Texas Instruments provides a recommended PCB layout in the TPS82670SIPT datasheet, but it's also recommended to follow the general guidelines for switching regulator layout, such as keeping the input and output capacitors close to the IC, and using a solid ground plane to reduce noise and EMI.
The selection of the inductor depends on the output current, output voltage, and switching frequency. Texas Instruments provides a list of recommended inductors in the datasheet, but you can also use the inductor selection guide provided by the inductor manufacturer or use online tools such as the TI Power Designer software to select the right inductor.
The TPS82670SIPT has an absolute maximum input voltage rating of 6.5V, but the recommended maximum input voltage is 5.5V to ensure reliable operation and to prevent damage to the IC.
The output voltage of the TPS82670SIPT can be adjusted by changing the value of the feedback resistors (RFBT and RFBG) according to the formula provided in the datasheet. The output voltage can also be adjusted using an external voltage reference or a digital-to-analog converter (DAC).
The thermal shutdown temperature of the TPS82670SIPT is typically around 150°C, but this can vary depending on the specific device and the operating conditions. It's recommended to check the datasheet or contact Texas Instruments for more information.
TPS82670SIPT datasheet
by Texas Instruments
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