Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow the guidelines in the TI application note 'PCB Layout Guidelines for Switching Regulators' (SLUP230) to ensure optimal performance and minimize EMI.
The selection of the inductor depends on the specific requirements of your design, such as the input voltage, output voltage, and current. TI provides a list of recommended inductors in the datasheet, but you can also use the TI Inductor Selection Tool to find a suitable inductor for your application.
The maximum junction temperature of the BQ29312APWRG4 is 150°C, but it's recommended to keep the junction temperature below 125°C for optimal reliability and performance.
The BQ29312APWRG4 is rated for operation up to 105°C, but it's recommended to derate the output current and voltage according to the thermal derating curve in the datasheet to ensure reliable operation in high-temperature environments.
TI provides a troubleshooting guide in the datasheet, which covers common issues such as output voltage errors, overcurrent protection, and thermal shutdown. You can also use TI's Power Management Troubleshooting Guide (SLUA623) for more general guidance on troubleshooting power management issues.