PSK-30D-5 - CUI Inc.

PSK-30D-5 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and thermal management for optimal performance?
  CUI recommends a PCB layout with a solid ground plane and a thermal pad connected to a heat sink or a thermal via to ensure efficient heat dissipation. A minimum of 2oz copper thickness is recommended for the PCB.
• How do I ensure the DC-DC converter's reliability in high-temperature environments?
  To ensure reliability, CUI recommends derating the output power by 2.5% per degree Celsius above 50°C. Additionally, ensure proper airflow, and consider using a heat sink or thermal management system to keep the converter within its operating temperature range.
• What is the maximum capacitance I can use on the output of the PSK-30D-5?
  CUI recommends a maximum output capacitance of 220uF to prevent oscillation and ensure stability. Exceeding this value may lead to instability or reduced performance.
• Can I use the PSK-30D-5 in a redundant or parallel configuration?
  Yes, the PSK-30D-5 can be used in a redundant or parallel configuration, but it's essential to ensure proper synchronization and ORing diode implementation to prevent back-feeding and ensure reliable operation.
• What is the typical efficiency of the PSK-30D-5, and how does it vary with load?
  The typical efficiency of the PSK-30D-5 is around 85-90% at full load. Efficiency may vary with load, with a minimum efficiency of around 80% at 20% load. Consult the datasheet or contact CUI for more detailed efficiency curves.