TI Unveils 3-MHz DC/DC Converter Compatible with SmartReflex(TM) Technology for Li-Ion-Powered Electronics

TI Unveils 3-MHz DC/DC Converter Compatible with SmartReflex(TM) Technology for Li-Ion-Powered Electronics

May 10, 2006

800-mA Step-Down Circuit with I2C Interface in Tiny Chip Scale Package Enables Dynamic Voltage Scaling, Extends Battery Life

    DALLAS, May 10 /Xinhua-PRNewswire/ -- Texas Instruments
Incorporated (TI) (NYSE: TXN) introduced today a tiny,
high-performance power conversion integrated circuit (IC)
to work in tandem with processing platforms that use TI's
SmartReflex(TM) power management technology.  Designed to
extend battery life in 3G phones and other portable
electronics, the flexible converter features a 3.4-Mbps I2C
communications interface and ultra-fast transient response
from a tiny chip scale package. See: 
http://www.ti.com/sc06098 . 
  
    TI's TPS62350 synchronous, step-down DC/DC converter
supports up to 800 mA over the input voltage range of a
single-cell Lithium-Ion (Li-Ion) battery.  The device's
integrated I2C communications interface allows it to adjust
output voltage between 0.75 V and 1.53 V, efficiently
supporting TI's advanced digital signal processors (DSPs),
SmartReflex-enabled OMAP3430 and other processor core power
supplies in cell phones, PDAs, digital still cameras, as
well as handheld computers that use Intel's XScale(R)
processors. The TPS62350 can operate in a power-save mode
at light-load currents, and can be placed in a shutdown
mode where the power consumption is reduced to less than 1
¦ÌA. 

    The device's serial interface is compatible with
fast/standard and high-speed mode I2C specification, which
allows data transfer at up to 3.4 Mbps. The dynamic voltage
scaling feature allows the TPS62350 to adjust voltage levels
in 12.5-mV steps and seamlessly switch to an
efficiency-optimized light power factor mode (PFM), a
transient-optimized fast PFM mode or a forced PFM mode.

    First SmartReflex DC/DC Companion Chip

    The TPS62350 is optimized for today's smart phones with
SmartReflex power and performance technologies. SmartReflex
solutions, which leverage TI's deep sub-micron process
geometries, significantly reduce chip-level leakage power
dissipation. The technologies incorporate a broad range of
intelligent and adaptive hardware and software technologies
that dynamically control voltage, frequency and power based
on device activity, modes of operation, and process and
temperature variation.  
SmartReflex technology coordinates the power consumption
and performance of all major system components, including
multiple processing cores, hardware accelerators,
functional blocks and peripherals. A library of power
management cells enables a granular approach to system
partitioning of the portable device's power domains.
Finally, SmartReflex technologies provide an open software
framework that enables intelligent coordination among
lower-level hardware technologies and compatibility with
OS-based and third-party power management software. For
more information, see:  http://www.ti.com/smartreflex . 

    Smallest Solution Size

    The TPS62350's chip scale package and 3-MHz fixed
frequency allows a portable designer to implement low-cost
inductors and capacitors, which results in a complete power
conversion solution that saves extremely valuable board
space.

    Key Features of the TPS62350:

    88 Percent Efficiency at 3-MHz Operation
    800-mA Output Current at 2.7 Input Voltage
    Excellent Load and Line Transient 
    Two Percent PWM DC Voltage Accuracy
    35-ns Minimum On-Time
    28-¦ÌA Typical Quiescent Current
    I2C Compatible Interface up to 3.4 Mbps
    Pin-Selectable Output Voltage

    Available Today

    The TPS62350 is sampling now from TI and its authorized
distributors. Volume production is scheduled for June.  The
converter comes in a 12-pin, 2.2 mm x 1.4 mm chip scale
package and a 10-pin, 3 mm x 3 mm QFN package. Suggested
retail pricing is $2.05 in 1,000 piece quantities.
Evaluation modules of the TPS62350, application notes and
TI's comprehensive portfolio of power management ICs are
available through http://power.ti.com . 

    About Texas Instruments

    Texas Instruments Incorporated provides innovative DSP
and analog technologies to meet our customers' real world
signal processing requirements. 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-06098
                                            Literature
Response Center
                                            14950 FAA
Blvd.
                                            Fort Worth, TX 
76155
                                            1-800-477-8924

    Trademarks

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

    For information, please contact:

     Matt McKinney	
     Texas Instruments	
     Tel:   [phone]		
     Email: [e-mail]

     Jacqi Moore		
     GolinHarris		
     Tel:   [phone]		
     Email: [e-mail] 

SOURCE  Texas Instruments Incorporated