FAN5902, FAN5902MPX, FAN5902UCX 800mA Buck Converter in 2.26mm x 1.5mm WLCSP for 3G RF Power Amplifiers

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Overview

FAN5902, 800mA, 6MHz 0.4-3.4V Buck converter for WDCMA/CDMA RFPAs with integrated 50mohm bypass Fet.

The FAN5902 is a high-efficiency, low-noise, synchronous, step-down DC-to-DC converter designed for powering the radio frequency power amplifiers (RFPA) in 3G mobile handsets and other mobile applications. It provides up to 800mA of output current over an input voltage range of 2.7V to 5.5V. The output voltage can be dynamically adjusted from 0.4V up to 3.4V, proportional to an analog input voltage ranging from 0.2V to 1.7V provided by an external DAC. This allows supplying the RFPA with the voltage level that provides optimum Power Added Efficiency (PAE).

Datasheet, Application Note, & EvaluationBoards

Datasheet		Application Note		Evaluation Boards
Download the short version of the FAN5902 datasheet. A detailed version of this datasheet is available upon request from your local sales office.		Download Application Note # 6088 - FAN5902 Power Management Solution for Improving the Power Efficiency of 3G W-CDMA RF Power Amplifiers		Please contact your local sales office to request FAN5902 Evaulation Boards