STMicroelectronics recommends a 2-layer or 4-layer PCB with a solid ground plane and a thermal relief pattern around the device to ensure optimal thermal performance.
To ensure reliable operation in high-temperature environments, it's essential to follow the recommended thermal design guidelines, use a suitable thermal interface material, and ensure proper airflow around the device.
STMicroelectronics recommends using X7R or X5R ceramic capacitors with a minimum capacitance of 10uF for the input and output capacitors, and ensuring that the capacitors are placed as close as possible to the device pins.
To troubleshoot issues with the overcurrent protection feature, check the input voltage, output current, and sense resistor values. Ensure that the sense resistor is correctly connected and that the output current is within the specified limits.
The recommended startup sequence for the SD57120 is to first apply the input voltage, then the enable signal, and finally the clock signal. This ensures proper device initialization and prevents unwanted behavior.
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