The LT8705IFE can handle input voltages up to 80V, but it's recommended to keep it below 60V for optimal performance and reliability.
To minimize EMI, keep the input and output capacitors close to the IC, use a solid ground plane, and keep the high-current paths short and direct. Also, consider using a shielded inductor and orienting the IC to minimize radiation.
The recommended PCB layout for the LT8705IFE is a 4-layer board with a solid ground plane on the bottom layer, and the power planes (VIN, VOUT) on the inner layers. Keep the high-current paths short and direct, and use a thermal relief pattern for the thermal pad.
Select an inductor with a high saturation current rating, low DCR, and a suitable inductance value (e.g., 1-10uH). Consider the inductor's physical size, core material, and operating frequency when making your selection.
The LT8705IFE can deliver up to 5A of output current, but this depends on the input voltage, output voltage, and thermal conditions. Be sure to check the datasheet for specific current ratings and thermal derating curves.
