AN2690 Datasheet, PDF (1/31 Pages) STMicroelectronics – This application note describes the characteristics and the features

AN2690
Application note
19 V - 75 W adapter with pre-regulator PFC
using the L6563 and the L6566A
Introduction
This application note describes the characteristics and the features of a 75 W reference
board, wide-range input mains and power-factor corrected. Its electrical specification is
tailored on a typical high-end portable computer power adapter. The peculiarities of this
design are very low standby power consumption and excellent global efficiency.
Figure 1. L6566A and L6563-75W adapter demonstration board (EVL6566A-
75WADP)
June 2008
Rev 1
1/31
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