The recommended layout and placement for the TPS3801E18DCKR 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 TPS3801E18DCKR depends on the specific application requirements. In general, a low-ESR capacitor with a value of 10uF to 22uF is recommended for the input capacitor, while a capacitor with a value of 4.7uF to 10uF is recommended for the output capacitor. The capacitor voltage rating should be at least 2x the input voltage.
The TPS3801E18DCKR can handle a maximum input voltage of 18V. However, it is recommended to operate the device within the recommended input voltage range of 6.5V to 18V to ensure optimal performance and reliability.
The output voltage of the TPS3801E18DCKR can be adjusted by using a resistive divider network between the output pin and the ground pin. The output voltage can be calculated using the formula: Vout = 1.2V x (R1 / R2 + 1), where R1 and R2 are the resistors in the divider network.
The TPS3801E18DCKR can provide a maximum output current of 1A. However, the actual output current may be limited by the input voltage, output voltage, and the internal power dissipation of the device.
TPS3801E18DCKR datasheet
by Texas Instruments
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