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Xicor device targets portable multimedia apps

Posted: 11 Jul 2003 ?? ?Print Version ?Bookmark and Share

Keywords:xicor? power supply sequencer? x80200?

Xicor Inc. has announced a family of power supply sequencers designed for processor subsystems and multi-voltage systems in routers, cellular basestations, mass storage devices, and data acquisition equipment.

The X80200 family of devices provides power-up timing between primary and secondary voltage supplies with each device independently sequencing three separate voltage supply sources in various ramp-up and ramp-down timing schemes.

Consisting of five device options, the power supply sequencers support power supplies from 0.9V to 5V. Each device integrates three drivers to enable/disable external n-channel MOSFET switches, voltage monitors, power up/down sequencing logic and 2-wire bus interface circuits, and provides flexible sequencing for three power supplies.

Embedded into each device is a "core voltage up first, down last" sequencing logic scheme that is required by new microcontrollers, ASICs, and FPGAs.

Xicor will be offering an evaluation platform using three dc-dc regulators with the X80200 to demonstrate various power sequencing solutions. Production samples are available in 20-lead TSSOP packages and are priced at $2.40 each in 1,000-unit quantities.

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