TI Power Management Chip Extends Battery Life in Li-Ion Powered Multimedia Devices

TI Power Management Chip Extends Battery Life in Li-Ion Powered Multimedia Devices

April 07, 2006

Buck-Boost DC/DC Converter Delivers up to 96 Percent Efficiency over a Wide Input Voltage Range Down to 1.8 V

    DALLAS, April 7 /Xinhua-PRNewswire/ -- Texas
Instruments Incorporated (TI) (NYSE: TXN) announced today a
buck-boost power management integrated circuit (IC) that
helps extend battery life in smart phones, digital still
cameras and other single-cell, lithium-ion (Li-Ion) powered
multimedia devices.  The DC/DC converter delivers up to 96
percent efficiency over a wide input voltage range of 1.8 V
to 5.5 V, while generating an output current up to 1.2 A. 
See: www.ti.com/tps63000-pr.    

    "Portable designers continue to face an uphill
battle when it comes to getting more out of their
battery," said Dave Heacock, vice president of TI's
portable power management business.  "Texas
Instruments continues to work closely with the top 3G
wireless handset, digital still camera and other portable
electronics makers to ensure they are maximizing all of the
potential energy in a Li-Ion battery and meet consumers'
appetites for extended battery life." 

    TI's new TPS63000 buck-boost converter provides up to
28 percent greater run-time compared to a standard
high-efficiency buck converter with a 3.3-V output - all
from a space-saving 3 x 3 mm2 QFN package.  Based on a
fixed frequency, pulse-width modulation (PWM) technique,
the device uses synchronous rectification to maintain high
efficiency to support today's single-cell Li-Ion batteries.
 In addition, the TPS63000's ability to support input
voltages as low as 1.8 V allows designers to implement
newer, denser lithium-based battery chemistries in TI
OMAP(TM) processor-based handsets and other multimedia
applications.

    Efficiently delivering step-up and step-down DC/DC
conversion with adjustable output voltages down to 1.2 V,
the device offers an extremely low quiescent current of
less than 30 ¦ÌA, and advanced power savings and voltage
protection features.  The TPS63000 enters a power save mode
at low power operation, which can be disabled, forcing the
converter to operate at a fixed switching frequency.  The
converter also can be disabled to minimize battery drain.
During shutdown, the load is completely disconnected from
the battery.

    Smallest Solution Size

    The TPS63000, which comes in a tiny 3 mm x 3 mm, 10-pin
QFN PowerPAD(TM) package, operates in a fixed frequency of
1.5-MHz that allows a portable designer to implement a 2.2
¦ÌH inductor.  TI also plans to introduce future buck-boost
converters in the TPS63000 family in ultra-small chip scale
packages. 

    Pricing and Availability

    The TPS63000 is available in volume production from TI
and its authorized distributors.  Suggested retail pricing
is $2.75 in 1,000 piece quantities. Evaluation modules of
the TPS63000, application notes and TI's new Q2 Power
Management Selection Guide are available at
www.ti.com/tps63000-pr.   

    About Texas Instruments

    Texas Instruments Incorporated provides innovative DSP
and analog technologies to meet our customers' real world
signal processing requirements. In addition to
Semiconductor, the company's businesses include Sensors
& Controls, and Educational & Productivity
Solutions.  TI is headquartered in Dallas, Texas, and has
manufacturing, design or sales operations in more than 25
countries. 

    Texas Instruments is traded on the New York Stock
Exchange under the symbol TXN.  More information is located
on the World Wide Web at:  http://www.ti.com .

    Please refer all reader inquiries to:

     Texas Instruments Incorporated
     Semiconductor Group, SC-06069
     Literature Response Center
     14950 FAA Blvd.
     Fort Worth, TX  76155
     1-800-477-8924

    Trademarks

    PowerPad and OMAP are trademarks of Texas Instruments. 
All registered trademarks and other trademarks belong to
their respective owners.

    For more information, please contact:

     Media Contacts:
     Matt McKinney
     Tel:   [phone]
     Email: [e-mail]

     Heather Mills
     Tel:   [phone]
     Email: [e-mail] 

SOURCE  Texas Instruments Incorporated