Power Management IC suits ultra-low-power designs.
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Press Release Summary:
Specified over -40 to +85°C range, AAT2554 combines 500 mA battery charger, 250 mA step-down converter, and 300 mA low dropout (LDO) linear regulator in 3 x 4 mm package. Multifunctional device helps reduce product footprint and design complexity. All 3 functions use single-cell Lithium-ion battery as power source. With 1.5 MHz switching frequency, step-down converter functions using inductor less than 1 mm high and delivers full-rated output current with up to 96% efficiency.
Original Press Release:
AnalogicTech Introduces First Integrated Battery Charger, Step-Down Converter, and Linear Regulator in Tiny 3x4mm Footprint
Compact Device Simplifies Design of Ultra-Low-Power Portable Platforms
SUNNYVALE, Calif., Sept. 12 -- Advanced Analogic Technologies Incorporated (AnalogicTech) (NASDAQ:AATI), a developer of power management semiconductors for mobile consumer electronic devices, today announced the AAT2554, the industry's first power management IC to combine a 500mA battery charger, 250mA step-down converter, and 300mA low dropout (LDO) linear regulator in a tiny 3x4mm package. Part of AnalogicTech's rapidly expanding SystemPower(TM) product family, this new multi-function device offers designers of ultra-low-power products a highly compact power management solution that reduces product footprint and design complexity.
"A growing number of new portable electronic products, such as Bluetooth(R) headsets and handheld GPS devices, operate from a single Lithium-ion cell and must efficiently charge the battery and power a small microprocessor, its I/O, and other analog circuitry," said Bill Weiss, Product Line Director for AnalogicTech. "By combining these three different functions, specifically sized for low-power environments, into a single package, the AAT2554 helps designers meet stringent system footprint constraints, reduce component count, and simplify their design."
Optimized for Low Power
All three functions are optimized for ultra-low-power applications using a single-cell Lithium-ion battery as a power source. The battery charger operates across an input voltage of 4V to 6.5V, while the step-down converter and LDO operate across a 2.7V to 5.5V input range. As a complete constant current / constant voltage linear device, the battery charger delivers a programmable constant current up to 500mA. It features reverse blocking protection and high current accuracy, as well as voltage regulation, charge status, and charge termination functions.
Using a high 1.5MHz switching frequency, the step-down converter also helps minimize system footprint by supporting the use of extremely small external components. The converter functions using an inductor of less than 1mm in height, while delivering 250mA output current with efficiency as high as 96 percent.
The LDO integrated into the AAT2554 can supply up to 300mA output current. It features fast line and load transient response and a low 70uA quiescent current. To ensure safe device operation, the AAT2554 also features short-circuit, over-temperature, and current limit protection circuits.
ModularBCD Process Technology
The AAT2554 is the third production device introduced using AnalogicTech's ModularBCD process technology. Unlike conventional BCD technologies, ModularBCD uses a low-temperature, CMOS-like flow capable of achieving high yields while ensuring device performance and electrical isolation. By allowing AnalogicTech's designers to easily add or remove modules and devices for different voltages, this highly modular new process vastly simplifies analog and mixed-signal circuit reuse.
Price and Availability
Specified over the -40 degrees C to +85 degrees C temperature range, the AAT2554 is available now in a Pb-free, 16-pin, 3x4mm TDFN package. The device sells for $2.14 each in 1,000-unit 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: www.analogictech.com. (AnalogicTech - G)
NOTE: 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.
CONTACT: Bill Weiss of AnalogicTech, +1-408-737-4600, or bweiss@analogictech.com; or agency, Matthew Quint of Quint Public Relations, +1-650-599-9450, or mquint@quintpr.com, for AnalogicTech
