ROHM recommends a thermal pad on the bottom of the package, connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended, and the thermal pad should be connected to a ground plane to reduce thermal resistance.
To ensure stable operation with a high-ESR output capacitor, ROHM recommends adding a 1nF to 10nF ceramic capacitor in parallel with the output capacitor to reduce the overall ESR. Additionally, the output capacitor should be placed close to the IC to minimize parasitic inductance.
The maximum allowed voltage on the EN pin is 6V, which is higher than the recommended operating voltage of 5V. However, it's essential to ensure that the EN pin voltage does not exceed 6V to prevent damage to the IC.
The R6015ENJTL is rated for operation up to 105°C, but ROHM recommends derating the output current and voltage to ensure reliable operation at high temperatures. A thermal design should be implemented to keep the junction temperature below 125°C.
To troubleshoot oscillations or instability issues, ROHM recommends checking the PCB layout for parasitic inductance and capacitance, ensuring that the output capacitor is properly selected and placed, and verifying that the input voltage is within the recommended range. Additionally, a soft-start circuit can be implemented to reduce inrush current and prevent oscillations.
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