SI3483CDV-T1-E3 datasheet by Vishay Siliconix

SI3483CDV-T1-E3 Frequently Asked Questions (FAQs)

• What is the recommended PCB footprint for the SI3483CDV-T1-E3?
  The recommended PCB footprint for the SI3483CDV-T1-E3 is a 5-pin SOT23 package with a 1.5mm x 1.5mm body size. A minimum pad size of 0.5mm x 0.5mm is recommended for each pin.
• How do I ensure the SI3483CDV-T1-E3 is properly biased for optimal performance?
  To ensure proper biasing, connect the input pin (VIN) to a stable voltage source between 2.5V and 5.5V, and the enable pin (EN) to a logic-level signal (0V or VIN). The output pin (VOUT) should be decoupled with a 1uF ceramic capacitor.
• What is the maximum output current capability of the SI3483CDV-T1-E3?
  The SI3483CDV-T1-E3 is capable of delivering up to 1A of output current. However, it's recommended to limit the output current to 500mA for optimal performance and to prevent overheating.
• How do I protect the SI3483CDV-T1-E3 from overvoltage and undervoltage conditions?
  To protect the SI3483CDV-T1-E3 from overvoltage and undervoltage conditions, add a voltage supervisor or a reset IC to monitor the input voltage and reset the device if it falls outside the recommended operating range (2.5V to 5.5V).
• What is the thermal derating curve for the SI3483CDV-T1-E3?
  The thermal derating curve for the SI3483CDV-T1-E3 is typically 1.5% per degree Celsius above 25°C. This means that for every 1°C increase in temperature above 25°C, the maximum output current capability decreases by 1.5%.