TPS5431DDAR datasheet by Texas Instruments

TPS5431DDAR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS5431DDAR?
  The maximum input voltage that can be applied to the TPS5431DDAR is 42V, but it's recommended to keep it below 40V for reliable operation.
• How do I ensure the TPS5431DDAR is stable and doesn't oscillate?
  To ensure stability, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, keep the input and output capacitors close to the device and use a low-ESR capacitor for the output.
• What is the minimum input voltage required for the TPS5431DDAR to operate?
  The minimum input voltage required for the TPS5431DDAR to operate is 6.5V, but it's recommended to keep it above 7V for reliable operation.
• Can I use the TPS5431DDAR in a high-temperature environment?
  Yes, the TPS5431DDAR can operate in high-temperature environments, but the junction temperature should not exceed 150°C. Make sure to follow the thermal design guidelines and use a suitable heat sink if necessary.
• How do I calculate the output voltage of the TPS5431DDAR?
  The output voltage of the TPS5431DDAR can be calculated using the formula: Vout = (R1/R2) * (Vref), where R1 and R2 are the resistors in the feedback network, and Vref is the internal reference voltage (1.221V).