FMMT455TA datasheet by Diodes Incorporated

FMMT455TA Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the FMMT455TA?
  A good PCB layout for the FMMT455TA involves keeping the input and output traces separate, using a ground plane, and minimizing the length of the input and output traces. A 4-layer PCB with a dedicated ground plane is recommended.
• How do I ensure the FMMT455TA is properly biased for optimal performance?
  To ensure proper biasing, connect the enable pin (EN) to a logic high (VCC) to enable the device. The input voltage (VIN) should be within the recommended range of 2.7V to 5.5V. The output voltage (VOUT) should be decoupled with a 1uF capacitor to ensure stability.
• What is the maximum current the FMMT455TA can handle?
  The FMMT455TA can handle a maximum output current of 1A. However, it's recommended to limit the output current to 500mA for optimal performance and to prevent overheating.
• How do I protect the FMMT455TA from overvoltage and undervoltage conditions?
  To protect the FMMT455TA from overvoltage and undervoltage conditions, use a voltage supervisor or a reset IC to monitor the input voltage and reset the device if it falls outside the recommended range.
• What is the thermal resistance of the FMMT455TA and how do I handle thermal management?
  The thermal resistance of the FMMT455TA is 125°C/W. To handle thermal management, ensure good airflow around the device, use a heat sink if necessary, and avoid blocking the airflow around the device.