
Anpec Electronics
General Description
The APW7035 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 reference voltage (1.25V) or GPU Voltage (2.05V) with a synchronous-rectified buck converter. The linear controller regulates power for Memory Voltage.
FEATUREs
• 2 Regulated Voltage are provided
− Switching Power for Fixed Voltage (1.25V / 2.05V) or Adjustable Voltage
− Linear Regulator for FBVDDQ(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
− Constant Frequency Operation(200kHz)
− Reduce External Component Count
APPLICATIONs
• Motherboard Power Regulation for Computers
• Low-Voltage Distributed Power Supplies
• VGA Card Power Regulation
• Termination Voltage