The LMG3626EVM-074 evaluation module (EVM) demonstrates high-efficiency and high-density for a 65-W USB Type-C® power delivery (PD) off-line adapter using the LMG3626 integrated GaN FET with current-sense emulation. The input supports a universal 90 Vac to 265 Vac and the single output can be set to 5 V, 9 V and 15 V all at 3-A maximum and 20 V at 3.25-A maximum, which can be adjusted with the USB PD interface controller. High frequency operation up to 200-kHz nominal enables small solution size while the multi-mode operation maintains high efficiency. Synchronous rectification is used on the output to increase efficiency.
Features
- Universal AC input of 90 Vac to 264 Vac with USB Type-C PD 3.0 compliant output up to 65 W (5 V / 3 A, 9 V / 3 A, 15 V / 3 A, 20 V / 3.25 A)
- Efficiency and standby power consumption exceed regulatory requirements CoC Tier 2 and DoE Level VI
- Power density of 28 W / in3 with an efficiency of 93% at 90-VAC full load
- Integrated GaN device reduces component count and increases efficiency with current-sense emulation