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LT1941 Datasheet(PDF) 5 Page - Linear Technology

Part # LT1941
Description  Triple Monolithic Switching Regulator
PDF  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1941 Datasheet(HTML) 5 Page - Linear Technology

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LT1941
5
1941fb
TYPICAL PERFORMANCE CHARACTERISTICS
SW1 Current Limit vs Duty Cycle
SW2 Current Limit vs Duty Cycle
BOOST2 Pin Current
SW1 VCESAT
SW2 VCESAT
SW3 VCESAT
Efficiency, VOUT1 = 1.8V
Efficiency, VOUT2 = 3.3V
Efficiency, VOUT3 = –12V
LOAD CURRENT (A)
0
70
80
2
1941 G01
60
50
0.5
1
1.5
2.5
90
VIN = 5V
TA = 25°C
LOAD CURRENT (A)
0
50
60
70
80
90
0.25
0.5
0.75
1
1941 G07
1.25
1.5
VIN = 5V
TA = 25°C
LOAD CURRENT (mA)
0
50
60
70
80
90
50
100
150
200
1941 G08
250
300
VIN = 5V
TA = 25°C
SWITCH CURRENT (A)
0
0
100
200
300
400
500
0.5
1
1.5
2
1941 G02
2.5
3
TA = 25°C
DUTY CYCLE (%)
0
3.0
4.0
5.0
80
1941 G03
2.0
1.0
2.5
3.5
4.5
1.5
0.5
0
20
40
60
100
TYPICAL
MINIMUM
DUTY CYCLE (%)
0
0
0.5
1.0
1.5
2.0
2.5
3.0
20
40
60
80
1941 G06
100
TYPICAL
MINIMUM
SWITCH CURRENT (A)
0
0
100
200
300
400
600
500
0.5
1
1941 G09
1.5
2
TA = 25°C
SW2 PIN CURRENT (A)
0
20
30
2
1941 G11
10
0
0.5
1
1.5
40
TA = 25°C
SWITCH CURRENT (A)
0
100
200
300
400
500
1941 G10
0
0.25
0.5
0.75
1
1.25
1.5
TA = 25°C



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