The recommended input capacitor value is 0.1uF to 10uF, depending on the specific application and noise requirements.
To ensure stability, make sure to follow the recommended PCB layout guidelines, use a low-ESR output capacitor, and add a 1kΩ to 10kΩ resistor in series with the output capacitor to prevent oscillation.
The MAX809LEUR can handle input voltages up to 30V, but it's recommended to operate within the specified input voltage range of 4.5V to 28V for optimal performance.
The MAX809LEUR is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at higher temperatures to ensure reliable operation.
The output voltage of the MAX809LEUR is determined by the resistor divider network connected to the FB pin. Use the formula: Vout = 1.25V x (R1 + R2) / R2, where R1 and R2 are the resistors in the divider network.
