19 V - 75 W laptop adapter with tracking boost PFC pre-regulator, using the L6563 and the L6566A

In this data brief of the EVL6566A-75WADP demo board, the main characteristics and features of a 75 W adapter wide-range input mains, powerfactor- corrected AC-DC adapter using the new L6566A controller and the L6563 dedicated to the PFC stage are described.

High efficiency and the very low standby input consumption are highlighted in the following figures and tables. The board is programmed for working at fixed frequency (65 kHz) under nominal condition (19 V at 4 A).

On the secondary side the TSM1014 with a precise voltage reference and the optocoupler SFH617A-4 to transfer the error amplifiers information to the primary side have been used.

Key Features

  • Safety: According to EN60950
  • EMI: According to EN55022-Class-B
  • PCB single layer: single side, 70 μm, CEM-1, 78x174 mm, Mixed PTH/SMT
  • Universal input mains range: 90÷264Vac - Frequency 45 ÷ 65 Hz
  • Mains harmonics: Acc. to EN61000-3-2 Class-D
  • Output voltage: 19 V@4 A continuous operation
  • Overall efficiency: Better than 86%
  • Low profile design: 25 mm maximum height
  • ST-by mains consumption: Less than 0.25 W @265Vac


Technical Documentation

Product Specifications
Description Version Size
DB0471 DB0471: 19 V - 75 W laptop adapter with tracking boost PFC pre-regulator, using the L6563 and the L6566A 1.3 196 KB
Application Notes
Description Version Size
AN2690 AN2690: 19 V - 75 W adapter with pre-regulator PFC using the L6563 and the L6566A 1.1 1 MB


License Agreement
Description Version Size
Evaluation products license agreement 1.4 128 KB
Support & Community

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
EVL6566A-75WADP ActiveCARDIndustrialEcopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.