TPS54312PWPR datasheet by Texas Instruments

TPS54312PWPR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS54312PWPR?
  The maximum input voltage that can be applied to the TPS54312PWPR is 42V, but it's recommended to keep it below 40V for reliable operation.
• How do I choose the right inductor value for my design?
  The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor selection guide in the datasheet or use TI's WEBENCH Power Designer tool to get a recommended inductor value.
• What is the purpose of the EN pin, and how do I use it?
  The EN (enable) pin is used to turn the converter on and off. It's an active-high input, so connect it to VIN or a logic high signal to enable the converter, and connect it to GND or a logic low signal to disable it.
• How do I adjust the output voltage of the TPS54312PWPR?
  The output voltage can be adjusted by changing the resistor divider network connected to the FB (feedback) pin. Use the formula in the datasheet to calculate the required resistor values for the desired output voltage.
• What is the maximum output current that the TPS54312PWPR can deliver?
  The maximum output current of the TPS54312PWPR is 3A, but it's recommended to derate the output current based on the ambient temperature and the input voltage to ensure reliable operation.