A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the signal traces short and away from the power plane to minimize noise and EMI.
Use a heat sink with a thermal conductivity of at least 1 W/m-K and ensure good airflow around the device. Also, consider derating the device's power rating according to the temperature derating curve in the datasheet.
A 10-22 μF X7R or X5R ceramic capacitor is recommended for input filtering. The capacitor should be placed as close to the device's input pins as possible to minimize noise and ripple.
Check the input voltage, output load, and feedback resistors for correct values and connections. Verify that the output capacitor is properly sized and placed. Use an oscilloscope to measure the output voltage ripple and noise.
The maximum allowed output current is 1.2 A, but it's recommended to derate the current to 1 A for reliable long-term operation and to prevent overheating.
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