A good PCB layout for the MAX8875EUK33+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 the stability of the output voltage, it is recommended to use a minimum output capacitance of 10uF, and to keep the equivalent series resistance (ESR) of the output capacitor below 1 ohm. Additionally, the input voltage should be well-regulated and free of noise.
The MAX8875EUK33+T can handle input voltages up to 28V, but it is recommended to keep the input voltage below 24V for optimal performance and to prevent overheating.
The power dissipation of the MAX8875EUK33+T can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current. The maximum power dissipation of the IC is 3.5W.
The EN (enable) pin on the MAX8875EUK33+T is used to enable or disable the regulator. When the EN pin is pulled high, the regulator is enabled, and when it is pulled low, the regulator is disabled. This pin can be used to implement power sequencing or to shut down the regulator when not in use.
MAX8875EUK33+T datasheet
by Maxim Integrated Products
Findchips
