AnalogicTech Announces High Efficiency, Integrated Step-Down Converter, LDO for GSM Applications

AnalogicTech Announces High Efficiency, Integrated Step-Down Converter, LDO for GSM Applications

June 21, 2006

Fast Transient Response Meets Strict GSM Specs, Reduces Footprint

    SUNNYVALE, Calif., June 21 /Xinhua-PRNewswire/ --
Advanced Analogic Technologies Incorporated (AnalogicTech)
(Nasdaq: AATI), a developer of power management
semiconductors for mobile consumer electronic devices,
today announced the AAT2505, the latest addition to the
company's growing SystemPower(TM) family of power
management IC products. Combining a fast transient 600mA
step-down converter with a fast transient 300mA low dropout
(LDO) linear regulator, the AAT2505 offers a highly compact
solution optimized for popular GSM mobile phone
applications.

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

    "The power supply supporting a GSM handset
baseband chipset must wake up to full load within
microseconds," said Bill Weiss, Product Line Director
for AnalogicTech. "By integrating a fast transient
600mA step-down converter and a 300mA LDO, the AAT2505
forms a complete high-performance power supply solution for
GSM handset baseband core and I/O. In addition, the AAT2505
consumes 50% less PCB area than discrete solutions, and
avoids the arduous PCB layout overhead associated with
`mega' power management units."

    Longer Talk Time

    Low RDS(ON) integrated power switches on the AAT2505
step-down converter extend battery life and handset talk
time by supporting efficiency levels up to 98 percent. With
a wide output voltage range of 0.6V to VIN, the 600mA
converter also maintains a low 27uA no load quiescent
current. Its 1.4MHz switching frequency helps minimize the
size and cost of external components. Turn-on time is 150us
(typical).

    The LDO delivers up to 300mA of current and features an
independent input pin. Optimized to support the fast
line/load transient requirements of a GSM chipset, the LDO
features low quiescent current and a power-OK (POK) output
to signal when the output voltage is in regulation. 
    The AAT2505 also adds internal soft-start,
over-temperature, and current limit protection.

    Price and Availability

    Specified over the -40 degrees C to +85 degrees C
temperature range, the AAT2505 is immediately available in
a Pb-free, 12-pin TDFN33 package. The device sells for
$1.14 each 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)

    AnalogicTech and the AnalogicTech logo are trademarks
of Advanced Analogic Technologies Incorporated. All other
brand and product names appearing in this document are
registered trademarks or trademarks of their respective
holders.

    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

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