ROHM provides a recommended PCB layout in their application note AN1191, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
The input capacitor selection depends on the input voltage, output current, and ripple requirements. ROHM recommends using a low-ESR capacitor with a value between 1uF to 10uF, and a voltage rating of at least 1.5 times the input voltage. Refer to the datasheet and application notes for more detailed guidance.
The maximum output current of the BD63910MUV-E2 is 1.5A, but it's recommended to derate the output current based on the ambient temperature and thermal design. Refer to the datasheet's thermal derating curve to determine the maximum safe output current for your specific application.
To ensure stability, follow the recommended component values and PCB layout guidelines in the datasheet and application notes. Additionally, make sure to decouple the input and output pins with suitable capacitors, and avoid long traces and loops that can cause oscillation.
The typical dropout voltage of the BD63910MUV-E2 is around 0.5V to 1.0V, depending on the output current and input voltage. Refer to the datasheet's dropout voltage vs. output current characteristic curve for more detailed information.
BD63910MUV-E2 datasheet
by ROHM Semiconductor
