The first design is a 65-W USB-C PD adapter with the following specifications in Table 6-1.

The UCC28782EVM-030 is able to achieve a power density of $30\frac{W}{i{n}^3}$ or $1.83\frac{W}{cc}$ . The UCC28782EVM-030 compact form-factor is show in Figure 6-1.

This small size is achieved by operating with a maximum switching frequency of approximately 240 kHz, which allows a smaller inductance requirement, and as a result, a smaller transformer core size.

The full load efficiency across input voltage is shown in Figure 6-2.

As shown, the design exceeds CoC and DoE efficiency requirements. Additionally, the standby power consumption is kept at a minimum of 48 mW at 115-VAC input and 58 mW at 230-VAC input. This is achieved by the standby modes of operation of LMG2610 and UCC28782.

The thermals, captured at full load after 30 minutes, are shown in the following images.

Temperatures are managed all across the board to provide a thermally reliable operation. This is achieved through the previously discussed power-saving mechanisms such as ZVS, zero-clamp-loss, and current sense emulation.

In summary, this design achieves the small-form-factor goal by successfully managing thermals and switching at high frequency.