The recommended layout and placement for the TPS3808G33DRVT 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.
The choice of input and output capacitors for the TPS3808G33DRVT depends on the specific application requirements. In general, a low-ESR capacitor with a value of 1-10uF is recommended for the input capacitor, while a capacitor with a value of 1-22uF is recommended for the output capacitor. The capacitor voltage rating should be at least 1.5 times the maximum input voltage.
The TPS3808G33DRVT can handle a maximum input voltage of 18V. However, it is recommended to operate the device within the recommended input voltage range of 2.7V to 15V for optimal performance and reliability.
To ensure the TPS3808G33DRVT is stable and does not oscillate, it is recommended to follow the recommended layout and placement guidelines, use a low-ESR input capacitor, and ensure that the output capacitor is properly sized and placed. Additionally, it is recommended to add a small ceramic capacitor (e.g. 10nF) between the VIN and GND pins to improve stability.
The TPS3808G33DRVT can provide a maximum output current of 3A. However, the actual output current capability may be limited by the input voltage, output voltage, and thermal considerations.
TPS3808G33DRVT datasheet
by Texas Instruments
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