Feature
General Description
The AP3842C/3C/4C/5C are high performance fixed frequency current-mode PWM controller series.
• Low Start-up Current: 50µA
• Robust VREF Line/Load Regulation
Low Line Regulation : 4mV
Low Load Regulation : 4mV
• High Stability of Reference Voltage over a Full
Temperature Range: 0.2mV/ oC
• Operating Frequency up to 500KHz
• High PWM Frequency Stability over a Full Temperature Range: 2.5%
• High PWM Frequency Stability under a Full Supply Voltage Range: 0.2%
• Accurate Over-temperature Protection with Hysteresis
• UVLO with Hysteresis
Applications
• Off-line Converter
• DC-DC Converter
• Voltage Adapter
• CRT Monitor Power Supply
• Desktop Power Supply
• DVD/STB Power Supply
