LTC3786 - IC SWITCHING CONTROLLER, 900 kHz SWITCHING FREQ-MAX, PQCC16, 3 X 3 MM, LEAD FREE, PLASTIC, MO-220WEED-2,QFN-16, Switching Regulator or Controller
The maximum input voltage that can be applied to the LTC3786EUD 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 is used to synchronize the switching frequency of multiple LTC3786EUD devices in a system, ensuring that they operate at the same frequency and reducing electromagnetic interference (EMI).
The output voltage is set by the resistive divider network connected to the FB pin. The ratio of the resistors determines the output voltage, and the datasheet provides a formula to calculate the required resistor values.
The maximum output current that the LTC3786EUD can deliver is 2A, but it's limited by the thermal performance of the package and the PCB design. It's recommended to derate the output current based on the ambient temperature and the thermal design.