out at light load

TPS56637: The stability at light load

David Huang
Intellectual 2285 points
Part Number: TPS56637

Hi team

My customer has found the thread below, which mentioned something about TPS56637 being unstable at light load.

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/804136/tps56637-cannot-work-stably-with-24v-in-5v-out-at-light-load

According to the answer made back then the original silicon had this issue but was then resolved by a newer version. Is the current available part safe to be used at light load?(around 50mA)

Regards

  • 0
    TI__Expert 5030 points

    Hi David,

    The silicon mentioned in the thread with "x" top marking is not released silicon sold on market. It's pre-RTM (released to market) silicon.

    The pre-RTM silicon are used as customer samples for some engaged customers to verify basic performance earlier before device mass production. They are not sold on market.

    Customer is not able to buy pre-RTM sample from TI. So don't worry about it.

    TPS56637 is safe to be used at light load.

    Thanks,

    Andrew