482R2SC datasheet by Murata Power Solutions

482R2SC Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  Murata recommends a PCB layout with a solid copper plane under the module, and thermal vias to dissipate heat. A minimum of 2oz copper thickness is recommended.
• How do I ensure reliable start-up of the converter?
  Ensure that the input voltage rises monotonically and does not droop during start-up. A soft-start circuit can be added to limit the inrush current.
• What is the maximum allowable capacitance on the output?
  The maximum allowable capacitance on the output is 2200uF. Exceeding this value may cause instability or oscillation.
• Can I use this converter in a high-temperature environment?
  The 482R2SC is rated for operation up to 85°C ambient temperature. However, derating may be necessary for temperatures above 70°C. Consult the datasheet for derating curves.
• How do I troubleshoot output voltage instability or oscillation?
  Check for proper input voltage, output capacitance, and PCB layout. Ensure that the output voltage sense lines are properly connected and not noisy. Consult the application note for troubleshooting guidelines.