A good PCB layout for the TPS22901YFPR involves keeping 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 shielded inductor and to keep the device away from high-frequency signals.
To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the output capacitor is properly sized and that the input voltage is within the recommended range. It's also important to decouple the input voltage with a capacitor to reduce noise and prevent oscillation.
The TPS22901YFPR can handle input voltages up to 5.5V, but it's recommended to keep the input voltage below 5V to ensure proper operation and to prevent damage to the device.
The TPS22901YFPR is rated for operation up to 85°C, but it's recommended to derate the device's performance at higher temperatures. It's also important to ensure proper thermal management and to follow the recommended PCB layout guidelines to minimize thermal resistance.
The output voltage of the TPS22901YFPR can be calculated using the following formula: Vout = (R1 / R2) * Vin, where R1 and R2 are the resistors in the feedback network. Make sure to choose the correct resistor values to achieve the desired output voltage.