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TPS84A20 input voltage quality

Alber, Moon
Intellectual 720 points
Other Parts Discussed in Thread: TPS84A20

Hello,
I'm Alber as a FAE in Arrow Korea.
My customer will use the TPS84A20 to supply FPGA and other digital Core voltage.
V_in is 5.6V and V_out is 3.3 or 1.0V.
They are considering the input voltage quality.
There's no explanation about the stablity of input voltage, such as a input ripple.
is there any specification of input supply voltage to guarantee the output voltage spec?

  • 0
    TI__Mastermind 28020 points

    The specification for input voltage is the minimum PVin must be 2.95V or (Vout + 0.7V), whichever is greater. Vin minimum is 4.5V.

    As long as the input voltage meets these requirements, the output voltage will meet the total output varition spec.