ROHM provides a recommended PCB layout in the application note AN1911, which includes guidelines for component placement, thermal vias, and copper pouring to ensure optimal performance and thermal management.
The input capacitor selection depends on the input voltage, output voltage, and output current. ROHM recommends using a low-ESR capacitor with a capacitance value between 10uF to 22uF, and a voltage rating of at least 1.5 times the input voltage. Refer to the application note AN1911 for more details.
The maximum ambient temperature for the BD37511FS-E2 is 85°C, but it can be derated to 70°C for long-term reliability. Refer to the datasheet for thermal derating curves and guidelines.
The BD37511FS-E2 is not designed for high-humidity environments. If your application requires operation in humid conditions, consider using a conformal coating or potting the device to protect it from moisture. Consult ROHM's reliability report for more information.
ROHM provides a troubleshooting guide in the application note AN1911, which covers common issues such as output voltage deviation, oscillation, and overheating. Additionally, check the input voltage, output load, and PCB layout to ensure they meet the recommended specifications.
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