LT1312 Datasheet PDF | Linear Technology

Linear Technology LT1312

The LT1312 provides 0V, 3.3V, 5V, 12V and Hi-Z regulated power to the VPP pin of a PCMCIA card slot from a single unregulated 13V to 20V supply. When used in conjunction with a PC card interface controller, the LT1312 forms a complete minimum component-count interface for palmtop, pen-based and notebook computers. The VPP output voltage is selected by two logic compatible digital inputs which interface directly with industry standard PC card interface controllers.

Part No.	LT1312
Datasheet	LT1312 Download
Manufacturer	Linear Technology
Description	Single PCMCIA VPP Driver/Regulator
Buy	Stock & Price

FEATURES

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DESCRIPTION

The LT ® 1312 is a member of Linear Technology Corporation’s family of PCMCIA drivers/regulators. Automatic 3.3V to 5V switching is provided by an internal comparator which continuously monitors the PC card VCC supply and automatically adjusts the regulated VPP output to match VCC when the VPP = VCC mode is selected. An open-collector VPP VALID output is driven low when VPP is in regulation at 12V. The LT1312 is available in an 8-pin SO package. , LTC and LT are registered trademarks of Linear Technology Corporation. Digital Selection of 0V, VCC, 12V or Hi-Z 120mA Output Current Capability Internal Current Limiting and Thermal Shutdown Automatic Switching from 3.3V to 5V Powered from Unregulated 13V to 20V Supply Logic Compatible with Standard PCMCIA Controllers 1µF Output Capacitor 30µA Quiescent Current in Hi-Z or 0V Mode VPP Valid Status Feedback Signal No VPP Overshoot 8-Pin SO Packaging U

APPLICATIONS

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