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LTC1174CS8 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC1174CS8
Description  High Efficiency Step-Down and Inverting DC/DC Converter
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1174CS8 Datasheet(HTML) 4 Page - Linear Technology

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4
LTC1174
LTC1174-3.3/LTC1174-5
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
LOAD CURRENT (mA)
1
100
95
90
85
80
75
70
10
100
1174 G01
200
VIN = 6V
VIN = 9V
L = 50
µH
VOUT = 5V
IPGM = 0V
COIL = CTX50-4
Efficiency vs Load Current
Efficiency vs Load Current
LOAD CURRENT (mA)
1
10
100
1174 G02
400
100
95
90
85
80
75
70
L = 50
µH
VOUT = 5V
IPGM = VIN
COIL = CTX50-4
VIN = 6V
VIN = 9V
LOAD CURRENT (mA)
1
10
100
1174 G03
500
100
95
90
85
80
75
70
L = 100
µH
VOUT = 5V
IPGM = VIN
COIL = CTX100-4
VIN = 6V
VIN = 9V
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
LOAD CURRENT (mA)
1
10
100
1174 G04
300
100
90
80
70
60
50
L = 50
µH
VOUT = 3.3V
IPGM = 0V
COIL = CTX50-4
VIN = 5V
VIN = 9V
Efficiency vs Load Current
LOAD CURRENT (mA)
1
10
100
1174 G05
500
100
90
80
70
60
50
L = 50
µH
VOUT = 3.3V
IPGM = VIN
COIL = CTX50-4
VIN = 5V
VIN = 9V
LOAD CURRENT (mA)
1
10
100
1174 G06
500
100
90
80
70
60
50
L = 100
µH
VOUT = 3.3V
IPGM = VIN
COIL = CTX100-4
VIN = 5V
VIN = 9V
Line Regulation
Switch Leakage Current
vs Temperature
TEMPERATURE (°C)
0
180
160
140
120
100
80
60
40
20
0
40
80
100
1174 G08
20
60
VIN = 13.5V
INPUT VOLTAGE (V)
5
14
1174 G09
7
9
12
95
94
93
92
91
90
89
88
87
68
10
11
13
L = 100
µH
L = 50
µH
VOUT = 5V
IPGM = 0V
ILOAD = 75mA
CORE = CTX (Kool M
µ®)
Efficiency vs Input Voltage
Kool M
µ® is a registered trademark of Magnetics, Inc.
INPUT VOLTAGE (V)
0
6
4
2
0
–2
–4
–6
–8
–10
–12
–14
4
8
10
1174 G07
2
6
12
14
ILOAD = 100mA
IPGM = 0V



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