A good PCB layout for the MAX1792EUA18+ involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces connecting the IC to the capacitors and resistors. 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 essential to choose the correct output capacitor value and type. A minimum capacitance of 10uF with an ESR of 1ohm or less is recommended. Additionally, the output capacitor should be placed close to the IC, and the feedback resistors should be chosen to ensure a stable output voltage.
The MAX1792EUA18+ can handle a maximum input voltage of 18V. However, it is recommended to operate the IC within the specified input voltage range of 4.5V to 16V for optimal performance and reliability.
The output voltage of the MAX1792EUA18+ can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage (1.25V), R1 is the feedback resistor connected between the output and the feedback pin, and R2 is the feedback resistor connected between the feedback pin and ground.
The MAX1792EUA18+ can deliver a maximum output current of 2A. However, the output current should be limited to 1.5A for optimal performance and reliability.
MAX1792EUA18+ datasheet
by Maxim Integrated Products
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