TPS77818D datasheet by Texas Instruments

TPS77818D Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS77818D?
  The maximum input voltage that can be applied to the TPS77818D is 18V, but it's recommended to keep it below 15V for reliable operation.
• How do I ensure the TPS77818D is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended layout and component placement guidelines, use a sufficient output capacitor (at least 10uF), and keep the input capacitor (if used) as close to the VIN pin as possible.
• Can I use the TPS77818D in a high-temperature environment?
  Yes, the TPS77818D is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
• How do I calculate the output voltage of the TPS77818D?
  The output voltage (VOUT) is determined by the resistor divider network (R1 and R2) connected to the FB pin. Use the formula: VOUT = 0.8V x (1 + R2/R1) to calculate the output voltage.
• What is the minimum input voltage required for the TPS77818D to operate?
  The minimum input voltage required for the TPS77818D to operate is 2.7V, but it's recommended to keep the input voltage above 3V for reliable startup and operation.