SN74LVC2G14: what is the pick current capability of this buffer

Hi Shengnan,

I would not recommend using this device to drive a MOSFET gate. I would instead recommend looking through our line of gate drivers: https://www.ti.com/power-management/gate-drivers/overview.html 

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For the SN74LVC2G14, the maximum DC output current is 50 mA per channel. This current can briefly be exceeded when driving an appropriate capacitive load.

The maximum capacitive loading is 50 pF. You can exceed this slightly, but I would not recommend driving a load larger than 75 pF (150% of the max capacitive load). Beyond this reliability can be reduced.

Beyond 75 pF, a series resistor can be added to limit current to 50 mA. For example, in a 5V system with a 250 pF capacitive load (similar to a GaN FET input), I would add a 100 ohm resistor in series to keep peak current below 50mA.