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| MIC2566 Datasheet, PDF (9/10 Pages) Micrel Semiconductor – Single-Slot PC Card/CardBus Power Controller | |||
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MIC2566
Micrel
System
Power 5V
Supply
PCMCIA
Card Slot
Controller
VCC3IN VCC5IN
EN0
EN1
MIC2566
VCC5_EN
VCC3_EN
VPP1
VPP2 PCMCIA
Card Slot
VCC
Figure 3. PC Card Slot Power Control Application Without an Available 3.3V VCC
Note that VCC3 IN and VCC5 IN are driven together. The MIC2566 is powered by the VCC3 IN line. In this configuration, VCC OUT will be 5V
when either VCC3 or VCC5 is enabled from the logic table. Take advantage of the lower switch resistance of the VCC5 switch by using the
VCC5_EN control as your main VCC switch.
May 2003
9
MIC2566
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