8A, Low VIN DC/DC uModule with Tracking, Margining, Multiphase and Frequency Synchronization; Package: LGA; No of Pins: 68; Temperature Range: -55° to +125°C
The maximum input voltage that can be applied to the LTM4608 is 28V, but it's recommended to operate within 18V to ensure reliable operation.
To optimize the layout, 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.
A 10uF to 22uF X5R or X7R ceramic capacitor is recommended for the input capacitor, depending on the input voltage and desired ripple performance.
Choose an inductor with a saturation current rating above the peak current, and a DC resistance (DCR) that minimizes power loss. A 1uH to 10uH inductor is typically suitable for most applications.
The LTM4608 has a thermal derating of 2.5% per degree Celsius above 25°C, so it's essential to ensure good thermal management to maintain performance and reliability.