Description:Switching Voltage Regulators 4.5V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: This is the product guarantees long time support in Industrial market. BD9E304FP4-LBZ is a single synchronous buck DC/DC converter with built-in low on-resistance powe
ROHM recommends a thermal pad size of 2.5mm x 2.5mm with a minimum of 10 thermal vias (0.3mm diameter) to achieve optimal thermal performance. Additionally, a solid copper plane on the bottom layer can help to dissipate heat efficiently.
To ensure stable operation with a high-capacitance output capacitor, ROHM recommends using a capacitor with an ESR (Equivalent Series Resistance) of 10mΩ or less, and placing a 1μF to 10μF ceramic capacitor in parallel with the output capacitor to reduce the risk of oscillation.
The maximum allowed voltage on the EN (Enable) pin is 6V. Exceeding this voltage may cause damage to the device. It's recommended to use a voltage limiter or a resistor divider network to ensure the EN pin voltage remains within the specified range.
The BD9E304FP4-LBZTL is rated for operation up to 105°C. However, ROHM recommends derating the output current and voltage to ensure reliable operation in high-temperature environments. Consult the datasheet for specific derating guidelines.
To troubleshoot oscillation or instability issues, check the PCB layout for proper thermal design, ensure the output capacitor is properly selected and placed, and verify that the input voltage is within the specified range. Additionally, check for any noise or ripple on the input voltage and ensure that the device is not overheating.
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BD9E304FP4-LBZTL Overview
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