PCMCIA Host and Card
Power Solutions – InfoCard 17
Host
Cards
IR LAN Cards
Type III
Hard Disk
Drive
Memory
FLASH
RF LAN
Cards
PCMCIA Power Switching Solutions
On-Card DC/DC Conversion Solutions
(See pages 3 and 4)
VCC: 3.3V or 5V
VPP: 0V, VCC, 12V, High-Z
PCMCIA
PC Card Host Power Interface
Linear Technology PCMCIA Product Family
DEVICE
LT®1312 Single PCMCIA VPP Driver/Regulator
LT1313 Dual PCMCIA VPP Driver/Regulator
LTC®1314 Single PCMCIA Switch Matrix
LTC1315 Dual PCMCIA Switch Matrix
LTC1470 Protected VCC 5V/3.3V Switch Matrix
DESCRIPTION
PACKAGE
8-Pin SOIC
MEMBER COMPANY
16-Pin SOIC*
14-Pin SOIC
24-Pin SSOP
8-Pin SOIC
16-Lead SOIC
(Narrow Body)
8-Lead SOIC
14-Lead SOIC
LTC1471 Dual Protected VCC 5V/3.3V Switch Matrix 16-Pin SOIC*
LTC1472 Protected VCC and VPP Switch Matrix
*Narrow Body
16-Pin SOIC*
24-Lead SSOP
(Packages Enlarged for Clarity)
LTC1472 Protected PCMCIA VCC and VPP Switching Matrix
■
Both VCC and VPP Switching in a
STEP-UP
REGULATOR
(LT1301)
3.3V OR 5V
Single Package
3.3V
TOP VIEW
(12V)
Built-In SafeSlotTM Current Limit and
Thermal Shutdown
OUT
■
V
SHDN
V
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC(OUT)
CC(OUT)
3V
IN
VPP
IN
IN
SHDN
5V
IN
5V
5V
3V
3V
IN
■
■
(OV,V , 12V, Hi-Z)
CC
16-Pin (Narrow) SOIC Package
Inrush Current Limited (Drives 150µF
Loads)
Continuous 12V Power Not Required
Extremely Low RDS(ON) NMOS
Switches
VPP1
VPP2
V
EN1
EN0
CC
VPP
OUT
IN
LTC1472
V
GND
V
CC
LTC1472CS
V
PCMCIA
CARD SLOT
DD
VPP
IN
CC(IN)
■
■
VPP EN0
VPP EN1
SHDN
VPP
OUT
V
V
PCMCIA
CARD SLOT
CONTROLLER
CC
V
VPP EN0
VPP EN1
GND
CC(IN)
(OFF, 3.3V, 5V)
CC
V
EN0
V
V
DD
CC
CC
CC(OUT)
■
V
EN1
Guaranteed 1A VCC Current and 120mA
VPP Current
S PACKAGE
16-LEAD PLASTIC SOIC
GND
■
■
■
■
■
■
LTC1472-TA01
1µA Quiescent Current in Standby
No External Components Required
Compatible with Industry Standard Controllers
Break-Before-Make Switching
Controlled Rise and Fall Times
Compatible with Cirrus Logic CL-PD6720, Intel 365-type and
Other PCMCIA Host Adaptor Chips
VCC Switch Truth Table
VPP Switch Truth Table
VCC ENO
VCC EN1
VCC(OUT)
VPP ENO
VPP EN1
VPP OUT
0
1
0
1
0
0
1
1
Off
0
0
1
1
0
1
0
1
0V
5V
VCC(IN)
VPPIN
Hi-Z
3.3V
Off
, LTC and LT are registered trademarks of Linear Technology Corporation.
SafeSlot is a trademark of Linear Technology Corporation.
Rev B 0295
Linear Technology Corporation • 1630 McCarthy Blvd. • Milpitas, CA 95035-7417 • (408) 432-1900 • www.linear-tech.com • Literature Only: 1-800-4-LINEAR