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TCAN11625-Q1: VLDO output failure

Daniel Wang (auto)
Expert 3490 points
Part Number: TCAN11625-Q1

Tool/software:

Hello team,

Customer is testing our EVM, found VLDO output issue:

When power off from sleep mode, and then power on immediately, the LDO cannot output 5V. Only wait more than 3.5s and then power on the Vsup, the 5V can be output normally. Can you help check the phenomenon and explain it?

Thanks!

Regards,

Daniel Wang

  • 0
    TI__Guru 74252 points

    Daniel,

    Can the customer verify the voltage at the supply pin, or make sure the voltages on the pin are fully discharged before powering back on? And was state is the device in when powered off? This is not expected behavior for this device, please also share a schematic if possible.

    Regards,

    Eric Hackett