78601/2C - Murata Electronics

78601/2C Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Murata recommends a symmetrical PCB layout with a solid ground plane, and to keep the input and output traces as short as possible. A 4-layer PCB with a dedicated power plane and a solid ground plane is also recommended.
• How do I ensure the DC-DC converter's stability and prevent oscillations?
  To ensure stability, ensure that the output capacitor has a low ESR, and the input capacitor has a high capacitance. Also, make sure the PCB layout is symmetrical, and the input and output traces are kept short. Additionally, adding a small ceramic capacitor (e.g., 10nF) between the VIN and GND pins can help prevent oscillations.
• What is the maximum ambient temperature for reliable operation?
  The 78601/2C is rated for operation up to 85°C ambient temperature. However, for reliable operation, it's recommended to keep the ambient temperature below 70°C to ensure the internal junction temperature remains within the specified range.
• Can I use a different inductor value or type than recommended?
  While it's possible to use a different inductor value or type, it's not recommended. Murata has optimized the design for the specified inductor value and type. Using a different inductor may affect the converter's performance, efficiency, and stability.
• How do I troubleshoot issues with the DC-DC converter?
  To troubleshoot issues, start by checking the input voltage, output voltage, and current. Verify that the input and output capacitors are properly connected and meet the recommended specifications. Check for any signs of overheating, and ensure the PCB layout is correct. If issues persist, consult the datasheet and application notes or contact Murata's technical support.