lt3741 Linear Technology Corporation, lt3741 Datasheet - Page 8

• Manufacturer Part Number: lt3741
• Description: High Power, Constant Current, Constant Voltage, Step-down Controller
• Manufacturer: Linear Technology Corporation

LT3741
Typical perFormance characTerisTics

100
12
10
95
90
85
80
75
70
6
5
4
1
8
4
2
0
3
2
0
6
0
0 2 4 6 8 10 12 14 16 18 20 22 24
V
Efficiency and Power Loss
vs Load Current
0
V
V
V
I
V
V
I
OUT
LIMIT
LIMIT
OUT
IN
OUT
IN
OUT
2
= 24V
= 20V
= 5V
= 10V
vs I
= 18A
vs I
= 24A
4
2
OUT
OUT
6
LOAD CURRENT (A)
8
4
I
I
OUT
OUT
EFFICIENCY
10 12 14 16 18
POWER LOSS
(A)
(A)
6
V
V
IN
OUT
8
= 25V
= 20V
3741 G19
3741 G33
3741 G30
20
26
10
4.8
4.0
3.2
2.4
1.6
0.8
0
100
100
25
20
15
10
95
90
85
80
75
70
95
90
85
80
75
70
65
60
55
50
45
40
5
0
0
Efficiency and Power Loss
vs Load Current
0
Efficiency and Power Loss
vs Load Current
0
V
V
V
I
LIMIT
OUT
IN
OUT
1
= 25V
= 20V
vs I
= 9.5A
2
5
5
POWER LOSS
OUT
3
LOAD CURRENT (A)
LOAD CURRENT (A)
EFFICIENCY
10
4
I
OUT
10
5
EFFICIENCY
(A)
15
POWER LOSS
6
7
15
V
V
V
V
20
IN
OUT
8
IN
OUT
= 24V
= 20V
= 10V
9
3741 G22
= 5V
3741 G29
3741 G37
10
25
20
30
25
20
15
10
5
0
12
10
8
6
4
2
0
3741f