A good PCB layout is crucial for the UBA2211CT/N1,518. Ensure a solid ground plane, keep the input and output traces short and separate, and use a common-mode choke to reduce EMI. Refer to NXP's application note AN11529 for more details.
Select capacitors with low ESR and high ripple current ratings. For input capacitors, use X7R or X5R dielectrics with a voltage rating of at least 2x the input voltage. For output capacitors, use X7R or X5R dielectrics with a voltage rating of at least 1.5x the output voltage.
The UBA2211CT/N1,518 is rated for operation up to 125°C ambient temperature. However, for reliable operation, it's recommended to keep the ambient temperature below 100°C to ensure a junction temperature below 150°C.
To ensure EMC compliance, follow NXP's guidelines for PCB layout, component selection, and shielding. Use a metal shield around the converter, and ensure the input and output cables are properly filtered and shielded.
The recommended input voltage range for the UBA2211CT/N1,518 is 4.5V to 18V. Operating outside this range may affect performance, efficiency, and reliability.
UBA2211CT/N1,518 datasheet
by NXP Semiconductors
