MUNICH, Germany, Nov. 14 /PRNewswire-FirstCall/ -- Advanced Analogic Technologies Incorporated (AnalogicTech) , a developer of power management semiconductors for mobile consumer electronic devices, announced today the AAT2550, a highly integrated power management IC for smart phones, portable media / music players, and other handheld computing devices. Targeted at portable systems powered by single-cell lithium ion / polymer batteries rated up to 1500 mAh, this highly integrated device saves PCB space by combining a 1A battery charger with two 600 mA step-down converters in a small 4 x 4 mm QFN package. This new device features a digital thermal control loop in the battery charger, which automatically reduces charge current when the demand on the power system exceeds its thermal limits.

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"One of the challenges of squeezing three relatively high powered blocks into a single small package is that if all three operate concurrently, they can generate more heat than the single package can handle," said Bill Weiss, Product Line Director at AnalogicTech. "By integrating our digital thermal control loop into the battery charger, the AAT2550 senses when the IC is self- heating and automatically throttles back the battery charge current to decrease the power being dissipated without impacting the buck converters and thus preventing a processor interrupt or system shut-down. Moreover, by determining the highest level of charge current the system can maintain, this feature plays a major role in minimizing charge time."

For systems that require charging from either AC or USB sources, AnalogicTech is also announcing the AAT2551 SystemPower IC. Similar to the AAT2550, this device features a 1A charger and two 600 mA buck converters. However, the charger in the AAT2551 offers dual-path AC adapter and USB charging. The USB path offers two user-programmable charge currents to support USB low and high charge levels. The charger in the AAT2551 also adds AnalogicTech's innovative charge reduction function that automatically reduces charge current only to the extent necessary to preserve the integrity of the USB host voltage. By allowing users to charge the battery with the maximum available current from the USB port while keeping the port voltage regulated, this feature ensures that the battery charger will not overload the USB port even when other system applications share power with the port supply, and that the battery charge time is minimized. The AAT2551 will be available in Q1 2007.

Three-in-One Solution

Both the AAT2550 and AAT2551 feature a constant current / constant voltage battery charger with the charge current programmable, via an external resistor, from 100mA to 1A. The charger offers an integrated pass device, reverse blocking protection, high accuracy, digital thermal regulation, charge status and charge termination. It also adds over-voltage, over-current and thermal protection.

To help reduce the size of external components, the two 600 mA step-down converters in the AAT2550/51 operate at a 1.4 MHz switching frequency. Both devices operate off a 2.7 to 5.5V input and feature independent input, enable and feedback pins. Each converter consumes just 27 uA of no-load quiescent current.

Price and availability

Both the AAT2550 and the AAT2251 are specified over the -40 degrees C to +85 degrees C temperature range. The AAT2550 is available in a Pb-free, thermally-enhanced QFN44-24 package and sells for $2.19 each in 1,000 unit quantities. The AAT2551 comes in a Pb-free, thermally-enhanced TQFN44-28 package and sells for $2.40 each in 1,000 unit quantities.

About AnalogicTech

Advanced Analogic Technologies Incorporated (AnalogicTech) is a supplier of power management semiconductors for mobile consumer electronic devices, such as wireless handsets, notebook and tablet computers, smartphones, digital cameras, and digital audio 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 is headquartered in Sunnyvale, California, with offices in Beijing, Hong Kong, Japan, Shanghai, Shenzhen, South Korea, Sweden, and Taiwan, as well as a worldwide network of sales representatives and distributors. For more information, please visit the AnalogicTech website: http://www.analogictech.com/. (AnalogicTech - G)

"Safe Harbor" Statement Under the Private Securities Litigation Reform Act of 1995

Statements contained in this release that are not historical facts are forward-looking statements, as that term is defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements, including financial projections and forecasts, involve risks and uncertainties that could cause AnalogicTech's actual results to differ materially from our current expectations. Factors that could cause AnalogicTech's results to differ materially from those set forth in these forward-looking statements include customers' cancellation or modification of their orders; our failure to accurately forecast demand for our products; the loss of, or a significant reduction in orders from, any of our significant customers; fluctuations in our operating results; our inability to develop and sell new products; defects in or failures of our products; the expense and uncertainty involved in our customer design-win efforts; the financial viability of the distributors of our products; consumer demand for cellular phones and other mobile consumer electronic devices; worldwide economic and political conditions, particularly in Asia; fluctuations in our costs to manufacture our products; our reliance on third parties to manufacture, test, assemble and ship our products; our ability to retain and attract key personnel; our ability to compete with our competitors; and our ability to protect our intellectual property rights and not infringe the intellectual property rights of others. Other factors that may cause our actual results to differ from those set forth in the forward- looking statements contained in this press release and that may affect our prospects in general are described in our filings with the Securities and Exchange Commission, including our Registration Statement on Form S-1 related to our initial public offering. AnalogicTech undertakes no obligation to update or revise forward-looking statements to reflect subsequent events or changed assumptions or circumstances.

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
billweiss@analogictech.com; or Matthew Quint of Quint Public Relations,
+1-650-599-9450, or mquint@quintpr.com

Web site: http://www.analogictech.com/