To generate 12VDC from a solar panel output of 3-5V, a DC-to-DC converter integrated circuit, such as the IC7660, is recommended. Users can find application examples and detailed information in the IC's datasheet. It is important to note that these circuits are not designed for high power applications. The discussion emphasizes the utility of the IC7660 for this voltage conversion task. Overall, this method provides a practical solution for achieving the desired voltage from a low-output solar panel.