A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output traces as short as possible and avoid crossing them over each other.
Ensure the input voltage is within the recommended range (2.7V to 5.5V) and the output voltage is set to the desired level using the feedback resistors. A stable input voltage and proper output voltage setting are crucial for optimal performance.
The maximum output current capability of the ACURN103-HF is 3A. However, it's recommended to derate the output current to 2.5A for reliable operation and to prevent overheating.
Use a voltage supervisor or a reset IC to monitor the input voltage and reset the device if it falls outside the recommended range. Additionally, consider adding overvoltage protection (OVP) and undervoltage protection (UVP) circuits to prevent damage to the device.
The thermal derating curve for the ACURN103-HF is typically 1.5% per degree Celsius above 25°C. This means that for every 1°C increase in temperature above 25°C, the maximum output current capability decreases by 1.5%.
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ACURN103-HF Overview
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