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AnalogicTech charge pump eyes portable apps

Posted: 14 Aug 2002 ?? ?Print Version ?Bookmark and Share

Keywords:advanced analogic technologies? analogictech? aat3110? total power management? power management ic?

Advanced Analogic Technologies Inc. has expanded its Total Power Management IC product family with the introduction of the AAT3110 regulated charge pump designed for portable, battery-powered applications.

The device is a MicroPower switched-capacitor voltage converter that is claimed to reduce board space while delivering a regulated 14 percent output. It operates in an output-regulated voltage-doubling mode and uses a pulse-skipping technique to provide a regulated output from a varying input supply. No external inductor is required for operation.

"The AAT3110 charge pump can help designers of cellphones, portable communications devices, PDAs, and other handheld electronics meet new performance requirements while minimizing size and maximizing battery life," says Jan Nilsson, VP of marketing at AnalogicTech.

"As an example, this device is particularly appropriate for the growing number of handheld portable devices which are integrating white LEDs for backlighting to support the migration to color displays and enhanced graphics capability," he explained.

To support battery-powered applications, the AAT3110 operates over a 2.7V to 5V input range and draws 135A during operation and <15A during shutdown. It operates at a 750kHz frequency and is offered in a 6-pin SOT23 or 8-pin SC70JW package. A thermal management circuit is also provided for continuous short circuit conditions.

The AAT3110 is priced at $1.22 for OEM quantities of 1,000-units per month.

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