TPS54314PWP datasheet by Texas Instruments

TPS54314PWP Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS54314PWP?
  The maximum input voltage that can be applied to the TPS54314PWP 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 an online inductor selection tool. Typically, a 10uH to 22uH inductor is suitable for most applications.
• 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, meaning it needs to be pulled high (above 2.5V) to enable the converter. When EN is low (below 0.8V), the converter is disabled, and the output voltage is disconnected from the input voltage.
• How do I set the output voltage of the TPS54314PWP?
  The output voltage is set using the feedback resistors (RFBT and RFB) connected to the FB pin. The ratio of these resistors determines the output voltage. Use the formula in the datasheet to calculate the resistor values for your desired output voltage.
• What is the maximum output current that the TPS54314PWP can deliver?
  The maximum output current of the TPS54314PWP is 3A, but it's recommended to derate the output current based on the ambient temperature and the input voltage to ensure reliable operation.