Datasheet

LTM8042/LTM8042-1
9
80421fa
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs V
IN
, Buck Mode,
6.7V at 350mA LED String
Efficiency vs V
IN
, Buck Mode,
9.7V at 350mA LED String
Efficiency vs V
IN
, Buck Mode,
12.6V at 350mA LED String
Efficiency vs V
IN
, Buck Mode,
3.7V at 350mA LED String
Efficiency vs V
IN
, Buck Mode,
15.6V at 350mA LED String
T
A
= 25°C, unless otherwise noted.
LTM8042-1
Efficiency vs V
IN
, Boost Operation,
15.6V at 350mA LED String
Efficiency vs V
IN
, Boost Operation,
18.6V at 350mA LED String
Efficiency vs V
IN
, Boost Operation,
21.6V at 350mA LED String
Efficiency vs V
IN
, Boost Operation,
24.8V at 350mA LED String
V
IN
(V)
4
65
EFFICIENCY (%)
12651378 10911
95
80421 G42
14 15
70
80
90
75
85
V
IN
(V)
4
65
EFFICIENCY (%)
12651378 10911
95
80421 G43
14 15 16 17 18
70
80
90
75
85
V
IN
(V)
5
65
EFFICIENCY (%)
1261378 10911
95
80421 G44
14 15 16 17 18
70
80
90
75
85
V
IN
(V)
6
75
EFFICIENCY (%)
12810
93
91
80421 G45
14 16 18 20 22 24
77
81
89
79
85
83
87
V
IN
(V)
4
75
EFFICIENCY (%)
128
93
91
80421 G46
16 20 24 2861410 18 22 26 30 32
77
81
89
79
85
83
87
V
IN
(V)
8
80
EFFICIENCY (%)
12
96
94
80421 G47
16 20 24 281410 18 22 26 30 32 34
84
92
82
88
86
90
V
IN
(V)
11
80
EFFICIENCY (%)
15
98
96
94
80421 G48
19 21 25 291713 23 27 31 33
84
92
82
88
86
90
V
IN
(V)
14
85
EFFICIENCY (%)
97
80421 G49
18 20 24 2816 22 26 30 32
89
87
93
91
95
V
IN
(V)
17
85
EFFICIENCY (%)
97
80421 G50
21 23 2719 25 29 31 33
89
87
93
91
95