Update: 30 September, 2023
This datasheet details the FAN5902, an 800mA buck converter designed for 3G RFPAs. It features high efficiency, low noise, synchronous, step-down DC-DC converter design, 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). An integrated bypass FET automatically connects to the output to turn off the converter when the input voltage is above 4.5V. The FAN5902 is available in a compact 12-lead MLP (0.8mm max) and 12-bump WLCSP package.
File format: PDF
Size: -
MD5 Checksum: D5C65DA8F61FBD647682062088D78EA4
Publication date: 12 July, 2012
Downloads: -
PDF Link: FAIRCHILD FAN5902 Manual PDF