Texas Instruments recommends a compact layout with the TPS3780BDRYT placed close to the power source and load. Ensure that the input and output capacitors are placed as close as possible to the device. A 4-layer PCB with a solid ground plane is recommended to minimize noise and EMI.
Choose input capacitors with a low ESR (Equivalent Series Resistance) and a high ripple current rating. For output capacitors, select ones with a low ESR and a high capacitance value. The datasheet recommends a minimum of 10uF for the input capacitor and 22uF for the output capacitor. X5R or X7R ceramic capacitors are suitable options.
The maximum ambient temperature for the TPS3780BDRYT is 85°C. However, the device can operate up to 105°C with derating. It's essential to ensure proper thermal management and heat dissipation to maintain reliability and performance.
Yes, the TPS3780BDRYT is AEC-Q100 qualified, making it suitable for automotive and high-reliability applications. However, it's essential to follow the recommended layout, thermal management, and component selection guidelines to ensure the device meets the required reliability and performance standards.
Start by verifying the input voltage, output load, and component selection. Check for proper PCB layout, thermal management, and decoupling. Use an oscilloscope to monitor the output voltage and input voltage ripple. Consult the datasheet and application notes for troubleshooting guidelines and common pitfalls to avoid.
TPS3780BDRYT datasheet
by Texas Instruments
