Texas Instruments provides a recommended PCB layout in the TPS7A2518DRVR evaluation module (EVM) user's guide, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
The selection of the output capacitor depends on the output voltage, output current, and desired transient response. A general guideline is to use a low-ESR capacitor with a value between 10uF to 22uF. The TPS7A2518DRVR datasheet provides more detailed guidance on output capacitor selection.
The TPS7A2518DRVR has an absolute maximum input voltage rating of 18V. However, the recommended maximum input voltage is 15V to ensure reliable operation and to prevent damage to the device.
The TPS7A2518DRVR has a built-in overcurrent protection feature that can be enabled by connecting the OCP pin to a resistor divider network. The resistor values can be calculated based on the desired overcurrent threshold and the output voltage.
The TPS7A2518DRVR has a thermal derating curve that reduces the maximum output current as the junction temperature increases. The datasheet provides a thermal derating curve that can be used to determine the maximum output current at a given ambient temperature.