LM98620VHB/NOPB datasheet by Texas Instruments

LM98620VHB/NOPB Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the LM98620?
  A good PCB layout for the LM98620 involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing the input and output capacitors close to the device. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
• How do I ensure the LM98620 is stable and doesn't oscillate?
  To ensure stability, make sure the input and output capacitors are properly selected and placed close to the device. Also, ensure the PCB layout is well-designed, and the device is properly decoupled from the power supply. Additionally, the output voltage should be set to a value that is within the recommended range.
• What is the maximum input voltage that can be applied to the LM98620?
  The maximum input voltage that can be applied to the LM98620 is 42V. Exceeding this voltage may cause damage to the device.
• Can I use the LM98620 in a high-temperature environment?
  The LM98620 is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. It's recommended to derate the device's output current and voltage at high temperatures to ensure reliable operation.
• How do I protect the LM98620 from overcurrent and overheating?
  The LM98620 has built-in overcurrent protection and thermal shutdown. However, it's recommended to add external protection such as fuses or current limiting resistors to prevent damage from excessive current. Additionally, ensure good airflow and a heat sink if necessary to prevent overheating.