The L7815CV can handle input voltages up to 35V, but it's recommended to keep it below 25V for reliable operation.
To ensure stability, use a minimum output capacitance of 10uF, and keep the input and output capacitors close to the regulator. Also, use a low-ESR capacitor for the output capacitor.
The L7815CV requires a minimum input voltage of 17.5V to regulate properly and provide a stable 15V output.
The L7815CV is rated for operation up to 125°C, but its performance may degrade at high temperatures. Consider using a heat sink or a thermally-enhanced package for high-temperature applications.
Use a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit at the input to protect the L7815CV from voltage surges or spikes.