A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the power paths.
Ensure that the output capacitor has a low ESR, and the feedback network is properly compensated. Also, avoid using long, thin traces for the feedback path, and keep the feedback components close to the IC.
The maximum input voltage is 28V, but it's recommended to keep it below 24V for optimal performance and reliability.
Yes, but ensure that the ceramic capacitor has a low ESR and is rated for the output voltage. Also, be aware that ceramic capacitors can have a high voltage coefficient, which may affect the output voltage regulation.
The output voltage ripple can be estimated using the formula: ΔVout = (Iout * ESR) / (f * C), where Iout is the output current, ESR is the output capacitor's equivalent series resistance, f is the switching frequency, and C is the output capacitance.
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MP2489DN-LF-Z Overview
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