LM3544M-L datasheet by Texas Instruments

LM3544M-L Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM3544M-L?
  The maximum input voltage that can be applied to the LM3544M-L is 42V, but it's recommended to keep it below 40V for reliable operation.
• How do I ensure the LM3544M-L is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient output capacitor (at least 10uF), and keep the input capacitor (if used) as close to the VIN pin as possible.
• Can I use the LM3544M-L in a high-temperature environment?
  Yes, the LM3544M-L is rated for operation up to 125°C, but the maximum junction temperature (TJ) should not exceed 150°C. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
• How do I calculate the output voltage of the LM3544M-L?
  The output voltage (VOUT) 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 minimum input voltage required for the LM3544M-L to operate?
  The minimum input voltage required for the LM3544M-L to operate is 2.5V, but it's recommended to keep it above 3V for reliable startup and operation.