Datasheet

LTM8042/LTM8042-1
4
80421fa
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs V
IN
, Boost Operation,
16.7V at 1A LED String
Efficiency vs V
IN
, Boost Operation,
20.1V at 1A LED String
Efficiency vs V
IN
, Boost Operation,
23.4V at 1A LED String
Efficiency vs V
IN
, Boost Operation,
26.8V at 1A LED String
Efficiency vs V
IN
, Buck Mode,
3.5V at 1A LED String
Efficiency vs V
IN
, Buck Mode,
6.8V at 1A LED String
Efficiency vs V
IN
, Boost Operation,
6.8V at 1A LED String
Efficiency vs V
IN
, Boost Operation,
10.1V at 1A LED String
Efficiency vs V
IN
, Boost Operation,
13.4V at 1A LED String
T
A
= 25°C, unless otherwise noted.
LTM8042
V
IN
(V)
4
80
EFFICIENCY (%)
81
82
83
84
85
86
5
90
80421 G01
6
87
88
89
V
IN
(V)
5
80
EFFICIENCY (%)
82
84
87
94
80421 G02
6910
86
88
90
92
V
IN
(V)
7
85
EFFICIENCY (%)
87
86
88
109
95
80421 G03
81211 13
89
90
92
91
93
94
V
IN
(V)
8
80
EFFICIENCY (%)
1413
94
90
92
80421 G04
12111091516
84
82
86
88
V
IN
(V)
11
83
EFFICIENCY (%)
85
1713
97
80421 G05
12 14 1615 18 19
87
91
89
93
95
V
IN
(V)
12
83
EFFICIENCY (%)
1514
97
80421 G06
13 16 191817 2120 22
91
89
93
87
85
95
V
IN
(V)
16
87
EFFICIENCY (%)
1918
97
80421 G07
17 20 232221 2524 26
91
90
93
89
88
95
92
94
96
V
IN
(V)
4
75
EFFICIENCY (%)
1816
89
80421 G08
14 20108612 262422 30 3228 34
77
81
85
79
83
87
V
IN
(V)
8
80
EFFICIENCY (%)
1816
94
80421 G09
14 2010 12 262422 30 3228 34
82
86
90
84
88
92