The maximum input voltage that can be applied to the LTC3787EUFD is 36V, but it's recommended to keep it below 30V for reliable operation.
The inductor selection depends on the output current, switching frequency, and output voltage. A good starting point is to use an inductor with a value between 1.5uH to 3.3uH, and a saturation current rating above the maximum output current.
The SYNC pin allows the user to synchronize the switching frequency of the converter with an external clock signal, which can be useful in noise-sensitive applications or when multiple converters need to be synchronized.
The output voltage can be set using the FB pin and a resistive divider network. The FB pin is connected to the output voltage through a resistive divider, and the ratio of the resistors determines the output voltage.
The maximum output current that the LTC3787EUFD can deliver is 7A, but it's recommended to derate the output current based on the ambient temperature and the thermal performance of the PCB.