Step-Down Converter targets GSM applications.
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Press Release Summary:
Combining 600 mA step-down converter with 300 mA LDO linear regulator, Model AAT2505 offers solution for GSM mobile phones. Low RDS(ON) integrated power switches extend battery life and handset talk time by supporting efficiency levels up to 98%. With output voltage of 0.6 VIN, converter maintains low 27 µA no load quiescent current. Housed in 12-pin lead-free package, unit features 1.4 MHz switching frequency, 150 µs turn-on time, and temperature range of -40 to +85°C.
Original Press Release:
AnalogicTech Announces High Efficiency, Integrated Step-Down Converter, LDO for GSM Applications
Fast Transient Response Meets Strict GSM Specs, Reduces Footprint
SUNNYVALE, Calif., June 21 / -- Advanced Analogic Technologies Incorporated (AnalogicTech) (NASDAQ:AATI), a developer of power management semiconductors for mobile consumer electronic devices, today announced the AAT2505, the latest addition to the company's growing SystemPower(TM) family of power management IC products. Combining a fast transient 600mA step-down converter with a fast transient 300mA low dropout (LDO) linear regulator, the AAT2505 offers a highly compact solution optimized for popular GSM mobile phone applications.
"The power supply supporting a GSM handset baseband chipset must wake up to full load within microseconds," said Bill Weiss, Product Line Director for AnalogicTech. "By integrating a fast transient 600mA step-down converter and a 300mA LDO, the AAT2505 forms a complete high-performance power supply solution for GSM handset baseband core and I/O. In addition, the AAT2505 consumes 50% less PCB area than discrete solutions, and avoids the arduous PCB layout overhead associated with 'mega' power management units."
Longer Talk Time
Low RDS(ON) integrated power switches on the AAT2505 step-down converter extend battery life and handset talk time by supporting efficiency levels up to 98 percent. With a wide output voltage range of 0.6V to VIN, the 600mA converter also maintains a low 27uA no load quiescent current. Its 1.4MHz switching frequency helps minimize the size and cost of external components. Turn-on time is 150us (typical).
The LDO delivers up to 300mA of current and features an independent input pin. Optimized to support the fast line/load transient requirements of a GSM chipset, the LDO features low quiescent current and a power-OK (POK) output to signal when the output voltage is in regulation.
The AAT2505 also adds internal soft-start, over-temperature, and current limit protection.
Price and Availability
Specified over the -40 degrees C to +85 degrees C temperature range, the AAT2505 is immediately available in a Pb-free, 12-pin TDFN33 package. The device sells for $1.14 each in 1000-piece 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)
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;
Web site: www.analogictech.com/
