Datasheet Texas Instruments LM3279TLX/NOPB — Ficha de datos

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Software LM3279
SNVS970C – MARCH 2013 – REVISED OCTOBER 2014 LM3279 Buck-Boost Converter With MIPI® RFFE Interface
for 3G And 4G RF Power Amplifiers
1 Features 1 3 Description В® 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 Voltage Transition: 0.8 V to 4 V in 20
Вµs
High-Efficiency: 95% typ. at VBATT = 3.7 V,
VOUT = 3.3 V, at 300 mA …