A good PCB layout for the MAX4090EUT-T involves keeping the input and output traces separate, using a solid ground plane, and placing the device close to the input filter capacitors. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to minimize noise and ensure optimal performance.
The choice of input filter capacitors for the MAX4090EUT-T depends on the specific application and the desired level of filtering. In general, a 10uF to 22uF ceramic capacitor with a voltage rating of 10V to 16V is a good starting point. The capacitor should be placed as close as possible to the VIN pin of the device.
The MAX4090EUT-T can handle input voltages up to 28V, but it's recommended to operate the device within the specified operating range of 4.5V to 16V to ensure optimal performance and reliability.
To ensure the stability of the output voltage of the MAX4090EUT-T, it's recommended to use a minimum output capacitance of 10uF with an ESR of 1 ohm or less. Additionally, the output voltage should be decoupled with a 1uF to 10uF ceramic capacitor to filter out high-frequency noise.
The MAX4090EUT-T can deliver a maximum output current of 1A, but the actual output current may be limited by the input voltage, output voltage, and the internal power dissipation of the device.
MAX4090EUT-T datasheet
by Maxim Integrated Products
