DESCRIPTION
The LT ®1313 is a member of Linear Technology Corporation’s PCMCIA driver/regulator family. It provides 0V, 3.3V, 5V, 12V and Hi-Z regulated power to the VPP pins of two PCMCIA card slots from a single unregulated 13V to 20V supply. When used in conjunction with a PC Card Interface Controller, the LT1313 forms a complete minimum component-count interface for palmtop, pen-based and notebook computers. The two VPP output voltages are independently selected by four logic compatible digital inputs which interface directly with industry standard PC Card Interface Controllers.

FEATURES
■ Digital Selection of 0V, VCC, 12V or Hi-Z
■ Output Current Capability: 120mA
■ 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
■ Output Capacitors: 1µF
■ Quiescent Current in Hi-Z or 0V Mode: 60µA
■ Independent VPP Valid Status Feedback Signals
■ No VPP Overshoot

APPLICATIONS
■ Notebook Computers
■ Palmtop Computers
■ Pen-Based Computers
■ Handi-Terminals
■ Bar-Code Readers
■ Flash Memory Programming