The recommended layout and placement for the TPS3808G01DBVT involves placing the device close to the power source, using a solid ground plane, and keeping the input and output capacitors close to the device. Additionally, it is recommended to use a low-ESR capacitor for the input capacitor and to minimize the length of the traces between the device and the capacitors.
When choosing input and output capacitors for the TPS3808G01DBVT, consider the voltage rating, capacitance value, and equivalent series resistance (ESR). A minimum capacitance value of 1uF is recommended for the input capacitor, and a minimum capacitance value of 2.2uF is recommended for the output capacitor. The ESR of the capacitors should be as low as possible to minimize power losses.
The maximum ambient temperature range for the TPS3808G01DBVT is -40°C to 125°C. However, the device's performance and reliability may be affected at extreme temperatures, so it is recommended to operate the device within a temperature range of -20°C to 85°C for optimal performance.
To ensure the TPS3808G01DBVT is properly powered up and powered down, follow the recommended power-up and power-down sequences outlined in the datasheet. The device should be powered up slowly, with a ramp-up time of at least 1ms, and powered down slowly, with a ramp-down time of at least 1ms.
The TPS3808G01DBVT has a thermal pad that must be connected to a solid ground plane to ensure proper heat dissipation. The device's junction temperature should be kept below 150°C to ensure reliable operation. A thermal interface material (TIM) can be used to improve heat transfer between the device and the PCB.
TPS3808G01DBVT datasheet
by Texas Instruments
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