General Description

The MIC2563A dual-slot PCMCIA (Personal Computer Memory Card International Association) and CardBus power controller handles all PC Card slot power supply pins, both VCC and VPP. The MIC2563A switches between the three VCC voltages (0V, 3.3V and 5.0V) and the VPP voltages (OFF, 0V, 3.3V, 5V or 12.0V) required by PC Cards. The MIC2563A switches voltages from the system power supply to VCC and VPP. Output voltage is selected by two digital inputs each and output current ranges up to 1A for VCC and 250mA for VPP.

Features

• Single package controls two PC Card slots

• High-efficiency, low-resistance switches require no 12V bias supply

• No external components required

• Output current limit and overtemperature shutdown

• Ultra-low power consumption

• Complete dual-slot PC Card/CardBus VCC and VPP switch matrix in a single package

• Logic compatible with industry standard PC Card logic controllers

• No voltage shoot-through or switching transients

• Break-before-make switching

• Digital selection of VCC and VPP voltages

• Over 1A VCC output current for each section

• Over 250mA VPP output current for each section

• Lead-free 28-pin SSOP package

• UL recognized, file #179633

Applications

• Dual-slot PC card power supply pin voltage switch

• CardBus slot power supply control

• Data collection systems

• Machine control data input systems

• Wireless communications

• Bar code data collection systems

• Instrumentation configuration/datalogging

• Docking stations (portable and desktop)

• Power supply management

• Power analog switching