The maximum input voltage that can be applied to the VIN pin is 40V, but it's recommended to keep it below 36V for reliable operation.
To optimize inductor selection, consider the inductor's saturation current, DC resistance, and core loss. A good starting point is to choose an inductor with a saturation current at least 1.5 times the peak current, and a DC resistance less than 100mΩ.
The RUN pin is an active-high enable input that allows the user to turn the converter on and off. To use it, simply tie it to VIN or a logic signal to enable the converter, or tie it to GND to disable it.
To configure the LTC3111 for a specific output voltage, use the FB pin and a resistive divider to set the output voltage. The FB pin regulates to 0.8V, so choose resistors that divide the output voltage to 0.8V.
The maximum output current that the LTC3111 can deliver depends on the input voltage and the inductor selection. However, the datasheet specifies a maximum output current of 2A for most operating conditions.
