L4976 datasheet by STMicroelectronics

L4976 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the L4976 can handle?
  The L4976 can handle input voltages up to 40V, but it's recommended to keep it below 35V for reliable operation.
• How do I choose the right output capacitor for the L4976?
  Choose an output capacitor with a value between 10uF to 100uF, and a voltage rating of at least 10V. A low ESR (Equivalent Series Resistance) capacitor is recommended for stability.
• What is the minimum input voltage required for the L4976 to regulate properly?
  The L4976 requires a minimum input voltage of 7V to regulate properly, but it's recommended to keep it above 8V for optimal performance.
• Can I use the L4976 in a high-temperature environment?
  The L4976 is rated for operation up to 150°C, but it's recommended to derate the output current and input voltage at high temperatures to ensure reliable operation.
• How do I protect the L4976 from input voltage surges?
  Use a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit to protect the L4976 from input voltage surges and spikes.