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TPS74801: Vbias and Vin ramp up/down sequence

yf liao
Expert 1080 points
Part Number: TPS74801

Hi, is there any requirement on the voltage ramp up/down sequence between Vbias and Vin? 

Is there risk that Vin is always applied, Vbias comes later, then comes the ON signal? (Vin voltage is no larger than Vbias.)

  • 0
    TI__Guru 55940 points

    Hi ,

    Vin, Ven, and Vbias can be sequenced in any order without damaging TPS74801; however, it is important to note that the sequencing order can impact the startup of the LDO.  Please refer to Section 7.5.2 Sequencing Requirements for more information.

    Very Respectfully,

    Ryan