The recommended PCB layout for the LTC1844ES5-BYP#TRPBF involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the input and output capacitors close to the device. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to minimize noise and EMI.
The selection of input and output capacitors for the LTC1844ES5-BYP#TRPBF depends on the specific application requirements. In general, X5R or X7R ceramic capacitors with a voltage rating of at least 2x the maximum input voltage are recommended. The output capacitor should be selected based on the desired output ripple voltage and the maximum output current.
The maximum ambient temperature range for the LTC1844ES5-BYP#TRPBF is -40°C to 125°C. However, the device's performance and reliability may be affected at extreme temperatures, and it's recommended to operate the device within a temperature range of -20°C to 85°C for optimal performance.
To ensure the LTC1844ES5-BYP#TRPBF is properly powered up and powered down, it's recommended to follow a controlled power-up and power-down sequence. This involves slowly ramping up the input voltage, waiting for the device to stabilize, and then slowly ramping down the input voltage during power-down.
The recommended input voltage range for the LTC1844ES5-BYP#TRPBF is 2.7V to 5.5V. Operating the device outside of this range may affect its performance and reliability.
LTC1844ES5-BYP#TRPBF datasheet
by Linear Technology
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