The recommended PCB layout for the MAX5406EUM+ is to keep the input and output traces as short as possible, and to use a solid ground plane to reduce noise and EMI. Additionally, it's recommended to place a 10uF capacitor between the VIN pin and GND, and a 1uF capacitor between the VOUT pin and GND.
To ensure the MAX5406EUM+ is stable and doesn't oscillate, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the input voltage is within the recommended range, and that the output capacitor is of sufficient value and type (e.g. X5R or X7R ceramic capacitor).
The MAX5406EUM+ is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as the temperature increases. Additionally, ensure that the PCB and surrounding components are also rated for high-temperature operation.
The output voltage of the MAX5406EUM+ can be calculated using the formula: VOUT = (R1 / R2) * (VIN - VREF), where R1 and R2 are the resistors connected to the FB pin, VIN is the input voltage, and VREF is the internal reference voltage (1.25V).
The maximum input voltage that can be applied to the MAX5406EUM+ is 5.5V, but it's recommended to keep the input voltage below 5V to ensure reliable operation and to prevent damage to the device.
MAX5406EUM+ datasheet
by Maxim Integrated Products
