The maximum input voltage is 40V, but it's recommended to keep it below 38V to ensure reliable operation and to prevent damage to the internal components.
The LM2592HVS-5.0 is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. Ensure proper thermal design and heat sinking to prevent overheating.
The output voltage ripple can be estimated using the formula: ΔVout = (Iout * Rl) / (fsw * Cout), where Iout is the output current, Rl is the inductor resistance, fsw is the switching frequency, and Cout is the output capacitance.
The minimum input capacitance is 10uF, but it's recommended to use a higher value (e.g., 22uF) to ensure stable operation and to filter out input voltage noise.
It's not recommended to use a ceramic capacitor for Cout, as they can have high equivalent series resistance (ESR) and may cause oscillations. Instead, use a low-ESR capacitor, such as an electrolytic or tantalum capacitor.
LM2592HVS-5.0 datasheet
by Texas Instruments
