Datasheet Texas Instruments LM3209TLX-G3/NOPB — 数据表

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 FEATURES APPLICATIONS 1 2 Operates From a Single Li-Ion Cell: 2.7V to
5.5V
Adjustable Output Voltage: 0.6V to 4.2V
1A Maximum Load Capability for VIN ≥ 3.2V,
VOUT = 3.6V
2.4 MHz (typ.) Switching Frequency
Seamless Buck-Boost Mode Transition
Fast Output Voltage Transition: 0.8V to 4.0V in
20 Вµs
High-Efficiency: 95% typ. at 3.7 VIN, 3.5 VOUT, at
300 mA
Cycle-by-cycle Over-Current Limit
Output Over-Voltage Clamp
Internal Compensation
12-bump DSBGA Package Battery-Powered 3G/4G RF PAs
Cellular Phones
Portable Hard Disk Drives
PDAs DESCRIPTION
The LM3209-G3 is buck-boost DC/DC converter
designed to generate output voltages above or below …