This application note demonstrates the performance of the PM6680 dual step-down controller by implementing a two output point of load converter in a small printed circuit board footprint.
The document presents a two-output point of load converter implementation using the PM6680 dual step-down controller. The design utilizes constant on-time architecture and features a no-audio skip mode to improve efficiency at light loads, operating within an input voltage range of 10 to 16 V.
| Input voltage range | 10 - 16 VDC |
|---|---|
| Output 1 nominal voltage | 1.8 V |
| Output 1 max current | 2.5 A |
| Output 2 nominal voltage | 1.0 V |
| Output 2 max current | 10.5 A |
| Output 1 ripple voltage | 45 mV p-p |
| Output 2 ripple voltage | 30 mV p-p |
The input voltage ranges between 10 to 16 V.
The total output power level is 15 watts.