MIC2562A Datasheet, PDF (9/9 Pages) Micrel Semiconductor – PCMCIA/CardBus Socket Power Controller

MIC2562A
5V
System
Power 3.3V
Supply
12V
PCMCIA
Card Slot
Controller
VPPIN VCC3IN VCC5IN
(opt)
EN0
EN1
MIC2562
VCC5_EN
VCC3_EN
VPP1
PCMCIA
Card Slot
VPP2
VCC
5V
System
Power 3.3V
Supply
12V
(opt)
PCMCIA
Card Slot
Controller
Micrel
VPPIN VCC3IN VCC5IN
(opt)
EN0
EN1
MIC2562
VCC5_EN
VCC3_EN
VPP1
VPP2 PCMCIA
Card Slot
VCC
VPP _IN VDD VCC
EN0
VPP OUT
EN1 _MIC2557
Figure 3. MIC2562A PC Card slot power control applica-
tion with dual V_CC (5V and 3.3V) and separate V_PP1 and
V_PP2.
Figure 4. Typical MIC2562A PC Card slot power control
application with dual V_CC (5V and 3.3V). Note that V_PP1 and
V_PP2 are driven together.
5V
System
Power
Supply
12V
(opt)
PCMCIA
Card Slot
Controller
VPPIN VCC3IN VCC5IN
(opt)
EN0
EN1
MIC2562
VCC5_EN
VCC3_EN
VPP1
VPP2 PCMCIA
Card Slot
VCC
Figure 5. PC Card slot power control application without an available 3.3V V_CC. Note that V_{CC3 IN} and V_{CC5 IN} are driven
together. The MIC2562A is powered by the V line. In this configuration, V will be 5V when either V or V
CC3 IN
CC OUT
CC3
CC5
is enabled from the logic table. Take advantage of the lower switch resistance of the V_CC5 switch by using the V_{CC5_EN}
control as your main V_CC switch.
MIC2562A
62
July 1999