The recommended layout and routing for the MAX792SESE+ involves keeping the analog and digital grounds separate, 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 ground plane is recommended.
To ensure proper power-up and initialization, the MAX792SESE+ requires a power-on reset (POR) circuit to ensure the internal registers are reset to their default state. A 10kΩ pull-up resistor on the RST pin and a 0.1μF capacitor on the VCC pin are recommended.
The maximum allowed capacitance for the output capacitors (COUT) on the MAX792SESE+ is 10μF. Exceeding this value may cause instability or oscillation in the output voltage.
The output voltage of the MAX792SESE+ can be adjusted by connecting a resistive divider network between the VOUT pin and the ADJ pin. The output voltage is determined by the ratio of the resistors in the divider network.
The MAX792SESE+ has a thermal derating of 6.4mW/°C above 25°C. This means that the maximum power dissipation decreases by 6.4mW for every degree Celsius above 25°C.
MAX792SESE+ datasheet
by Maxim Integrated Products
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