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About power supply timing of TPS51363

Satoshi
Guru 19565 points
Other Parts Discussed in Thread: TPS51363

Please let me know about input timing of TPS51363 below.

・Is there sequence timing of  V5 and VIN?

　Or, is timing does not matter?

・If V5 and VIN supply slower than EN input, is it have any problem? 

Best regards,

Satoshi

  • 0
    TI__Intellectual 1820 points
    Hi,

    No timing requirment for V5 and VIN, but these two should be ready before EN asserted
    If V5 slower than EN, IC may have problem to determine the target output voltage, since V5 is used to generate internal VREF.
    If VIN slower than EN, basically no problem. But if VIN is too low to generate enough Vout, UVP may be mis-triggered.

    regards
    Mike