The recommended input capacitor value for the MAX634CPA 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 output capacitor value (at least 1uF), and keep the input and output capacitors close to the device. Additionally, avoid using long traces and minimize the distance between the input and output pins.
The MAX634CPA can handle input voltages up to 18V, but it's recommended to operate within the specified input voltage range of 4.5V to 16V for optimal performance and reliability.
The MAX634CPA is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as the temperature increases to ensure reliable operation. Consult the datasheet for specific derating guidelines.
The output voltage of the MAX634CPA is adjustable using an external resistor divider network. The output voltage can be calculated using the formula: Vout = (R1 / R2) * (Vref - Vadj), where R1 and R2 are the resistors in the divider network, Vref is the internal reference voltage (2.5V), and Vadj is the adjust pin voltage (typically 0V).
MAX634CPA datasheet
by Maxim Integrated Products
