The recommended layout and placement for the MAX1473ETJ+ 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 minimize noise and EMI.
To ensure the MAX1473ETJ+ is properly powered and biased, make sure to connect the VCC pin to a stable 3.3V or 5V power supply, and the GND pin to a solid ground plane. Also, ensure that the input voltage (VIN) is within the recommended range of 2.7V to 5.5V, and that the output voltage (VOUT) is properly decoupled with a 10uF capacitor.
The maximum output current capability of the MAX1473ETJ+ is 150mA. 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 MAX1473ETJ+ can be adjusted by connecting a resistive divider network between the VOUT pin and the GND pin. The output voltage can be calculated using the formula: VOUT = (R1 / (R1 + R2)) * VREF, where R1 and R2 are the resistors in the divider network, and VREF is the internal reference voltage (1.25V).
The EN (enable) pin on the MAX1473ETJ+ is used to enable or disable the device. When the EN pin is pulled high (above 1.4V), the device is enabled and the output voltage is regulated. When the EN pin is pulled low (below 0.4V), the device is disabled and the output voltage is turned off.
MAX1473ETJ+ datasheet
by Maxim Integrated Products
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