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
Effi ciency
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
LOAD CURRENT (A)
0.1
0.3
0.4
0.5
1.0
0.7
10
20
3502 G06
0.2
0.8
0.9
0.6
30
40
MINIMUM
TYPICAL
TYPICAL PERFORMANCE CHARACTERISTICS
LT3502A 3.3V
OUT
Effi ciency LT3502A 5V
OUT
Effi ciency LT3502 3.3V
OUT
Effi ciency
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)