3www.fairchildsemi.com/fpsFPS™ Design GuideWhat is Fairchild Power Switch FPS™ .......................................................................................................5FPS™ Integrated Solution .........................................................................................................................6Green FPS™ – New FPS™ Family.............................................................................................................7Green FPS™ Features and Advantages......................................................................................................8Burst Mode Operation .......................................................................................................................9Frequency Modulation for EMI ..........................................................................................................10Over Load Protection .......................................................................................................................11FPS™ Core Products ..............................................................................................................................12Complete FPS™ Product Offering Sorted by Output Power.........................................................................13Typical Applications ..............................................................................................................................14Examples of Typical Application Circuits .............................................................................................15-261W Power Supply with Less Than 100mW Standby Power ..................................................................15Dual Negative Output Non-Isolated Flyback .......................................................................................162.5W Single Output Isolated Flyback Using FSD200 with KA431 Reference .........................................1710W Single Output Isolated Flyback Using FSDM0265R and Zener Diode ...........................................1810W Multiple Output Isolated Flyback Using FSD210 with Primary Side Regulation ...............................195W Buck Converter Using FSDL0165RN ...........................................................................................2016W Multiple Output Isolated Flyback Converter Using FSDM0265RN.................................................21180W–200W KA5Q1265RF Quasi-resonant Flyback with Input PowerFactor Correction Using FAN7527B/FQP13N50C.........................................................................22-2340W Isolated Flyback Power Supply .................................................................................................2424W Single Output 48V DC/DC Flyback Converter ...........................................................................25Secondary Side Synchronous Rectification in a Power Over Ethernet Application ...................................26Design Tools .........................................................................................................................................27Ordering Guide ....................................................................................................................................28Table Of Contents