austriamicrosystems expands configurable PMIC family with devices targeting Li-Ion battery based mobile products

AS3710/11 PMICs enable quick configuration and support for most processors

Unterpremstätten, (PresseBox) - austriamicrosystems (SIX: AMS), a leading global designer and manufacturer of high-performance analog ICs, announced two new members of its Power Management IC (PMIC) family. These devices feature essential power management building blocks and flexibility to provide a complete power solution for the next generation of tablets, media players and portable gaming consoles. The versatile startup configuration programming capability allows the AS3710/11 to be adapted to various processors. These features can also be used to adapt for last minute changes or fine tuning without a design re-spin.

Both the AS3710 and AS3711 include three DC-DC 4 MHz step-down converters, two DC-DC step-up converters, eight LDOs, four GPIOs, a 1.5A charger, an I2C interface, three current sinks, an ADC, a watchdog timer, and a real-time clock (RTC). The AS3710 PMIC adds a third booster whereas the AS3711 adds a 3A step-down converter. Configuration options include selecting linear or switching charging based on maximizing power efficiency or minimizing space and cost.

The outputs of the converters are all programmable. Two of the eight LDOs are low noise, well suited for noise critical RF modules. The step-up converters can be used to power peripherals that require voltages higher than the Li-Ion battery, such as class D amplifiers, USB OTG/Host, OLED displays and LED backlight displays. Three highvoltage current sinks are included for LCD backlighting. The programmable current level is adjustable in 150 ?A increments from 0 to 40 mA. In addition, PWM input options offer a simple way of implementing dynamic luminance scaling (DLS).

"Our lead customers needed a highly versatile PMIC to accommodate design additions, as well as to have one power design for a platform of products," said Peter Kammerlander, Product Manager at austriamicrosystems. "The flexible configuration capability of the AS3710/11 PMICs allows developers to react quickly to late changes. Even changing or upgrading the processor will not cause a redesign of the power management section."

Each device is housed in a space saving 7x7 mm QFN56 package, operate from a single 2.7 V to 5.5 V supply and are specified over a -40 to +85°C temperature range.

Price and availability

The AS3710/11 PMICs are available now and are priced at $3.80 in 1000-piece quantities. A demo board with a software utility for controlling the on-board registers and configuring the start-up sequence is also available to speed development time. For more information on the AS3710/11 Power Management ICs and the demo board, please visit www.austriamicrosystems.com/PMIC/AS3710-11

ams AG

years of analog design know-how with state-of-the-art manufacturing and test facilities and production partnerships. austriamicrosystems leverages its expertise in low power and high accuracy to provide industry-leading standard and customized analog products. Operating worldwide with more than 1,200 employees, austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces and mobile infotainment in its markets Consumer & Communications, Industry & Medical and Automotive. Through the combination with TAOS, a world leader in advanced light sensors, austriamicrosystems has expanded its innovative sensor offering for growth markets such as mobile devices. austriamicrosystems is listed on the SIX Swiss Exchange in Zurich (ticker: AMS). For more information, please visit www.austriamicrosystems.com

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