The maximum input voltage that can be applied to the TPS54231DRG4 is 42V, but it's recommended to keep it below 40V for reliable operation.
To ensure the stability of the output voltage, make sure to use a suitable output capacitor with a low ESR (Equivalent Series Resistance) and a sufficient capacitance value, as recommended in the datasheet.
The EN (Enable) pin is used to enable or disable the regulator. Connect it to a logic high (VIN or higher) to enable the regulator, and connect it to a logic low (GND) to disable it.
The output voltage of the TPS54231DRG4 can be calculated using the formula: VOUT = 0.8V x (1 + R1/R2), where R1 and R2 are the resistors connected to the FB (Feedback) pin.
The maximum output current that the TPS54231DRG4 can deliver is 3A, but it's recommended to keep it below 2.5A for reliable operation.