A good PCB layout for the TPS78101DRVR involves placing 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 in application notes.
Choose input and output capacitors with low ESR, high ripple current rating, and a voltage rating that exceeds the maximum input voltage. X5R or X7R ceramic capacitors are good options. The datasheet provides guidance on capacitor selection.
The TPS78101DRVR can handle input voltages up to 18V, but the absolute maximum rating is 20V. Operating the device above 18V may reduce its reliability and lifespan.
The TPS78101DRVR is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. Ensure proper thermal design and consider derating the device's output current at high temperatures.
To ensure stability, follow the recommended PCB layout, use a sufficient output capacitor, and avoid long input and output traces. The datasheet provides guidance on stability and oscillation prevention.