General Description
The AP3003 series of regulators are fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with excellent line and load regulation. These regulators include internal frequency compensation and a fixed frequency oscillator so that they are easy to use. A system adopting AP3003 requires a minimum number of external components to work.
   
Features
• 3.3V, 5V, 12V Fixed (±4% Tolerance) and
    Adjustable (±3% Tolerance) Output Versions
• Guaranteed 3A Output Load Current
• 150kHz Fixed Frequency Internal Oscillator
• Input Voltage Range up to 32V
• Requires only 4 external components
• High Efficiency up to 90%
• Excellent Line and Load Regulation
• TTL Shutdown Capability
• Low Power Standby Mode, IQ Typically 80µA
• Built-in Current Limit Protection and Thermal
    Shutdown Circuit
   
Applications
• LCD Monitor and LCD TV
• On-Card DC-DC Converter
• DVD Recorder
• PDP