300 W 80 PLUS® ATX Reference Design

Production Ready 80 PLUS® Reference Design

• A High-Efficiency GreenPoint® Solution
• Active mode efficiency:

  	20% load	50% load	100% load
  115 Vac in	81.8%	83.8%	81.8%
  230 Vac in	84.2%	86.5%	85.2%

  
  
• Power factor controlled, meets IEC 61000-3-2 requirements
• Exceeds ENERGY STAR® efficiency requirements for desktop computers, version 4.0
• Exceeds Step #1 of the Climate Savers Computing Initiative

Industry Information

• ENERGY STAR®
• 80 PLUS Efficiency Requirements
• IEC 61000-3-2 Requirements
• ATX 12 V Form Factor

Supporting Documents and Tools

• 80 PLUS Verification and Testing Report
• ATX Power Supply Documentation Package
• Power Factor Correction Handbook
• NCP1653 PFC Boost Design Worksheet
• Four Key Steps to Design a Continuous Conduction Mode PFC Stage Using the NCP1653
• 300 W, Wide Mains, PFC Stage Driven by the NCP1653