Description
The L6563S is a current-mode PFC controller operating in transition mode (TM). Coming with the same pin-out as its predecessor L6563, it offers improved performance and additional functions.

Features
■ Tracking boost function
■ Fast “bidirectional” input voltage feedforward (1/V2 correction)
■ Interface for cascaded converters PWM controller
■ Remote ON/OFF control
■ Accurate adjustable output overvoltage protection
■ Protection against feedback loop disconnection (latched shutdown)
■ Inductor saturation protection
■ Low (≤ 100 µA) start-up current
■ 6 mA max. operating bias current
■ 1% (@ TJ = 25 °C) internal reference voltage
■ -600/+800 mA totem pole gate driver with active pull-down during UVLO
■ SO14 package

Applications
PFC pre-regulators for:
■ High-end AC-DC adapter/charger
■ Desktop PC, server, Web server
■ IEC61000-3-2 or JEITA-MITI compliant SMPS, in excess of 400 W