LM5574MT datasheet by Texas Instruments

LM5574MT Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LM5574MT can handle?
  The LM5574MT can handle input voltages up to 42V, but it's recommended to keep it below 40V for reliable operation.
• How do I ensure the LM5574MT is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient output capacitor, and add a 10nF capacitor between the VIN and GND pins.
• What is the minimum input voltage required for the LM5574MT to operate?
  The minimum input voltage required for the LM5574MT to operate is 6.5V, but it's recommended to keep it above 7V for reliable startup.
• Can I use the LM5574MT in a high-temperature environment?
  Yes, the LM5574MT is rated for operation up to 150°C, but it's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet.
• How do I calculate the output voltage of the LM5574MT?
  The output voltage of the LM5574MT can be calculated using the formula: VOUT = (R1 / R2) * (VIN - VREF), where R1 and R2 are the resistors in the feedback network, VIN is the input voltage, and VREF is the internal reference voltage (1.21V).