This is a 19 V - 65 W power adapter with very high average efficiency and very low no load power consumption.
The EVL6566B-65W-QR is a demonstration board tailored for a typical high-end portable computer power supply. It utilizes the STMicroelectronics L6566B current mode controller operating in quasi-resonant mode. The design achieves an average efficiency of better than 89% without synchronous rectification and a standby mains consumption of less than 100 mW at 230 Vac.
| Input voltage range | 90 - 264 Vac |
|---|---|
| Output voltage | 19 V |
| Output current | 3.42 A |
| Maximum power | 65 W |
| Standby consumption | <100 mW |
| Average efficiency | Better than 89% |
| Dimensions | 58x121 mm |
| Controller | L6566B |
The maximum switching frequency is set at about 165 kHz.
The PCB is single side, 35 um, CEM-1, with mixed PTH/SMT.