A good PCB layout for the MAX6818EAP+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 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure proper power-up and initialization of the MAX6818EAP+T, make sure to follow the recommended power-up sequence, which involves applying the input voltage (VIN) before the enable signal (EN). Also, ensure that the input voltage is within the recommended range (2.7V to 5.5V) and that the enable signal is properly debounced.
The MAX6818EAP+T can deliver up to 150mA of output current. However, it's recommended to limit the output current to 100mA or less to ensure reliable operation and to prevent overheating.
The output voltage of the MAX6818EAP+T can be adjusted by using an external resistor divider network connected to the FB (feedback) pin. The output voltage can be calculated using the formula: VOUT = 1.25V x (R1 + R2) / R2, where R1 and R2 are the resistors in the divider network.
The EN (enable) pin on the MAX6818EAP+T is used to enable or disable the regulator. When the EN pin is high, the regulator is enabled and the output voltage is regulated. When the EN pin is low, the regulator is disabled and the output voltage is turned off.
MAX6818EAP+T datasheet
by Maxim Integrated Products
Findchips
