The maximum input voltage that can be applied to the LT3973EMSE is 60V, but it's recommended to operate within the specified input voltage range of 7V to 40V for optimal performance and reliability.
To ensure the stability of the output voltage, it's essential to follow the recommended layout and component selection guidelines, including the use of a suitable output capacitor, input capacitor, and feedback resistors. Additionally, the output voltage should be decoupled with a capacitor to prevent oscillations.
The maximum output current that the LT3973EMSE can deliver is 3A, but it's limited by the thermal performance of the package and the PCB. The actual output current should be derated based on the ambient temperature and the thermal resistance of the system.
The output voltage of the LT3973EMSE can be programmed using an external resistor divider network connected to the FB pin. The output voltage is determined by the ratio of the resistors and the internal reference voltage of 0.8V.
The EN (enable) pin is used to turn the regulator on or off. When the EN pin is pulled high, the regulator is enabled, and when it's pulled low, the regulator is disabled. This pin can be used to implement power sequencing or to reduce power consumption in standby mode.
LT3973EMSE#TRPBF datasheet
by Linear Technology
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