L6563ATR datasheet by STMicroelectronics

L6563ATR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L6563ATR can handle?
  The L6563ATR can handle a maximum input voltage of 30V, but it's recommended to keep it below 28V for reliable operation.
• How do I choose the right inductor value for my application?
  The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor selection guide in the datasheet or consult with an application note from STMicroelectronics.
• What is the purpose of the bootstrap capacitor (CBOOT) and how do I choose its value?
  The bootstrap capacitor (CBOOT) is used to generate the high-side gate drive voltage. The recommended value is 10nF to 22nF, but it may need to be adjusted based on the specific application and layout.
• How do I ensure the L6563ATR is stable and doesn't oscillate?
  To ensure stability, follow the layout guidelines in the datasheet, use a low-ESR output capacitor, and add a small ceramic capacitor (e.g., 10nF) between the VCC and GND pins. Also, make sure the input voltage is well-regulated and the output voltage is properly filtered.
• Can I use the L6563ATR in a synchronous rectification configuration?
  Yes, the L6563ATR can be used in a synchronous rectification configuration, but it requires additional external components and careful design to ensure proper operation.