The recommended layout and placement for the MAX7425EUA+ involves keeping the input and output traces as short as possible, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure the MAX7425EUA+ is properly powered and decoupled, use a high-quality, low-ESR capacitor (e.g., 10uF ceramic) as close as possible to the device's power pins. Additionally, use a 1uF to 10uF decoupling capacitor between the input and ground pins.
The MAX7425EUA+ can handle input voltages up to 12V, but it's recommended to operate within the specified input voltage range of 4.5V to 10.5V for optimal performance and reliability.
To configure the MAX7425EUA+ for a specific output voltage, use the feedback resistors (R1 and R2) to set the output voltage according to the formula: VOUT = 1.25V x (1 + R2/R1). Choose the resistor values to achieve the desired output voltage within the specified range of 1.25V to 10V.
The MAX7425EUA+ can provide a maximum output current of 500mA. However, the actual output current may be limited by the input voltage, output voltage, and thermal considerations.
MAX7425EUA+ datasheet
by Maxim Integrated Products
