A good PCB layout for the MAX8902BATA+T involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
To ensure stability, make sure the output capacitor is within the recommended range (10uF to 22uF), the input capacitor is at least 1uF, and the feedback resistors are within the recommended range (1kΩ to 10kΩ). Also, ensure the PCB layout is well-designed and the component placement is optimal.
The MAX8902BATA+T can handle input voltages up to 28V, but it's recommended to keep the input voltage below 24V for optimal performance and to prevent overheating.
The output voltage of the MAX8902BATA+T can be adjusted by changing the feedback resistors (R1 and R2) according to the formula: Vout = 0.8V x (1 + R2/R1). Make sure to choose resistors with a tolerance of 1% or better to ensure accurate output voltage.
The MAX8902BATA+T can deliver up to 2A of output current, but it's recommended to keep the output current below 1.5A for optimal performance and to prevent overheating.