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MIC2563A-1BSM

製品説明
仕様・特性

MIC2563A Micrel MIC2563A Dual-Slot PCMCIA/CardBus Power Controller General Description Features 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. • • The MIC2563A provides power management capability controlled by the PC Card logic controller. Voltage rise and fall times are well controlled. Medium current VPP and high current VCC output switches are self-biasing: no +12V supply is required for 3.3V or 5V output. • • • • • • • • • • • • The MIC2563A is designed for efficient operation. In standby (sleep) mode, the device draws very little quiescent current, typically 0.3µA. The device and PCMCIA port is protected by current limiting and overtemperature shutdown. Full crossconduction lockout protects the system power supplies during switching operations. 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 • • • • • • • • • • The MIC2563A is an improved version of the MIC2563, offering lower on-resistances and a VCC pull-down clamp in the OFF mode. It is available in a standard 28-pin SSOP, as well as an environmentally friendly (lead-free) 28-pin SSOP. All support documentation can be found on Micrel’s web site at www.micrel.com. 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 Typical Application 5V (opt) System Power 3.3V Supply 12V (opt) VPP IN VCC3 IN VCC5 IN (opt) (opt) A EN0 A EN1 A V CC5_EN PCMCIA Card Slot Controller VPP1 VPP2 PCMCIA Card Slot A VCC A V CC3_EN MIC2563 VPP1 B EN0 B EN1 B V CC5_EN VPP2 PCMCIA PCMCIA Card Slot Card Slot B VCC B V CC3_EN UL Recognized Component Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com March 2004 1 M9999-033004

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