BD8374HFP-MTR footprint, schematic symbol and 3D model by ROHM Semiconductor

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BD8374HFP-MTR Details

A 4-layer PCB with a thermal relief pattern on the bottom layer and a solid ground plane on the top layer is recommended. This helps to dissipate heat efficiently and reduce thermal resistance.
To ensure stable operation with a high-ESR output capacitor, add a 1-2nF ceramic capacitor in parallel with the output capacitor to reduce the effective ESR. Additionally, ensure the output capacitor is placed close to the IC and the PCB layout is optimized for low impedance.
The maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the internal circuitry. It is recommended to use a voltage divider or a level shifter if the control signal is higher than 6V.
The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where Iout is the output current, ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency.
A low-ESR ceramic capacitor with a value of 4.7uF to 10uF is recommended for the input capacitor. This helps to reduce input voltage ripple and ensure stable operation.

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