Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow 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. TI provides a list of recommended inductors in the datasheet, but you can also use online inductor selection tools or consult with an inductor manufacturer to find the right one for your application.
The maximum ambient temperature for the TPS65021RHATG4 is 85°C, but the device can operate up to 105°C with derating. It's essential to consider the thermal design and heat dissipation in your application to ensure reliable operation.
The TPS65021RHATG4 is a QFN package, which can be sensitive to vibration. However, TI provides guidance on vibration testing and recommends using underfill or potting to improve the device's resistance to vibration. It's essential to evaluate the device's performance in your specific vibration environment.
TI provides a troubleshooting guide in the datasheet, which covers common issues such as output voltage errors, oscillations, and overheating. Additionally, you can use oscilloscopes and other debugging tools to identify the root cause of the issue and consult with TI's support team if needed.
TPS65021RHATG4 datasheet
by Texas Instruments
