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Original question:

TPS709: Why can't connect 'EN' to 'VIN' for TPS709

TPS709: TPS709 limit resistor and power consumption question

Eason Yuan
Intellectual 840 points
Part Number: TPS709

Hi there，

Our customer want to check with flowing question:

1. Is it necessary to increase the current limiting resistor for the TPS709 power supply VDD (VIN)?
2. When the TPS709 is in the shutdown state (Ven < 0.4V), or the output is short-circuited. Does the power consumption still remain 150nA (typical)?

  • 0
    TI__Intellectual 825 points

    Hi Eason,

    1. No. it is not necessary to add current limiting resistor at Vin pin.

    2. Yes. When in shutdown state (Ven < 0.4V), the current consumption is still 150nA(typical) even when the output is short circuited.

    Regards,

    Chito