The maximum input voltage that the LTC3604 can handle is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent damage to the internal components.
To optimize the layout of the LTC3604, keep the input and output capacitors close to the IC, use a solid ground plane, and minimize the length of the traces between the IC and the capacitors. Also, keep the switching node (SW pin) away from sensitive analog nodes.
The recommended output capacitor value for the LTC3604 is 10uF to 22uF, and it's recommended to use a low-ESR ceramic capacitor (e.g. X5R or X7R) to minimize output voltage ripple and ensure stability.
The output voltage of the LTC3604 can be adjusted by changing the resistive divider ratio between the VOUT pin and the GND pin. The output voltage is determined by the formula: VOUT = 0.8V x (R1 + R2) / R2, where R1 and R2 are the resistors in the divider.
The maximum output current that the LTC3604 can deliver is 4A, but it's recommended to keep the output current below 3A for optimal performance and to prevent overheating.