A good PCB layout practice is to keep the analog and digital grounds separate, use a solid ground plane, and keep the power traces away from the analog signals. Additionally, use a common-mode choke or ferrite bead to filter the input power lines.
Make sure to follow the power-up sequence specified in the datasheet, and ensure that the EN pin is properly driven high to enable the device. Also, configure the device registers according to the datasheet and application notes.
The maximum current that the MAX14783EESA+T can deliver is 1A per channel. To calculate the output current capability, refer to the datasheet's electrical characteristics table and consider the output voltage, input voltage, and internal resistance of the device.
Use an oscilloscope to monitor the input and output voltages, as well as the EN and PG pins. Check for proper power-up sequencing, and verify that the device is properly configured. Also, check for any thermal issues or overheating.
The MAX14783EESA+T is rated for operation up to 125°C. Ensure proper thermal design, including a heat sink if necessary, and follow the thermal management guidelines in the datasheet and application notes.
