San Jose, California – March 17, 2008 – Fairchild Semiconductor’s (NYSE: FCS) Green FPS power switch, the FSFR2100, was voted February’s most popular application-specific IC on semiapps.com. This highly integrated power switch increases power efficiency and system reliability, and reduces valuable design time in resonant converter designs such as telecom power, high-end audio amplifiers, large-size laser printers and LCD and PDP TV power supplies.  

The FSFR2100 features a zero voltage switching (ZVS) technique that dramatically reduces switching losses in MOSFETs and rectifiers. With this technique, this FPS switch can handle up to 200W without a heat sink and up to 450W with a heat sink. Compared to conventional hard-switch converter topologies, efficiency is improved by 10 percent and for applications such as PDP-TVs, efficiency reaches 97 percent. An additional advantage of the ZVS technique is the dramatically reduced switching noise – at least 5dB – compared to hard switching techniques. Offering burst operation function, the FSFR2100 brings standby power consumption below 1Watt to easily achieve the industry's 1 Watt Initiative.
Fairchild’s Green FPS switches offer designers the advantage of PWM IC and MOSFET integration along with high efficiency and reliability in an all-in-one solution, meeting demanding energy regulations affecting today’s power supply market. Using a proprietary valley switching technique, these products provide the highest levels of efficiency to meet standards as specified by the California Energy Commission (CEC), EU Code of Conduct and Group for Energy Efficient Appliances (GEEA).