Datasheet

12
LTC1472
1472fa
TYPICAL APPLICATIONS
U
Dual Protected PCMCIA Power Management System
3V
IN
3V
IN
SHDN
5V
IN
V
DD
VPP EN0
VPP EN1
V
CC
EN0
V
CC
EN1
VPP
IN
VPP
OUT
V
CC(IN)
V
CC(OUT)
V
CC(OUT)
GND GND
LTC1472
V
IN
SEL
SHDN
PGND
SW
SENSE
I
LIM
GND
LT1301
3.3V
0.1µF
3.3V or 5V
5V
0.1µF
PCMCIA
CARD SLOT
VPP1
VPP2
V
CC
V
CC
0.1µF
10k
1µF
TANT
OFF, 3.3V, 5V
0.1µF
0.1µF
47µF
16V
TANT
12V
100µF
10V
33µH*
COILCRAFT
DO3316-333
3
2
10k
+
+
+
6
7
4
5
NC
MBRS130LT3
0V, V
CC
, 12V, Hi-Z
1
8
LTC1472-TA02
3V
IN
3V
IN
SHDN
5V
IN
V
DD
VPP EN0
VPP EN1
V
CC
EN0
V
CC
EN1
VPP
IN
VPP
OUT
V
CC(IN)
V
CC(OUT)
V
CC(OUT)
GND GND
LTC1472
3.3V
0.1µF
5V
0.1µF
B_VPP_V
CC
B_VPP_PGM
B_V
CC
_3
B_V
CC
_5
PCMCIA
CARD SLOT
VPP1
VPP2
V
CC
V
CC
0.1µF
10k
1µF
TANT
OFF, 3.3V, 5V
10k
+
0.1µF
0V, V
CC
, 12V, Hi-Z
CL-PD6720
A_VPP_V
CC
A_VPP_PGM
A_V
CC
_3
A_V
CC
_5
*FOR 5V TO 12V CONVERSION USE 10µH, COILCRAFT DO1608-103. SEE LT1301 DATA SHEET
FOR MORE DETAILED INFORMATION ON INDUCTOR AND CAPACITOR SELECTION.