AT3273 - ATC

AT3273 Current Mode PWM Controller

AT3273 is a highly integrated current mode PWM control IC optimized for high performance low standby power offline flyback converter applications. To meet the international power conservation requirements, optimized green mode is integrated to improve the efficiency at light or no load conditions with no audible noise. Slope compensation is integrated to ens.

Features

●Frequency jitter function to improve EMI performance of power supply
●No-audible-noise green mode Control
● Multi operation mode: Fixed-frequency CCM, green mode and burst mode.
● Internal Slope Compensation
● Low VDD Startup Current and Low Operating Current
● Leading Edge Blanking
● UVLO
● Gate Max Output Voltage Clamp at 12V
● Overload Protection (OLP).
● Over temperature Protection (OTP).
● Line Compensation Over Current Protection (OCP) Applications Offline AC/DC flyback converter for
● Battery Charger
● Power Adaptor
● Set-Top Box Power Supplies
● Open-frame SMPS
● PC 5V Standby Power .