LM5574MTX/NOPB datasheet by Texas Instruments

LM5574MTX/NOPB Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LM5574MTX/NOPB can handle?
  The LM5574MTX/NOPB can handle a maximum input voltage of 42V, but it's recommended to operate it within the specified input voltage range of 6.5V to 36V for optimal performance.
• How do I ensure the stability of the output voltage in the LM5574MTX/NOPB?
  To ensure the stability of the output voltage, it's essential to use the recommended output capacitor value and type, and to follow the layout guidelines provided in the datasheet. Additionally, the input capacitor should be placed close to the VIN pin to minimize noise and ensure stability.
• What is the maximum output current that the LM5574MTX/NOPB can provide?
  The LM5574MTX/NOPB can provide a maximum output current of 500mA. However, the actual output current may be limited by the input voltage, output voltage, and thermal considerations.
• How do I calculate the output voltage of the LM5574MTX/NOPB?
  The output voltage of the LM5574MTX/NOPB can be calculated using the formula: VOUT = 0.8V x (1 + R1/R2), where R1 and R2 are the resistors connected to the FB pin. The output voltage range is 0.8V to 15V.
• What is the purpose of the EN pin in the LM5574MTX/NOPB?
  The EN (Enable) pin is used to enable or disable the regulator. When the EN pin is pulled high, the regulator is enabled, and when it's pulled low, the regulator is disabled. This pin can be used to implement power sequencing or to turn off the regulator when not in use.