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LM3209-G3 Datasheet(PDF) 1 Page - Texas Instruments |
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LM3209-G3 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 22 page  2.2 PH PVIN EN SGND PGND SW1 SW2 LM3209-G3 VOUT FB VCON RF PA VOUT: 0.6V to 4.2V 4.7 PF 10 PF VIN: 2.7V to 5.5V DAC PVIN LM3209-G3 www.ti.com SNVS626B – NOVEMBER 2009 – REVISED MARCH 2013 LM3209-G3 Seamless-Transition Buck-Boost Converter for Battery-Powered 3G/4G RF Power Amplifiers Check for Samples: LM3209-G3 1 FEATURES APPLICATIONS 2 • Operates From a Single Li-Ion Cell: 2.7V to • Battery-Powered 3G/4G RF PAs 5.5V • Cellular Phones • Adjustable Output Voltage: 0.6V to 4.2V • Portable Hard Disk Drives • 1A Maximum Load Capability for VIN ≥ 3.2V, • PDAs VOUT = 3.6V • 2.4 MHz (typ.) Switching Frequency DESCRIPTION The LM3209-G3 is buck-boost DC/DC converter • Seamless Buck-Boost Mode Transition designed to generate output voltages above or below • Fast Output Voltage Transition: 0.8V to 4.0V in a given input voltage. It is particularly suitable for 20 µs single-cell Li-ion batteries for portable applications. • High-Efficiency: 95% typ. at 3.7 VIN, 3.5 VOUT, at The LM3209-G3 operates at a 2.4 MHz typical 300 mA switching frequency in full synchronous operation • Cycle-by-cycle Over-Current Limit providing seamless transitions between buck and • Output Over-Voltage Clamp boost operating modes. • Internal Compensation The power converter topology needs only one external inductor and two capacitors. Five internal • 12-bump DSBGA Package power switches enable high overall efficiency. The LM3209-G3 is internally compensated for buck and boost modes of operation, thus providing an optimal transient response. The LM3209-G3 is available in an 12-bump lead-free DSBGA package of size 2.0 mm x 2.5 mm x 0.6 mm. TYPICAL APPLICATION CIRCUIT 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Número de pieza similar - LM3209-G3_15 |
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Descripción similar - LM3209-G3_15 |
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