A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output traces short and away from each other to minimize noise and coupling.
Ensure that the output capacitor is properly sized and placed close to the output pin. Also, add a small ceramic capacitor (e.g., 10nF) between the input and ground to filter out high-frequency noise.
Although the datasheet specifies a maximum input voltage of 5.5V, it's recommended to limit the input voltage to 5V to ensure reliable operation and prevent damage to the device.
While the device is rated for operation up to 125°C, it's essential to consider the thermal design and ensure proper heat dissipation to prevent overheating and reduce the risk of failure.
Use an oscilloscope to monitor the input and output waveforms. Check for signs of oscillation, noise, or voltage drops. Verify that the input voltage and current are within the recommended specifications.