Features
■ Transition-mode control of PFC pre-regulators
■ Very precise adjustable output overvoltage
protection
■ Tracking boost function
■ Protection against feedback loop failure
(Latched shutdown)
■ Interface for cascaded converter's PWM
controller
■ Input voltage feedforward (1/V2)
■ AC brownout protection
■ Low (≤ 90μA) start-up current
■ < 5mA quiescent current
■ 1.4% (@ 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:
■ HI-END AC-DC adapter/charger
■ Desktop PC, server, WEB server
■ IEC61000-3-2 OR JEIDA-MITI compliant
SMPS, in excess of 250W