L6562D datasheet by STMicroelectronics

L6562D Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L6562D can handle?
  The L6562D can handle input voltages up to 30V, but it's recommended to keep it below 25V 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.
• 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. Choose a capacitor with a value between 10nF to 100nF, depending on the switching frequency and output current.
• How do I ensure the L6562D is stable and doesn't oscillate?
  To ensure stability, make sure to follow the layout guidelines, use a low-ESR output capacitor, and add a small ceramic capacitor (e.g., 10nF) between the VCC and GND pins.
• What is the maximum output current that the L6562D can deliver?
  The L6562D can deliver up to 3A of output current, but this depends on the input voltage, output voltage, and thermal considerations.