Raleigh, N.C. - Austriamicrosystems has unveiled the AS3603, an enhanced version of its AS3601 power management platform. Providing mobile device manufacturers with a truly versatile power management IC, this integrated real-time programmable power management IC delivers excellent price/performance characteristics, consuming 60% less PCB space and costing 50% less than comparable solutions.
The AS3603 features a highly efficient DC-DC down-converter and ultra-low power LDOs, all programmable in 0.05 V steps, to ensure superior operating time, added Harrer.
The AS3603's unique feature set also includes a highly efficient driver for white LEDs and a programmable 1W audio amplifier ideal for hands-free mobile phone applications " all on a single chip. Mono to differential conversion of the audio signal, which has been integrated into the AS3603, delivers high power output for the hands-free function while eliminating the need for costly, space-consuming external components.
The on-chip programmable battery charger, which supports all lithium-based and nickel-based batteries, provides a wide range of functions including constant current, constant voltage and trickle charge. Further enhanced features include top-off charging, by either pulse charging or constant voltage charging, detection of battery presence and bypassing the charge controller.
When used in cordless telephone designs, the AS3603 enables the handset to be operated from the AC adapter without a battery.
Real-time software control of all functions and regulators provides flexibility, enabling the IC to fully adapt to the system configuration and to optimally manage the power supply. Using a single external resistor, any one of eight factory-preset sequences can be selected to optimize the start-up procedure. Custom start-up sequences can be mask-programmed to meet the demands of a variety of product designs and end markets.
The AS3603 is available in a QFN48, 6x6mm, 0.4mm pitch packaging or QFN48, 7x7mm, 0.5mm pitch packaging and is priced at approximately $1.70 in high volume production quantities.
For more information, contact austriamicrosystems at 8601 Six Forks Rd., Suite 400, Raleigh, N.C. 27615, or call 919-676-5292, or visit the web site at www.austriamicrosystems.com.