LT1376IS8-5 datasheet by Linear Technology

LT1376IS8-5 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LT1376IS8-5?
  The maximum input voltage that can be applied to the LT1376IS8-5 is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
• How do I ensure the stability of the LT1376IS8-5 in my design?
  To ensure stability, make sure to follow the recommended layout guidelines, use a low-ESR output capacitor, and add a compensation capacitor (Ccomp) between the COMP pin and GND. Also, ensure that the input and output capacitors are properly decoupled.
• What is the minimum ESR required for the output capacitor?
  The minimum ESR required for the output capacitor is 0.1 ohms. Using a capacitor with a lower ESR can cause instability and oscillations.
• Can I use the LT1376IS8-5 in a high-temperature environment?
  The LT1376IS8-5 is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures to ensure reliable operation.
• How do I calculate the output voltage ripple of the LT1376IS8-5?
  The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESR) / (fsw * Cout), where Iout is the output current, ESR is the output capacitor's equivalent series resistance, fsw is the switching frequency, and Cout is the output capacitance.