NJM2392M - Nisshinbo

NJM2392M Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  A recommended PCB layout for optimal thermal performance would be to use a 2-layer or 4-layer board with a solid ground plane on the bottom layer, and to place thermal vias under the IC to dissipate heat effectively.
• How do I ensure stable operation with a high-ESR capacitor?
  To ensure stable operation with a high-ESR capacitor, it's recommended to add a 1-10nF ceramic capacitor in parallel with the high-ESR capacitor to reduce the overall ESR and improve stability.
• What is the maximum allowed voltage on the EN pin?
  The maximum allowed voltage on the EN pin is 6V, exceeding which may cause damage to the IC. It's recommended to use a voltage divider or a clamp circuit to limit the voltage to within the specified range.
• Can I use the NJM2392M in a high-temperature environment?
  While the NJM2392M is rated for operation up to 85°C, it's recommended to derate the output current and voltage to ensure reliable operation in high-temperature environments. Consult the manufacturer's application notes for guidance.
• How do I troubleshoot oscillations or instability issues?
  To troubleshoot oscillations or instability issues, check the PCB layout for noise coupling, ensure proper decoupling capacitors are used, and verify that the input and output capacitors meet the recommended specifications. Also, check for any voltage drops or brownouts on the input supply.