TPS54218RTET datasheet by Texas Instruments

TPS54218RTET Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS54218RTET?
  The maximum input voltage that can be applied to the TPS54218RTET is 42V, but it's recommended to keep it below 40V for reliable operation.
• How do I ensure the stability of the output voltage?
  To ensure the stability of the output voltage, it's essential to use the recommended output capacitor values and types, and to follow the layout guidelines provided in the datasheet.
• What is the minimum input capacitance required for stable operation?
  The minimum input capacitance required for stable operation is 10uF, but it's recommended to use a higher value (e.g., 22uF) for better performance.
• Can I use the TPS54218RTET in a high-temperature environment?
  The TPS54218RTET is rated for operation up to 125°C, but it's essential to consider the thermal design and ensure that the device is properly cooled to prevent overheating.
• How do I calculate the output voltage ripple?
  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.