TPS54040ADRCR datasheet by Texas Instruments

TPS54040ADRCR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS54040ADRCR?
  The maximum input voltage that can be applied to the TPS54040ADRCR 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 a suitable output capacitor with a low equivalent series resistance (ESR) and a sufficient capacitance value. A minimum capacitance of 10uF is recommended.
• What is the maximum output current that the TPS54040ADRCR can deliver?
  The maximum output current that the TPS54040ADRCR can deliver is 4A, but it's recommended to keep it below 3.5A for reliable operation and to prevent overheating.
• How do I adjust the output voltage of the TPS54040ADRCR?
  The output voltage of the TPS54040ADRCR can be adjusted by using a resistor divider network between the output and the feedback pin. The output voltage can be calculated using the formula: Vout = 0.8V x (R1 + R2) / R2.
• What is the purpose of the enable pin (EN) on the TPS54040ADRCR?
  The enable pin (EN) on the TPS54040ADRCR is used to turn the device on or off. When the EN pin is pulled high, the device is enabled, and when it's pulled low, the device is disabled.