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LTC1174 Datasheet(PDF) 14 Page - Linear Technology

Part # LTC1174
Description  High Efficiency Step-Down and Inverting DC/DC Converter
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1174 Datasheet(HTML) 14 Page - Linear Technology

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



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