ROHM recommends a thermal layout that includes a thermal pad connected to a large copper area on the PCB, with multiple vias to dissipate heat effectively. A detailed layout guide can be found in the application note AN091: Thermal Design Guide for ROHM Semiconductor Products.
The output capacitor selection depends on the output voltage, output current, and ripple voltage requirements. ROHM recommends using a low-ESR capacitor with a capacitance value between 10uF to 22uF. A detailed capacitor selection guide can be found in the application note AN092: Output Capacitor Selection Guide.
ROHM recommends using a ceramic capacitor with a capacitance of 10uF to 22uF, with an X7R or X5R dielectric, and a voltage rating of 10V to 25V. The input capacitor should be placed as close as possible to the VIN pin.
ROHM recommends a soft-start power-up sequence, where the input voltage is ramped up slowly to prevent inrush currents. During power-down, the input voltage should be ramped down slowly to prevent voltage overshoots. A power-up/power-down timing diagram can be found in the datasheet.
The maximum allowed voltage on the EN pin is 6V. Applying a voltage higher than 6V may damage the device. It is recommended to use a voltage divider or a level shifter to ensure the EN pin voltage remains within the specified range.
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