AnalogicTech's High Voltage Step-down Controller Maximizes 12V Adapter Design Flexibility
November 11 2008 - 7:55AM
PR Newswire (US)
Use of External MOSFETs Supports Both Synchronous and
Non-Synchronous Designs SANTA CLARA, Calif., Nov. 11
/PRNewswire-FirstCall/ -- Advanced Analogic Technologies, Inc.
(AnalogicTech(TM)) (NASDAQ:AATI), a developer of power management
integrated circuits, announced today the AAT1185, a single output,
step-down controller capable of providing high efficiency power
conversion for lower cost 12V adapters. Fabricated in
AnalogicTech's innovative Modular BCD process, the new controller
maximizes design versatility by offering both high and low-side
pins to drive a wide variety of external N-Channel MOSFETs.
Moreover, by supporting both fully synchronous and non-synchronous
operation, the new device allows designers to develop solutions for
such disparate applications as wireless LANs, DSL and cable modems,
notebook computers and set-top boxes with a broad range of
performance and power efficiency levels. (Logo:
http://www.newscom.com/cgi-bin/prnh/20050829/SFTU089LOGO) "Given
the diversity of 12V adapter applications today, designers need a
high degree of flexibility to optimize the solution for their
particular system," says CJ Zhang, product line vice president at
AnalogicTech. "By providing low and high side pins to drive
external MOSFETs instead of embedding the MOSFETs directly into the
IC, the AAT1185 controller gives designers the option of building
lower-cost, non-synchronous solutions using a Schottky diode on the
load side switch or building high efficiency synchronous solutions
using any of a wide array of power MOSFETs." Up to 10A Output The
AAT1185 single output step-down controller supports a wide 6V to
24V input range. Output voltage is adjustable from 0.8 to 5.5V.
Output current ranges from < 1A up to 10A. The controller
provides high and low-side pins to drive external N-Channel power
MOSFETs. Both drive pins are compatible with a wide range of
external MOSFETs allowing designers to use the AAT1185 to develop
control solutions for both low power and high power configurations.
The AAT1185's constant frequency voltage mode control allows
designers to optimize performance across the entire output voltage
and load range. A high 490 kHz switching frequency helps designers
keep external component size small and efficiency high by
supporting the use of a wide range of L/C filtering components.
External compensation allows the designer to optimize transient
response. Shutdown current is < 30 uA. To ensure device
integrity, the AAT1185 features internal soft start, programmable
over-current and over-temperature protection circuits. Price and
Availability Qualified across the -40 degrees C to +85 degrees C
temperature range, the AAT1185 is available in a low cost, Pb-free,
14-pin TSOPJW package. The IC sells for $0.79. in 1K quantities.
About AnalogicTech Advanced Analogic Technologies, Inc.
(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 Santa Clara, California and Macau, S.A.R., with
offices in China (Beijing, Shanghai and Shenzhen), Hong Kong,
Taiwan, Japan, South Korea, Sweden, France and United Kingdom, 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.
http://www.newscom.com/cgi-bin/prnh/20050829/SFTU089LOGO
http://photoarchive.ap.org/ DATASOURCE: Advanced Analogic
Technologies, Inc. CONTACT: Headquarters, Karolien Cools-Wittry of
AnalogicTech, +1-408-737-4600, karoliencw (at) analogictech.com; or
Agency, Matthew Quint of Quint Public Relations, +1-650-599-9450, ,
for AnalogicTech Web site: http://www.analogictech.com/
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