A good PCB layout for the TPS22913CYZVR involves placing the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the traces between the device and the capacitors. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure proper power-up and power-down of the TPS22913CYZVR, it's recommended to follow a controlled power-up sequence, where the input voltage is applied before the enable signal. During power-down, the enable signal should be turned off before the input voltage is removed. This helps prevent unwanted current surges and ensures a clean shutdown.
The maximum allowable voltage on the EN pin of the TPS22913CYZVR is 6V. Exceeding this voltage can cause damage to the device. It's recommended to use a voltage limiter or a voltage divider to ensure the EN pin voltage remains within the specified range.
The TPS22913CYZVR is rated for operation up to 85°C. However, it's recommended to derate the device's performance at higher temperatures. For operation above 85°C, it's recommended to consult with Texas Instruments' application engineers to determine the device's suitability for the specific application.
To troubleshoot issues with the TPS22913CYZVR, start by verifying the input voltage, output voltage, and enable signal. Check for proper PCB layout, decoupling, and thermal management. Use an oscilloscope to monitor the output voltage and current. Consult the datasheet and application notes for guidance on troubleshooting common issues.
TPS22913CYZVR datasheet
by Texas Instruments
