Datasheet

LT3502/LT3502A
4
3502fd
LT3502 Maximum Load Current
V
OUT
= 5V, L = 22µH Switch Voltage Drop
LT3502 Maximum Load Current
V
OUT
= 3.3V, L = 15µH
SWITCH CURRENT (A)
0
500
25°C
125°C
600
700
0.8
3502 G09
400
300
0.2 0.4 0.6 1.0
200
100
0
V
CE
(mV)
–40°C
V
IN
(V)
0
LOAD CURRENT (A)
0.5
0.6
0.7
40
3502 G07
0.4
0.3
0
0.1
10
20
30
0.2
0.9
0.8
MINIMUM
TYPICAL
V
IN
(V)
0
LOAD CURRENT (A)
0.5
0.6
0.7
40
3502 G08
0.4
0.3
0
0.1
10
20
30
0.2
0.9
0.8
MINIMUM
TYPICAL
LT3502 5V
OUT
Efficiency
LT3502A Maximum Load Current
V
OUT
= 3.3V, L = 6.8µH
LT3502A Maximum Load Current
V
OUT
= 5V, L = 10µH
LOAD CURRENT (A)
0
EFFICIENCY (%)
60
80
100
0.4
3502 G04
40
20
50
70
90
30
10
0
0.1
0.2
0.3
0.5
24V
IN
12V
IN
V
IN
(V)
0
0
LOAD CURRENT (A)
0.1
0.3
0.4
0.5
1.0
0.7
10
20
TYPICAL
3502 G05
0.2
0.8
0.9
0.6
30
40
MINIMUM
V
IN
(V)
0
0
0.1
0.3
0.4
0.5
1.0
0.7
10
20
0.2
0.8
0.9
0.6
30
40
MINIMUM
TYPICAL
typical perForMance characteristics
LT3502A 3.3V
OUT
Efficiency LT3502A 5V
OUT
Efficiency LT3502 3.3V
OUT
Efficiency
LOAD CURRENT (A)
0
0
EFFICIENCY (%)
10
30
40
50
0.2
0.4
0.5
90
3502 G01
20
0.1 0.3
60
70
80
24V
IN
12V
IN
LOAD CURRENT (A)
0
0
EFFICIENCY (%)
10
30
40
50
0.2
0.4
0.5
90
3502 G02
20
0.1 0.3
60
70
80
24V
IN
12V
IN
LOAD CURRENT (A)
0
EFFICIENCY (%)
60
80
100
0.4
3502 G03
40
20
50
70
90
30
10
0
0.1
0.2
0.3
0.5
5V
IN
24V
IN
12V
IN
(T
A
= 25°C unless otherwise noted)