LT3478EFE#TRPBF datasheet by Linear Technology

LT3478EFE#TRPBF Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LT3478EFE?
  The maximum input voltage that can be applied to the LT3478EFE is 15V, but it's recommended to keep it below 14V for reliable operation.
• How do I ensure the stability of the output voltage in the LT3478EFE?
  To ensure the stability of the output voltage, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, ensure that the input voltage is within the recommended range and the output current is within the specified limits.
• Can I use the LT3478EFE in a high-temperature environment?
  The LT3478EFE is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as the temperature increases to ensure reliable operation.
• How do I calculate the power dissipation of the LT3478EFE?
  The power dissipation of the LT3478EFE can be calculated using the formula: Pd = (Vin - Vout) x Iout + (Vin x Iq), where Vin is the input voltage, Vout is the output voltage, Iout is the output current, and Iq is the quiescent current.
• What is the recommended PCB layout for the LT3478EFE?
  The recommended PCB layout for the LT3478EFE includes keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces to reduce noise and EMI.