BU9873F-GTE2 - ROHM Semiconductor

BU9873F-GTE2 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  A 4-layer PCB with a solid ground plane and thermal vias is recommended. Ensure a minimum of 1mm clearance around the package for airflow.
• How do I ensure stable operation with a high-capacitance load?
  Use a 10uF or larger output capacitor with a low ESR (Equivalent Series Resistance) to ensure stability. Additionally, consider adding a 1uF ceramic capacitor in parallel to the output capacitor.
• What is the maximum allowed voltage on the EN pin?
  The maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the device.
• Can I use the BU9873F-GTE2 in a high-temperature environment?
  The device is rated for operation up to 105°C. However, ensure proper thermal design and consider derating the output current at high temperatures to prevent overheating.
• How do I troubleshoot output voltage instability or oscillations?
  Check the PCB layout for noise coupling, ensure proper decoupling capacitors, and verify the output capacitor selection. Also, check for any voltage drops on the input or output lines.