LTC3642EDD-3.3#TRPBF datasheet by Linear Technology

LTC3642EDD-3.3#TRPBF Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LTC3642EDD-3.3?
  The maximum input voltage that can be applied to the LTC3642EDD-3.3 is 15V, but it's recommended to keep it below 12V for optimal performance and reliability.
• How do I ensure the LTC3642EDD-3.3 is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended layout and component placement guidelines, use a low-ESR output capacitor, and add a small ceramic capacitor (e.g., 10nF) between the VOUT and GND pins.
• What is the minimum input voltage required for the LTC3642EDD-3.3 to operate?
  The minimum input voltage required for the LTC3642EDD-3.3 to operate is 3.5V, but it's recommended to keep it above 4V for optimal performance and to ensure the output voltage remains within regulation.
• Can I use the LTC3642EDD-3.3 in a high-temperature environment?
  The LTC3642EDD-3.3 is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as temperature increases to ensure reliability and prevent thermal shutdown.
• How do I calculate the output voltage ripple of the LTC3642EDD-3.3?
  The output voltage ripple of the LTC3642EDD-3.3 can be calculated using the formula: ΔVOUT = (IOUT * ESL) / (COUT * fSW), where ESL is the equivalent series inductance of the output capacitor, COUT is the output capacitance, and fSW is the switching frequency.