LF25ABDT-TRY datasheet by STMicroelectronics

LF25ABDT-TRY Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  STMicroelectronics provides a recommended PCB layout in the application note AN4566, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
• How do I select the correct output capacitor for the LF25ABDT-TRY?
  The output capacitor selection depends on the output voltage, output current, and desired ripple voltage. A general guideline is to use a low-ESR capacitor with a value between 10uF to 22uF. Refer to the application note AN4566 for more detailed guidance.
• What is the maximum ambient temperature for reliable operation?
  The LF25ABDT-TRY is rated for operation up to 125°C ambient temperature, but it's recommended to derate the output current and voltage to ensure reliable operation above 85°C ambient temperature.
• How do I implement overcurrent protection with the LF25ABDT-TRY?
  The LF25ABDT-TRY has a built-in overcurrent protection feature that can be enabled by connecting a resistor between the OCP pin and the GND pin. The value of the resistor determines the overcurrent threshold. Refer to the datasheet for more information.
• What is the recommended input capacitor value and type for the LF25ABDT-TRY?
  A ceramic capacitor with a value between 1uF to 10uF is recommended for the input capacitor. The capacitor should be placed close to the VIN pin and have a low ESR to minimize noise and ensure stable operation.