SCC2691AC1N24 datasheet by NXP Semiconductors

SCC2691AC1N24 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  A good PCB layout is crucial for this device. Ensure a solid ground plane, keep sensitive analog signals away from digital signals, and use a 4-layer board with a dedicated power plane. Refer to NXP's application note AN11529 for more details.
• How do I handle the high current consumption during startup?
  The SCC2691AC1N24 has a high inrush current during startup. To mitigate this, use a soft-start circuit or a current limiter to reduce the inrush current. You can also consider using a larger input capacitor to reduce the voltage droop.
• What is the recommended input capacitor value and type?
  A 10uF to 22uF X7R or X5R ceramic capacitor is recommended for the input. This value provides a good balance between filtering and stability. Avoid using electrolytic capacitors due to their higher ESR and limited lifespan.
• How do I ensure stability and prevent oscillations?
  To ensure stability, follow the recommended component values and PCB layout guidelines. Also, ensure that the output capacitor is properly sized and has a low ESR. You can also add a small resistor (e.g., 1 ohm) in series with the output capacitor to improve stability.
• What is the maximum ambient temperature for reliable operation?
  The SCC2691AC1N24 is rated for operation up to 105°C ambient temperature. However, for reliable operation, it's recommended to keep the ambient temperature below 85°C to ensure a sufficient margin for thermal derating.