LTC1174
LTC1174-3.3/LTC1174-5
U
TYPICAL APPLICATIO S
Low Noise 3V Regulator
INPUT VOLTAGE
4V TO 12.5V
+
22µF*
6
25V
0.1µF
V
IN
×3
8
1
5
7
I
SHUTDOWN
PGM
3
LB
IN
V
FB
50µH†
V
6.8nF
LTC1174
OUT
2
LB
OUT
3V
SW
450mA
42k
30k
GND
4
100µF**
10V
×2
+
1N5818
AVX TPSD226K025
AVX TPSD105K010
*
**
1174 TA05
† COILTRONICS CTX50-4
Positive-to-Negative (–5V) Converter
INPUT VOLTAGE
4V TO 12.5V
*LOW-BATTERY INDICATOR
V
(V) I
4
6
8
10
(mA)
IN
OUT MAX
110
IS SET TO TRIP AT V = 4.4V
IN
+
+
10µF**
35V
6
**AVX TPSD106K035
***AVX TPSD105K010
D1= MBRS130LT3 (SURFACE MOUNT)
1N5818
0.1µF
4.7K
140
V
IN
×2
170
*LOW-
BATTERY
8
7
2
3
I
SHUTDOWN
PGM
200
† L1 SELECTION
12.5
235
INDICATOR
1
5
LB
LB
V
OUT
OUT
SW
280k
LTC1174HV-5
MANUFACTURER
PART NO.
CTX50-3
DT3316-473
CD54-470
GA10-472K
TYPE
IN
COILTRONICS
COILCRAFT
SUMIDA
SURFACE MOUNT
SURFACE MOUNT
SURFACE MOUNT
THROUGH HOLE
L1†
50µH
GND
4
100µF***
10V
43k
D1
GOWANDA
V
OUT
–5V
1174 TA06
1174fe
14
Linear Systems [ Linear Systems ]
