LMD18201T datasheet by Texas Instruments

LMD18201T Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for the LMD18201T?
  The LMD18201T can operate from -40°C to 150°C, but the recommended operating temperature range is -20°C to 125°C for optimal performance.
• How do I choose the right sense resistor value for my application?
  The sense resistor value depends on the maximum current you expect in your application. A good starting point is to use the formula Rsense = 0.5V / Imax, where Imax is the maximum expected current. You can then adjust the value based on your specific requirements.
• What is the purpose of the bootstrap capacitor (CB) in the LMD18201T?
  The bootstrap capacitor (CB) is used to generate the high-side gate drive voltage for the internal MOSFET. It's essential for proper operation and should be chosen based on the switching frequency and output capacitance.
• Can I use the LMD18201T in a synchronous buck converter configuration?
  Yes, the LMD18201T can be used in a synchronous buck converter configuration. However, you'll need to ensure that the high-side and low-side MOSFETs are properly synchronized to avoid shoot-through currents.
• How do I handle overcurrent protection in my design?
  The LMD18201T has a built-in overcurrent protection feature that can be triggered by an external resistor (Roc) connected to the OC pin. You can adjust the Roc value to set the overcurrent threshold based on your application requirements.