Fairchild Semiconductor FAN5902

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Fairchild Semiconductor FAN5902


This 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-to-DC converter, such as the FAN5902, specifically designed for that purpose.

Datasheet: File:Fa fan5902.pdf

Usage Guide: File:Fa fan5902 overview.pdf