Datasheet
14
LTC1472
1472fa
TYPICAL APPLICATIONS
U
Single Protected PCMCIA Power Management System
Using the LT1121 Powered from an Auxiliary Winding for 12V VPP Power
1µF
TANT
12V
121k200pF
56.2k
2N7002
+
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
IN
SHDN
PGND
OUT
ADJ
GND
LT1121CS8
3.3V
0.1µF
5V
0.1µF
CL-PD6710
VPP_V
CC
VPP_PGM
V
CC
_3
V
CC
_5
PCMCIA
CARD SLOT
VPP1
VPP2
V
CC
V
CC
0.1µF
10k
1µF
TANT
OFF, 3.3V, 5V
10µF
10V
5
+
+
0.1µF
8
1
2
0V, V
CC
, 12V, Hi-Z
3
6, 7
LTC1472 TA04
*SEE THE LTC1142 DATA SHEET FOR AN EXAMPLE OF A 3.3V/5V DUAL REGULATOR WITH AUXILIARY WINDING 15V OUTPUT
100k
5V
*13V TO 20V
(MAY BE FROM
AUXILIARY
WINDING)