General Description
The APW7045 integrates PWM controller and linear controller, as well as the monitoring and protection functions into a single package, which provides two controlled power outputs with over-voltage and overcurrent protections. The PWM controller regulates the DDR termination voltage (1.25V) or GPU Voltage (2.05V) with a synchronous-rectified buck converter.

Features
• 2 Regulated Voltage are provided
    −Switching Power for Fixed Voltage (1.0V)
    −Linear Regulator for VMEM(2.5V)
• Simple Single-Loop Control Design
    −Voltage-Mode PWM Control
• Excellent Output Voltage Regulation
    −PWM Output: ±1%
    −Linear Output: ±3%
• Fast Transient Response
    −High-Bandwidth Error Amplifier
    −Full 0% to 100% Duty Ratio
• Power-Good Output Voltage Monitor
• Over-Voltage and Over-Current Fault Monitors
• Small Converter Size
    −200KHz Free-Running Oscillator ; Progammable from 50KHz to 800KHz
    −Reduce External Component Count

Applications
• Motherboard Power Regulation for Computers
• Low-Voltage Distributed Power Supplies
• VGA Card Power Regulation
• DDR SDRAM Power Regulation