A good PCB layout for the MAX3374EEKA+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. Additionally, it's recommended to use a shielded inductor and to keep the inductor away from sensitive analog circuits.
To ensure the MAX3374EEKA+T operates within its recommended operating conditions, make sure to provide a stable input voltage within the recommended range (2.7V to 5.5V), keep the ambient temperature within the recommended range (-40°C to +85°C), and avoid exceeding the maximum current rating (1.5A).
The recommended input capacitor value for the MAX3374EEKA+T is 1uF to 10uF, with a voltage rating of at least 6.3V. A ceramic capacitor (X5R or X7R dielectric) is recommended due to its low ESR and high reliability.
The output voltage of the MAX3374EEKA+T can be calculated using the following formula: VOUT = VREF x (1 + R1/R2), where VREF is the internal reference voltage (1.25V), R1 is the feedback resistor, and R2 is the divider resistor.
The EN (enable) pin on the MAX3374EEKA+T is used to enable or disable the regulator. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled. This pin can be used to implement power sequencing or to turn off the regulator when not in use.
MAX3374EEKA+T datasheet
by Maxim Integrated Products
