Power Management IC optimizes design flexibility.
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Press Release Summary:
Targeted at mobile devices with rapidly changing feature sets, AAT2504 allows designers to extend system functionality while benefiting from power management integration. This adjustable 3-channel regulator, supplied in Pb-free 20-pin QFN34 package, combines step-down converter with 2 low dropout linear regulators. It delivers up to 800 mA output current and supports 2.7-5.5 V input. Characteristics include 2 MHz switching frequency and rated efficiency over 95%.
Original Press Release:
AnalogicTech's Mini-Power Management Unit Maximizes Design Flexibility
Device Supports Feature Expansion by Combining Step-Down Converter With Two LDOs
SUNNYVALE, Calif., Nov. 27 -- Advanced Analogic Technologies, Inc. (AnalogicTech) (NASDAQ:AATI), a developer of power management semiconductors for mobile consumer electronic devices, announced today the AAT2504, an adjustable 3-channel regulator that combines a step-down converter with two low dropout linear regulators (LDOs). Targeted at mobile devices with rapidly changing feature sets, the AAT2504 allows designers to extend system functionality and still benefit from power management integration.
"As mobile systems continue to evolve and add functions, it is difficult for designers to find a single comprehensive PMU that will serve their system's continually changing power needs," notes Bill Weiss, product line director for AnalogicTech. "By offering a switching regulator and two LDOs on a single IC, this AAT2504 sub-PMU allows designers to add functionality to established platforms, such as Bluetooth capability to a Personal Navigation Device (PND) or HD radio capability to an MP3 player, and still take advantage of the cost, footprint and power savings of an integrated approach."
Low Input LDOs
The step-down converter delivers up to 800 mA of output current and supports an input range of 2.7V to 5.5V. A 2 MHz switching frequency helps minimize the size of external components. Efficiency exceeds 95%. By tying the MODE/SYNC pin high, designers can enable an optional PWM-only operation, which maintains constant frequency and low output ripple across all load conditions. Also the converter can be synchronized to an external clock via the MODE/SYNC pin.
The two LDOs on the AAT2504 operate across an input range of 1.8V to 5.5V, making them ideal for post-regulating from the step-down converter. Each LDO has an independent input and delivers up to 300 mA. Through an external feedback pin, designers can program each LDO's output voltage from 0.6V to 3.6V. A Power OK (POK) function provides an open drain output signal when LDOA is within regulation.
The AAT2504 features low 80 uA typical no-load quiescent current when all 3 regulators are on. The device also features under-voltage lockout and over-temperature protection.
Price and Availability
Qualified across the -40 C to +85 C temperature range, the AAT2504 is available in a Pb-free, 20-pin, QFN34 package. It sells for $1.75 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: 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.
CONTACT: Karolien Cools-Wittry of Advanced Analogic Technologies, Inc., +1-408-737-4600, karoliencw@analogictech.com; or Matthew Quint of Quint +Public Relations, +1-650-599-9450, mquint@quintpr.com, for Advanced Analogic Technologies, Inc.
