Raleigh, NC - austriamicrosystems touts its AS3603, an enhanced version of its AS3601 power management platform, as an industry benchmark for functionality and flexibility for mobile applications including cell phones, PDAs, and digital cameras. It features a DC/DC converter and ultra-low power LDOs, all programmable in 0.05-volt steps. The AS3603's feature set also includes a a driver for white LEDs, and a programmable 1-watt audio amplifier. The company says this chip takes up less than half the space of competing solutions, and is half the cost.
Its on-chip programmable battery charger, which supports all lithium-based and nickel-based batteries, provides constant-current, constant-voltage charging, top-off, trickle charge, and detects the presence of a battery. 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 enables the IC to fully adapt to the system configuration and optimally manage the power supply. The user can select any one of eight factory-preset sequences to optimize system start-up. 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, 6-by-6 mm, 0.4 mm pitch packaging or QFN48, 7-by-7 mm, 0.5 mm pitch packaging. It's priced at approximately $1.70 each in high volume production quantities.