DC to DC Power Supplies (Converters)
DC/DC Converters suit GSM phone applications.
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Press Release Summary:
Available in fixed or programmable versions, Models AAT1146 and AAT2512 are designed for portable systems powered by single cell lithium-ion/polymer batteries. AAT1146 step-down converter delivers output as low as 0.6 V. AAT2512 is dual-channel synchronous buck converter. Featuring integrated temperature protection, both devices maintain 27 µA quiescent current, deliver load current up to 400 mA, use 1.4 MHz switching frequency, and support input of 2.7-5.5 V.
Original Press Release:
AnalogicTech Unveils Two New DC/DC Converters for Mobile Applications
SUNNYVALE, Calif., Jan. 25 -- Advanced Analogic Technologies Incorporated (AnalogicTech) (NASDAQ:AATI), a developer of power management semiconductors for mobile consumer electronic devices, today introduced two new DC/DC converters for portable systems powered by single- cell lithium-ion/polymer batteries. Optimized for extremely fast transient response, the AAT1146 and AAT2512 step-down converters are ideally suited for GSM phone applications.
"The power supply supporting a GSM phone baseband chipset must almost instantaneously ramp from a few milliamps to full load, so extremely fast transient response is critical," notes David Brown, Senior Manager of Applications Engineering for AnalogicTech. "The AAT1146 and AAT2512 devices allow design engineers to easily meet these stringent requirements, while keeping the converter output in regulation."
Low Quiescent Current, High Efficiency
The AAT1146 step-down converter supports an input voltage range of 2.7V to 5.5V and output levels as low as 0.6V. The device delivers up to 400mA of load current and maintains a no-load quiescent current of just 27uA.
The AAT2512 is a dual-channel synchronous buck converter operating over the same 2.7V to 5.5V input range. Each regulator features independent input and enable pins. Each channel delivers 400mA of load current, and the device supports quiescent current levels of 27uA for light load conditions.
Both the AAT1146 and the AAT2512 are available in fixed or programmable versions with efficiency as high as 98%. The devices use a high 1.4MHz typical switching frequency to minimize the size of external components and keep switching losses low. They feature internal soft-start to eliminate output voltage overshoot, and integrated over-temperature and current limit protection. The two devices also add 100% duty cycle low-dropout operation.
Price and Availability
The AAT1146 and AAT2512 are rated across the -40 degrees C to +85 degrees C temperature range. The AAT1146 is available in a Pb-free, compact 2.0x2.1mm SC70JW-8 package and sells for $0.87 in 1000-unit quantities. The AAT2512 is offered in a Pb-free, TDFN33-12 package and sells for $1.64 in 1000-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: 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: Erik Ogren of AnalogicTech, +1-408-737-4600, or erikogren@analogictech.com
Web site: www.analogictech.com/
