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LTC1174CS8 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC1174CS8
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

LTC1174CS8 Datasheet(HTML) 4 Page - Linear Technology

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LTC1174
LTC1174-3.3/LTC1174-5
1174fe
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
TYPICAL PERFOR A CE CHARACTERISTICS
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
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
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
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
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
Note 3: Guaranteed by design.
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
ELECTRICAL CHARACTERISTICS
Note 5: Current into Pin 6 only, measured without electrolytic input
capacitor.
Note 6: The off-time is wafer-sort trimmed.



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