LT3973EDD-3.3#PBF datasheet by Linear Technology

LT3973EDD-3.3#PBF Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LT3973EDD-3.3#PBF can handle?
  The maximum input voltage for the LT3973EDD-3.3#PBF is 15V, but it's recommended to keep it below 12V for optimal performance and reliability.
• Can I use the LT3973EDD-3.3#PBF in a high-temperature environment?
  The LT3973EDD-3.3#PBF is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at high temperatures to ensure reliability.
• How do I layout the PCB to minimize noise and ensure optimal performance?
  Follow the recommended PCB layout guidelines in the datasheet, including keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths.
• Can I use the LT3973EDD-3.3#PBF in a battery-powered device?
  Yes, the LT3973EDD-3.3#PBF is suitable for battery-powered devices due to its low quiescent current (IQ) of 20μA and high efficiency (up to 95%).
• How do I select the correct output capacitor for the LT3973EDD-3.3#PBF?
  Choose an output capacitor with a low ESR (Equivalent Series Resistance) and a capacitance value between 10μF and 100μF. A ceramic capacitor with an X5R or X7R dielectric is recommended.