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TPS22964C: Question about the minimum recommended operating voltage

Darren (FAE)
Expert 5483 points
Part Number: TPS22964C

The TPS22964C datasheet states:

The device contains a low RDSON N-Channel MOSFET that can operate over an input voltage range of 1 V to 5.5 V and switch currents of up to 3 A.

I want to know if the device can operate off a 1[V] supply.
Usually there will be some ripple/accuracy causing supply voltage to drop below 1[V] slightly.

1) What is the minimum supply voltage the device could function at...? (Is there a margin of 10mV or 100mV, etc?
2) Is this "1V" minimum decided by an UVLO feature in the device?

I need to know how much design margin there is to the "1V" statement...

Thanks!

Regards,
Darren

  • 0
    TI__Mastermind 32650 points

    Hi Darren,

    1. The minimum recommended supply voltage is 1V. There is no margin here as this is the minimum voltage at which we have specified and characterized the device.

    2. There is no integrated UVLO but operation under 1V can and will result in non ideal behavior such as shutoff, high R_on, incomplete turn on or no response to inputs. We recommend keeping the voltage always at 1V or above.

    Thanks,

    Shreyas