The TPS2812D can handle input voltages up to 18V, but it's recommended to keep it below 15V for optimal performance and reliability.
The output capacitor should be chosen based on the output voltage and current requirements. A general rule of thumb is to use a capacitor with a value between 10uF to 22uF, and a voltage rating of at least 1.5 times the output voltage.
The EN (enable) pin is used to turn the regulator on or off. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled. This pin can be used to implement power sequencing or to turn off the regulator when not in use.
To ensure stability of the output voltage, make sure to use a suitable output capacitor, keep the input voltage within the recommended range, and avoid overloading the regulator. Additionally, ensure that the PCB layout is well-designed and follows good thermal management practices.
The TPS2812D is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and voltage according to the temperature derating curve provided in the datasheet.