LTC1174
LTC1174-3.3/LTC1174-5
U
TYPICAL APPLICATIO S
9V to 5V Pre-Post Regulator
INPUT
VOLTAGE
6V TO 12.5V
+
6
100µF*
16V
0.1µF
V
IN
3
2
7
8
1
5
SANYO OS-CON
*
**
D1
LB
LB
SHUTDOWN
IN
AVX TPSD476K016
= MBRS140T3 (SURFACE MOUNT)
1N5818
V
OUT
FB
†
V
LTC1174
L1 SELECTION
OUT
8
5
1
V
OUT
LT®1121-5
5V
I
SW
IN
PGM
L1†
MANUFACTURER PART NO.
TYPE
SURFACE MOUNT
DT3316-473 SURFACE MOUNT
CD54-470 SURFACE MOUNT
GA10-472K THROUGH HOLE
150mA
110k††
30.1k††
GND
4
COILTRONICS
COILCRAFT
SUMIDA
CTX50-3
50µH
+
+
1µF
SOLID
TANTALUM
SHUTDOWN
47µF**
16V, ×2
100pF
0.1µF
D1
GND
3
GOWANDA
†† USE 1% METAL FILM RESISTORS
1174 TA09
LCD Display Power Supply
INPUT
V
IN
(V)
I
4
(mA)
OUT MAX
20
VOLTAGE
4V TO 12.5V
5
6
25
56.2k††
6
30
7
35
V
IN
8
43
3
8
1
5
LB
SHUTDOWN
IN
2N2222
2N5210
9
50
10
11
12
55
7
2
50k††
60
I
PGM
V
FB
65
LTC1174
LB
SW
OUT
AVX TAJE106K050
AVX TPSD476K016
= MBRS140T3 (SURFACE MOUNT)
1N5818
*
1N914
GND
4
998k††
**
Si9435
D1
D1
0.1µF
V
OUT
† L1 SELECTION
–24V
+
47µF**
16V
×2
50mA AT
MANUFACTURER PART NO.
TYPE
SURFACE MOUNT
DT3316-104 SURFACE MOUNT
CD75-101 SURFACE MOUNT
GA10-103K THROUGH HOLE
0.1µF
V
IN
= 9V
10µF*
50V
L1†
100µH
COILTRONICS
COILCRAFT
SUMIDA
CTX100-3
+
×4
GOWANDA
1174 TA10
††
USE 1% METAL FILM RESISTORS
1174fe
16
Linear Systems [ Linear Systems ]
