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Power management IC addresses cost, space requirements

Posted: 23 Sep 2005 ?? ?Print Version ?Bookmark and Share

Keywords:atmel? power management ic? cmos? at73c211?

Atmel Corp. released a new power management standard product dedicated to the power supplies of handset add-on modules.

Manufactured using the company's low-cost mainstream CMOS process, the AT73C211 is designed to supply the digital, analog, interface, and, if required, the Radio Frequency (RF) and backup sections of add-on modules used in hand-held products such as PDAs and mobile phones. This new product integrates a high-performance dc-dc converter with integrated switches to supply digital cores at 1.9V, delivering up to 300mA. Additionally, three high-current Low Drop Out (LDO) linear voltage regulators supply analog, interface and RF portions of typical multimedia or wireless communication applications, with voltage from 2.7V to 2.8V and current up to 130mA. An ultra low-power LDO and a back-up battery or supercap charger are also provided to supply the Real Time Clock section that is usually present inside the application processor core. This achieves the lowest current consumption possible in standby mode. A reset generator and a voltage supervision function complete the integration of the AT73C211.

"Our AT73C211 is a first in its market," said Michele Casetta, marketing manager for Atmel's power management and audio analog companion PMAAC product line. "The integration of various power supply channels and an ultra-low-power backup supply channel with a power controller circuit for startup and shutdown, it makes it an ideal companion for every application where power consumption, cost and space are key."

The AT73C211 is housed in a 5-by-5mm, 25-ball ultra-thin BGA package, and is available mounted on a reference design board or as engineering samples. Production quantities are also available, with a reference price below $1 in large quantities.

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