TPS54973PWP datasheet by Texas Instruments

TPS54973PWP Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS54973PWP?
  The maximum input voltage that can be applied to the TPS54973PWP is 18V, but it's recommended to keep it below 15V for optimal performance and reliability.
• How do I ensure the TPS54973PWP 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 add a small ceramic capacitor (around 10nF) between the VIN and GND pins to filter out noise.
• What is the minimum ESR required for the output capacitor?
  The minimum ESR required for the output capacitor is 10mΩ, but it's recommended to use a capacitor with an ESR of 5mΩ or lower for optimal performance.
• Can I use the TPS54973PWP in a high-temperature environment?
  The TPS54973PWP is rated for operation up to 125°C, but it's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet to ensure reliability.
• How do I calculate the output voltage ripple of the TPS54973PWP?
  The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency.