LTC3104
5
3104f
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Output Current
(Forced Continuous Operation)
Efficiency vs Input Voltage
(Forced Continuous Operation)
Feedback Voltage
vs Temperature
Oscillator Frequency
vs Temperature
R
DS(ON)
vs Temperature
T
A
= 25癈 unless otherwise noted
Application No-Load Input Current
vs Supply Voltage (Forced
Continuous Operation)
Application No-Load Input Current
vs Temperature (Automatic Burst
Mode Operation)
SW Leakage vs Temperature
Peak Current Limit vs Temperature
OUTPUT CURRENT (A)
30
90
100
20
10
80
50
70
60
40
0.0001
0.01
0.1
1
3104 G04
0
0.001
V
IN
= 3.7V
V
IN
= 5V
V
IN
= 7V
V
IN
= 10V
V
IN
= 15V
V
OUT
= 3.3V
L = 10礖
INPUT VOLTAGE (V)
3
0
10
30
40
50
100
70
7
11 13 15
3104 G05
20
80
90
60
5
9
V
OUT
= 3.3V, L = 10礖
I
LOAD
= 300mA
I
LOAD
= 100mA
I
LOAD
= 10mA
I
LOAD
= 1mA
INPUT VOLTAGE (V)
2
2.0
2.5
3.5
8
12
3104 G06
1.5
1.0
4 6
10
14 16
0.5
0
3.0
FRONT PAGE APPLICATION
LDO ENABLED
TEMPERATURE (癈)
60
0.25
0.50
0.75
100
3104 G07
0
0.25
0.50
20
40
20
0
60 80 120
40
140
NORMALIZED TO 25癈
TEMPERATURE (癈)
50
10
8
4
2
0
10
4
0
50 75
3104 G08
6
6
8
2
25
25
100 125 150
NORMALIZED TO 25癈
TEMPERATURE (癈)
50
40
25
3104 G09
10
10
25 0
50
20
30
50
30
20
0
75 100 125
NORMALIZED TO 25癈
V
IN
= 10V
SYNCHRONOUS
RECTIFIER
MAIN
SWITCH
TEMPERATURE (癈)
50
350
25
3104 G10
200
100
25 0
50
50
0
400
300
250
150
75 100 150
125
V
IN
= 10V
MAIN
SWITCH
SYNCHRONOUS
RECTIFIER
TEMPERATURE (癈)
50
2.5
0
2.5
40
100
3104 G11
5.0
7.5
10.0
20 10
70
5.0
7.5
10.0
130
V
IN
= 10V
V
OUT
= 2.5V
TEMPERATURE (癈)
50
2.0
2.5
3.0
3.5
4.0
10
30
70
110
3104 G12
4.5
5.0
25
10
50
90
V
IN
= 10V
V
OUT
= 2.5V
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