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 4-layer PCB with a solid ground plane is also recommended to reduce thermal resistance.
To ensure stable operation with a high-ESR output capacitor, add a 1-10nF ceramic capacitor in parallel with the output capacitor to reduce the overall ESR. Additionally, consider using a low-ESR output capacitor or a capacitor with a built-in ESR reduction feature.
The maximum allowed voltage on the EN pin is 6V, which is the same as the maximum rating for the VCC pin. Applying a voltage higher than 6V may damage the device.
The BD6225FP-E2 is rated for operation up to 105°C, but the device's performance and reliability may degrade at high temperatures. Consider using a heat sink or a thermal management system to keep the device temperature below 90°C for optimal performance and reliability.
To troubleshoot oscillations or instability issues, check the PCB layout for noise coupling, ensure proper decoupling of the input and output capacitors, and verify that the output capacitor meets the recommended specifications. Also, check for any voltage drops or noise on the VCC and EN pins.
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BD6225FP-E2 Overview
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