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.
ROHM recommends using an output capacitor with an ESR of 10Ω or less to ensure stable operation. Additionally, a 1μF or larger ceramic capacitor in parallel with the output capacitor can help improve stability.
The maximum allowed voltage on the EN pin is 6V, which is the same as the maximum input voltage of the device. Exceeding this voltage may damage the internal circuitry.
The BD3575HFP-TR is rated for operation up to 125°C, but ROHM recommends derating the output current and voltage to ensure reliable operation at high temperatures. Consult the datasheet for specific derating guidelines.
Common causes of oscillation or instability include inadequate output capacitance, high-ESR output capacitors, or poor PCB layout. Check the output capacitor value, ESR, and PCB layout, and ensure that the device is operated within the recommended specifications.
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BD3575HFP-TR Overview
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