ltc1174hv Linear Technology Corporation, ltc1174hv Datasheet - Page 15
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ltc1174hv
Manufacturer Part Number
ltc1174hv
Description
High Efficiency Step-down And Inverting Dc/dc Converter
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC1174HV.pdf
(20 pages)
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TYPICAL APPLICATIO S
D1
MANUFACTURER
COILTRONICS
COILCRAFT
SUMIDA
GOWANDA
*
†
***
D1
**
MANUFACTURER
COILTRONICS
COILCRAFT
SUMIDA
GOWANDA
AVX TPSD336K020
= MBRS140T3 (SURFACE MOUNT)
L1 SELECTION
*
†
1N5818
LOW-BATTERY INDICATOR
IS SET TO TRIP AT V
AVX TPSD336K020
AVX TPSD105K010
= MBRS140T3 (SURFACE MOUNT)
L1 SELECTION
1N5818
PART NO.
CTX50-3
DT3316-473
CD54-470
GA10-472K
PART NO.
CTX50-3
DT3316-473
CD54-470
GA10-472K
IN
= 4.4V
TYPE
SURFACE MOUNT
SURFACE MOUNT
SURFACE MOUNT
THROUGH HOLE
TYPE
SURFACE MOUNT
SURFACE MOUNT
SURFACE MOUNT
THROUGH HOLE
V
IN
4
5
6
7
(V)
U
I
OUT MAX
175
205
230
255
(mA)
+
Positive-to-Negative (– 3.3V) Converter
33µF*
16V
×2
220k
43k
Negative Boost Converter
INDICATOR
BATTERY
*LOW-
7
2
3
I
LB
LB
PGM
OUT
IN
LTC1174-3.3
4.7K
GND
V
SHUTDOWN
IN
6
4
7
2
3
V
OUT
SW
I
LB
LB
PGM
INPUT VOLTAGE
OUT
IN
LTC1174HV-3.3
4V TO 13.5V
LTC1174-3.3/LTC1174-5
8
1
5
GND
V
SHUTDOWN
INPUT VOLTAGE
IN
4
6
D1
–5V
V
OUT
SW
L1
50µH
†
8
1
5
310k
50k
D1
50µH
L1
0.1µF
†
0.1µF
+
+
0.1µF
33µF**
20V
100µF***
10V
×2
×2
LTC1174
1174 TA07
+
1174 TA08
33µF*
20V
×2
V
–3.3V
210mA
15
OUT
V
–9V
175mA
OUT
1174fe