This reference design is a high-density 60-W, 115-VAC input power supply for USB Type-C® applications. The typical application is a single-stage, USB Type-C charger that can support two ports which simultaneously provide the same output voltage. The maximum power rating is 60 W at 20-V or 15-V output, 54 W at 9-V output, and 30 W at 5-V output. This power supply is designed to minimize power loss at all output voltage configurations. The LMG2610 GaN half-bridge simplifies the power stage with the included integrated gate drivers, current sense emulation, and high-side level shifter. These integrated features eliminate the need for external gate-drive circuitry, current-sense transformer (and associated losses), and high-side isolator. The UCC28782 active clamp flyback controller and UCC24612 synchronous rectifier driver allow this design to achieve a peak efficiency of 94.8% within the compact dimensions of 1.5 in × 3.35 in × 1 in (37.5 mm × 85 mm × 25 mm) and minimize temperature rise.