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TPS717-Q1: 1.8V Fixed Output Feedback Network Resistor Values

Mark Malik
Prodigy 210 points
Part Number: TPS717-Q1

What are the resistor values used in the feedback network for TPS71718-Q1?  Is there any other resistance to ground that should be taken into account when determining decay of the output voltage after shutdown?  Thank you.

  • 0
    TI__Guru 55940 points

    Hi Mark,

    The resistor divider current is 2.5 uA for the fixed output versions of TPS717-Q1.  For the 1.8 V version this gives us a total resistance to ground of 720 k.  This is the only path from OUT to GND internal to the LDO that will help discharge the output capacitance after the LDO is disabled.

    Very Respectfully,

    Ryan