Texas Instruments provides a recommended PCB layout in the TPS75201 datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths to reduce noise and EMI.
To ensure stability, follow the recommended component values and PCB layout, and make sure the output capacitor is properly sized and placed. Additionally, consider adding a small series resistor (e.g., 1-10 ohms) between the output capacitor and the load to prevent oscillations.
Although the datasheet specifies a maximum input voltage of 15V, it's recommended to limit the input voltage to 12V to ensure reliable operation and prevent damage to the device.
While ceramic capacitors can be used, they may not be the best choice due to their potential for resonant behavior and increased Equivalent Series Resistance (ESR). A low-ESR electrolytic or tantalum capacitor is recommended for the output capacitor to ensure stability and optimal performance.
The output voltage ripple and noise can be calculated using the equations provided in the datasheet. However, it's essential to consider the specific application requirements and the device's operating conditions to accurately estimate the output voltage ripple and noise.
TPS75201MPWPREP datasheet
by Texas Instruments
