LM3279 Datasheet Buck-boost Converter

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3279 SNVS970C – MARCH 2013 – REVISED OCTOBER 2014 LM3279 Buck-Boost Converter With MIPI® RFFE Interface for 3G And 4G RF Power.

Datasheet Details

Part number	LM3279
Manufacturer	Texas Instruments
File Size	1.58 MB
Description	Buck-Boost Converter
Datasheet	LM3279-etcTI.pdf

General Description

The LM3279 is a buck-boost DC/DC converter designed to generate output voltages above or below a given input voltage and is particularly suitable for Power Amplifiers operating from single-cell Li-Ion batteries in portable applications.

The LM3279 has four modes of operation: Pulse Width Modulation (PWM), Pulse Frequency Modulation (PFM), standby, and shutdown.

During normal conditions, the LM3279 operates in full synchronous PWM mode at 2.4-MHz typical switching frequency, providing seamless transitions between buck and boost operating regimes.

Key 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 V to 4.2 V.
1-A Maximum Load Capability for VBATT ≥ 3.2 V, VOUT = 3.6 V.
2.4-MHz (typ. ) Switching Frequency.
Seamless Buck-Boost Mode Transition.
Fast Output Volta.

LM3279 Distributor

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