A good PCB layout for the TPS84259RKGT involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. TI provides a recommended PCB layout in the datasheet and application notes.
The choice of input and output capacitors depends on the specific application requirements. TI recommends using low-ESR capacitors with a minimum capacitance of 10uF for the input and output. The capacitor selection guide in the datasheet can help with selecting the right capacitors.
The TPS84259RKGT is rated for operation from -40°C to 125°C. However, the device's performance and reliability may degrade at extreme temperatures. It's essential to consider the thermal design and heat dissipation in the system.
Yes, the TPS84259RKGT is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard for automotive applications and is suitable for use in harsh environments.
TI provides a troubleshooting guide in the datasheet and application notes. Common issues can be resolved by checking the PCB layout, input and output capacitor selection, and thermal design. If the issue persists, contact TI's support team for further assistance.