The maximum input voltage that can be applied to the LM2575HVT-15 is 60V, but it's recommended to keep it below 50V for reliable operation.
The LM2575HVT-15 is rated for operation up to 150°C, but it's recommended to derate the output current and input voltage to ensure reliable operation at high temperatures.
To ensure stability, make sure to use the recommended output capacitor value and type, and keep the input and output capacitors close to the IC. Also, avoid using long leads or traces that can cause oscillations.
The LM2575HVT-15 is rated for up to 3A output current, but it's recommended to keep the output current below 2A for reliable operation. Exceeding the maximum current rating can cause overheating and reduce the IC's lifespan.
Use a TVS diode or a transient voltage suppressor at the input to protect the IC from voltage surges or spikes. You can also add a fuse or a current limiter to prevent overcurrent conditions.