LM3279 Datasheet - Texas Instruments

LM3279, Buck-Boost Converter

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3279 SNVS970C * MARCH 2013 * REVISED OCTOB

Features

* 1 MIPI® RFFE Digital Control Interface
* High-Efficiency PFM and PWM Modes with Internal Seamless Transition
* Operates from a Single Li-Ion Cell: 2.7 V to 5.5 V
* Adjustable Output Voltage:
* RFFE Digital Control: 0.4 V to 4.2 V
* Analog Control: 0.5

Applications

* 3G/4G Smartphones
* RF PC Cards
* Tablets, eBooks Readers
* Battery-Powered RF Devices Simplified Schematic 1.5 ÛH VBATT: 2.7V to 5.5V 10 ÛF X SW1 SW2 PVIN SVIN VOUT FB EN GPO0 GPO1 DGND LM3279 VCON SGND VIO SDATA SCLK PGND RF Control Bits VOUT: 0.4V to

LM3279-etcTI.pdf