MIC2563A
5V
(opt)
Micrel
5V
(opt)
System
Power 3.3V
Supply
12V
(opt)
VPPIN VCC3IN VCC5IN
(opt)
System
Power 3.3V
Supply
12V
(opt)
VPP1
VPP2 PCMCIA
Card Slot
A
VCC
PCMCIA
Card Slot
Controller
VPP1
VPPIN VCC3IN VCC5IN
(opt)
(opt)
VPP1
VPP2 PCMCIA
Card Slot
A
VCC
EN0
EN1
VCC5_EN
VCC3_EN
A EN0
A EN1
A VCC5_EN
A VCC3_EN
MIC2563
PCMCIA
Card Slot
Controller
MIC2563
VPP1
B EN0
B EN1
B VCC5_EN
B VCC3_EN
PCMCIA
VPP2 PCMCIA
Card Slot
Card Slot
B
VCC
EN0
EN1
VCC5_EN
VCC3_EN
PCMCIA
VPP2 PCMCIA
Card Slot
Card Slot
B
VCC
EN0
EN1
MIC2558
EN0
EN1
2
Figure 3. PC Card slot power control application with
dual V
CC
(5.0V or 3.3V) and separate V
PP1
and V
PP2
.
Figure 4. Typical PC Card slot power control application
with dual V
CC
(5.0V or 3.3V). Note that V
PP1
and V
PP2
are
driven together.
5V
System
Power
Supply
12V
(opt)
VPPIN VCC3IN VCC5IN
(opt)
VPP1
VPP2 PCMCIA
Card Slot
A
VCC
A EN0
A EN1
A VCC5_EN
PCMCIA
Card Slot
Controller
A VCC3_EN
MIC2563
VPP1
B EN0
B EN1
B VCC5_EN
B VCC3_EN
PCMCIA
VPP2 PCMCIA
Card Slot
Card Slot
B
VCC
Figure 5. PC Card slot power control application without a 3.3V V
CC
supply. Note that V
CC3 IN
and V
CC5 IN
lines are driven
together. The MIC2563A is powered from the V
CC3 IN
line. In this configuration, V
CC OUT
will be 5V when either V
CC3
or V
CC5
is enabled.
1997
2-55
MICREL [ MICREL SEMICONDUCTOR ]
