The maximum input voltage that the LT3755EMSE-2#PBF can handle is 40V, but it's recommended to keep it below 36V for reliable operation.
To ensure the stability of the output voltage, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, use a low-ESR capacitor for the input capacitor.
The maximum output current that the LT3755EMSE-2#PBF can provide is 2A, but it's recommended to keep it below 1.5A for reliable operation.
The soft-start feature in the LT3755EMSE-2#PBF can be configured by connecting a capacitor between the SS pin and GND. The value of the capacitor determines the soft-start time, with a larger capacitor resulting in a longer soft-start time.
The EN (enable) pin in the LT3755EMSE-2#PBF is used to enable or disable the regulator. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled.