Bourns provides a recommended PCB layout and land pattern in their application notes. It's essential to follow these guidelines to ensure proper thermal management, minimize parasitic inductance, and optimize performance.
To minimize electromagnetic interference (EMI), keep the inductor at least 5 mm away from sensitive components. You can also use shielding techniques, such as copper pours or EMI shields, to contain the magnetic field.
While the datasheet specifies a maximum voltage rating, it's essential to consider the voltage stress during switching transitions. As a general rule, keep the voltage stress below 1.5 times the maximum rated voltage to ensure reliability.
The SRF is typically not specified in the datasheet. You can estimate the SRF using the inductor's inductance and capacitance values. A higher SRF can lead to reduced efficiency and increased EMI. Consider using an inductor with a higher SRF or adding a capacitor in parallel to mitigate these effects.
The inductor's thermal resistance (Rth) is specified in the datasheet. Ensure good thermal conductivity by using a thermally conductive PCB material, and consider adding a heat sink or thermal interface material to reduce the junction temperature.
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CHV2010-FX-3304ELF Overview
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