A good PCB layout is crucial for the PTN3310D,118. Ensure a solid ground plane, keep the input and output tracks short and wide, and use a common mode choke to reduce EMI. Refer to NXP's application note AN11529 for more details.
Choose X7R or X5R ceramic capacitors with a voltage rating of at least 2x the input voltage. For the input capacitor, a value between 1uF to 10uF is recommended. For the output capacitor, a value between 10uF to 22uF is recommended. Ensure the capacitors are placed close to the IC.
Although the datasheet specifies a maximum input voltage of 18V, it's recommended to limit the input voltage to 15V to ensure reliable operation and prevent damage to the IC.
Ensure good airflow around the IC, and use a heat sink if necessary. Avoid operating the IC in high-temperature environments (>85°C) for extended periods. Monitor the IC's temperature using the thermal pad or an external temperature sensor.
For optimal efficiency, operate the PTN3310D,118 with an input voltage between 7V to 12V. This range allows for the best balance between efficiency and output voltage regulation.
PTN3310D,118 datasheet
by NXP Semiconductors
