The recommended input capacitor value for the MAX823LEUK is 1uF to 10uF, depending on the input voltage and output current requirements. A larger capacitor value can help to reduce input voltage ripple and improve output voltage regulation.
To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient input capacitor, and add a 10nF to 100nF capacitor between the VOUT and GND pins to filter out high-frequency noise. Additionally, ensure that the output capacitor is within the recommended range and has a low ESR.
The MAX823LEUK can handle input voltages up to 28V, but it's recommended to operate within the 4.5V to 24V range for optimal performance and reliability.
The MAX823LEUK is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage to ensure reliable operation at high temperatures. Consult the datasheet for specific derating guidelines.
The output voltage of the MAX823LEUK can be calculated using the formula: VOUT = (R1 / R2) * (1.25V), where R1 and R2 are the resistors connected between the VOUT and ADJ pins. The output voltage can be adjusted between 1.25V and 11V.