LTC1174-3.3 Linear Technology, LTC1174-3.3 Datasheet - Page 13

• Manufacturer Part Number: LTC1174-3.3
• Description: High Efficiency Step-Down and Inverting DC/DC Converter
• Manufacturer: Linear Technology

TYPICAL
D1
**
MANUFACTURER
COILTRONICS
COILCRAFT
SUMIDA
GOWANDA
††
*
†
USE 1% METAL FILM RESISTORS
D1
SANYO OS-CON
AVX TPSD476K016
= MBRS140T3 (SURFACE MOUNT)
L1 SELECTION
MANUFACTURER
COILTRONICS
COILCRAFT
SUMIDA
GOWANDA
D1
**
MANUFACTURER
COILTRONICS
COILCRAFT
SUMIDA
GOWANDA
V
††
1N5818
*
*
†
†
IN
10
11
12
AVX TPSD336K020
= MBRS140T3 (SURFACE MOUNT)
L1 SELECTION
4
5
6
7
8
9
AVX TAJE106K050
AVX TPSD476K016
= MBRS140T3 (SURFACE MOUNT)
L1 SELECTION
USE 1% METAL FILM RESISTORS
(V)
1N5818
1N5818
I
OUT MAX
20
25
30
35
43
50
55
60
65
PART NO.
CTX50-3
DT3316-473
CD54-470
GA10-472K
A
(mA)
PART NO.
CTX100-3
DT3316-104
CD75-101
GA10-103K
PPLICATI
PART NO.
CTX50-3
DT3316-473
CD54-470
GA10-472K
TYPE
SURFACE MOUNT
SURFACE MOUNT
SURFACE MOUNT
THROUGH HOLE
TYPE
SURFACE MOUNT
SURFACE MOUNT
SURFACE MOUNT
THROUGH HOLE
6V TO 12.5V
TYPE
SURFACE MOUNT
SURFACE MOUNT
SURFACE MOUNT
THROUGH HOLE
VOLTAGE
INPUT
4V TO 12.5V
O
VOLTAGE
U
INPUT
S
3
2
7
LB
I
+
LB
PGM
+
OUT
IN
2
47 F**
16V
LTC1174
2
33 F*
16V
GND
V
SHUTDOWN
Negative Boost Converter
9V to 5V Pre-Post Regulator
IN
LCD Display Power Supply
4
6
V
SW
7
2
3
FB
0.1 F
I
LB
LB
PGM
8
1
5
3
7
2
OUT
IN
LTC1174-3.3
LB
I
LB
PGM
IN
OUT
D1
GND
V
SHUTDOWN
50 H
IN
L1
6
4
LTC1174
†
GND
V
SHUTDOWN
IN
V
6
4
+
+
OUT
SW
V
SW
8
1
5
100 F*
16V
100pF
2
47 F**
16V
FB
8
1
5
INPUT VOLTAGE
D1
–5V
LTC1174-3.3/LTC1174-5
0.1 F
110k
30.1k
L1
50 H
0.1 F
†
††
††
1N914
310k
50k
0.1 F
Si9035
L1
100 H
8
2N2222
2N5210
5
D1
0.1 F
†
V
SHUTDOWN
IN
LT1121-5
GND
1174 TA10
3
0.1 F
OUT
56.2k
+
50k
998k
1
LTC1174
4
10 F*
50V
††
+
††
+
††
2
33 F*
20V
V
–24V
50mA AT
V
V
5V
150mA
1 F
SOLID
TANTALUM
OUT
IN
OUT
13
V
–9V
175mA
1174 TA08
= 9V
OUT
1174 TA09