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The maximum input voltage that can be applied to the LTM4601 is 28V, but it's recommended to operate within 18V to ensure reliable operation.
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To minimize EMI, it's recommended to keep the input and output capacitors close to the IC, use a solid ground plane, and keep the high-current paths short and wide. Additionally, use a shielded inductor and orient it to minimize radiation.
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The recommended PCB layout for the LTM4601 involves placing the input capacitors close to the VIN pin, the output capacitors close to the VOUT pin, and the inductor close to the SW pin. Keep the high-current paths short and wide, and use a solid ground plane.
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To select the right inductor for the LTM4601, consider the maximum current rating, inductance value, and core material. A good starting point is to choose an inductor with a saturation current rating above the peak current, and an inductance value between 1uH to 10uH.
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The thermal derating curve for the LTM4601 is not explicitly provided in the datasheet, but it can be estimated based on the junction-to-case thermal resistance (RθJC) and the maximum junction temperature (TJ). Consult the datasheet for more information.
