10W to 20W Multiple Output Flyback

The isolated, multiple output application is suited to applications requiring all of the common logic supply voltage: 5V, 3.3V, 2.5V and 1.2V. The flyback architecture is easily expandable: two additional outputs at 12V and 6.6V are shown in this application. The design is scalable as well by selecting different FPS™ devices and transformers.

Application Notes

•	AN-4105 PDF Design Considerations for SMPS using a FPS in a Flyback Converter
•	AN-4137 PDF Design Guidelines for Off-line Flyback Converters Using FPS
•	AN-4137SC PDF Chinese Translation: Design Guidelines for Off-line Flyback Converters Using FPS
•	AN-4138 PDF Design Considerations for Green Mode Fairchild Power Switch (FPS™)
•	AN-4140 PDF Transformer Design Consideration for off-line flyback Converters using Fairchild Power Switch (FPS™)
•	AN-4141 PDF Troubleshooting and Design Tips for Fairchild Power Switch (FPS™) Flyback Applications

Literature

•	Fairchild Product Catalog -Discrete Power PDF

Design Tools

•	Power Supply Design Toolkit (Registration required)