AnalogicTech Announces New Step-up DC/DC Converter for Ultraportable Systems Powered by Single, Dual AA Cells

AnalogicTech Announces New Step-up DC/DC Converter for Ultraportable Systems Powered by Single, Dual AA Cells

May 22, 2006

Device Combines High Efficiency, True Load Disconnect, Small Footprint

    SUNNYVALE, Calif., May 22 /Xinhua-PRNewswire/ --
Advanced Analogic Technologies Incorporated (AnalogicTech)
(Nasdaq: AATI), a developer of power management
semiconductors for mobile consumer electronic devices,
today announced the AAT1265, a new low-voltage step-up
converter for ultraportable applications. Designed for
systems running from single- or dual-cell Alkaline, NiMH,
or NiCd batteries, the AAT1265 extends AnalogicTech's
rapidly growing boost converter line by combining high
efficiency and True Load Disconnect in an extremely small
footprint.

    (Logo: 
http://www.newscom.com/cgi-bin/prnh/20050829/SFTU089LOGO )

    "Ultraportable systems running from single or dual
alkaline, NiMH, or NiCd cells need to boost voltage while
conforming to strict requirements for battery life and
system size," said Bill Weiss, Product Line Director
for AnalogicTech. "The AAT1265 maintains high
efficiency over the entire output current range, requires
no external compensation, and provides True Load Disconnect
-- all in a tiny 2.0x2.1mm SC70JW package. This device
delivers an ideal balance of high efficiency, essential
features, and small total solution size."

    The synchronous fixed frequency step-up converter
supplies 100mA to a 3.3V load from a single AA cell and
250mA from dual AA cells. The AAT1265 delivers efficiency
up to 93 percent and maintains high efficiency over the
entire load range. A 2MHz switching frequency helps
minimize solution footprint by enabling the use of
extremely small inductors and capacitors.

    True Load Disconnect

    Leakage current is a common concern with boost
converters. Typically these devices present a conduction
path from the input to the output via the body diode of the
P-channel MOSFET when the system is not active. To eliminate
such power loss, designers often use a load switch and
control circuitry to disconnect the load from the
converter. AnalogicTech's AAT1265 solves this problem with
the True Load Disconnect feature which disconnects the body
diode from the output. This feature extends battery life and
simplifies the system design by eliminating an external load
switch and control circuitry. 

    The AAT1265 also adds a variety of safety features to
preserve the integrity of the device including
short-circuit and over-current protection, inrush current
limit, and soft start. 

    Price and Availability

    Specified over the -40 degrees C to +85 degrees C
temperature range, the AAT1265 is available in a Pb-free,
compact 2.0x2.1mm SC70JW-8 package. The device sells for
$0.81 in 1000-piece quantities.  

    About AnalogicTech

    Advanced Analogic Technologies Incorporated
(AnalogicTech) is a supplier of Total Power Management(TM)
semiconductor solutions for mobile consumer electronic
devices, such as wireless handsets, notebook and tablet
computers, smartphones, digital cameras, wireless LAN, and
personal media players. The company focuses its design and
marketing efforts on the application-specific power
management needs of consumer, communications, and computing
applications in these rapidly evolving devices. AnalogicTech
also develops and licenses device, process, package, and
application-related technology. AnalogicTech is
headquartered in Sunnyvale, California, with offices in
South Korea, Taiwan, Hong Kong, Macau, Shanghai, Shenzhen,
Beijing, Japan, Sweden, UK, and France, as well as a
worldwide network of sales representatives and
distributors. The company is listed on the NASDAQ exchange
under the ticker symbol AATI. For more information, please
visit the AnalogicTech website: http://www.analogictech.com
. (AnalogicTech - G)

    For more information, please contact:

     Bill Weiss 
     AnalogicTech
     Tel:   [phone]
     Email: [e-mail]

     Matthew Quint 
     Quint Public Relations
     Tel:   [phone]
     Email: [e-mail]

SOURCE  Advanced Analogic Technologies Incorporated