DESCRIPTION
The AIC3843 control IC provides the features that are necessary to implement off-line or DC/DC Converter fixed-frequency current-mode schemes with a minimum number of external components.

FEATURES
• Low Start-Up Current (300mA Typical)
• Internal Precision Reference.
• 500KHz Current-Mode Operation.
• Pulse-by-Pulse Current Limiting.
• Automatic Feed-Forward Compensation.
• Optimized for Off-line and DC/DC Converters.
• Under-voltage Lockout with Hysteresis.
• Double Pulse Suppression.
• High Current Totem Pole Output.

APPLICATIONS
• AC/DC Off-line Converter.
• DC/DC Off-line Converter.