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FAN5902 power management solution for improving the power efficiency of 3G W-CDMA RF power amplifiers

Posted: 12 Oct 2009     Print Version  Bookmark and Share

Keywords:FAN5902 W-CDMA  power amplifiers  power efficiency 

The application note provides the basics for implementing a Dynamic Voltage Scaling (DVS) power management technique with 3G W-CDMA RF power amplifiers to improve the overall power efficiency and increase the average talk-time in 3G handsets.

The DVS technique scales the power supply level of the RFPA output stage according to the output RF power level using a high-efficiency DC/DC converter, such as the FAN5902, specifically designed for that purpose.

This application note illustrates the advantages of the DVS technique and provides information to help designers understand its hardware and software implementation.

View the PDF document for more information.

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