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LT3692
7
3692fa
For more information www.linear.com/3692
Typical perForMance characTerisTics
Boost Current vs Temperature
Minimum Boost Voltage
vs Temperature
Switching Frequency
vs RT/SYNC Resistance Efficiency, T
J
vs Load Current
Efficiency, T
J
vs Load Current
Efficiency, T
J
vs Load Current
Efficiency, T
J
vs Load Current
Switch Peak Current
vs Temperature
TEMPERATURE (°C)
–50
0
BOOST CURRENT (mA)
10
30
40
50
100
70
0
50
75
3692 G19
20
80
90
60
–25 25
100
125
150
0.5A
1A
3A
TEMPERATURE (°C)
–50
0
PEAK CURRENT (A)
0.5
1.5
2.0
2.5
5.0
3.5
0
50
75
3692 G20
1.0
4.0
4.5
3.0
–25 25
100
125
150
V
ILIM
= 1.5V
V
ILIM
= 0.5V
V
ILIM
= 0V
TEMPERATURE (°C)
–50
2.00
2.50
1.50
1.00
0
50
100
–25
25
75
125
1.75
2.25
1.25
2.75
I
SW
= 3A
RESISTANCE (kΩ)
0
0
FREQUENCY (kHz)
500
1500
2000
2500
20
40
50 90
3692 G22
1000
10 30
60
70
80
LOAD CURRENT (A)
0
70
EFFICIENCY (%)
T
J
(°C)
72
76
78
80
90
84
1
2
2.5
3692 G23
74
86
88
82
0
10
20
30
80
50
60
70
40
0.5 1.5
3
3.5
4
EFFICIENCY
T
J
V
IN
= 12V
V
OUT
= 5V
FREQ = 1MHz
LOAD CURRENT (A)
0
EFFICIENCY (%)
T
J
(°C)
78
82
4
3692 G24
74
70
1
2
3
0.5
1.5
2.5
3.5
86
76
80
72
84
30
50
10
0
70
20
40
T
J
60
V
IN
= 12V
V
OUT
= 3.3V
FREQ = 1MHz
EFFICIENCY
LOAD CURRENT (A)
0
EFFICIENCY (%)
T
J
(°C)
78
80
4
3692 G25
74
68
70
1
2
3
0.5
1.5
2.5
3.5
82
76
72
30
50
10
0
70
20
40
T
J
60
V
IN
= 12V
V
OUT
= 2.5V
FREQ = 1MHz
EFFICIENCY
LOAD CURRENT (A)
0
60
EFFICIENCY (%)
T
J
(°C)
62
66
68
70
80
74
1
2
2.5
3692 G26
64
76
78
72
0
10
20
30
60
50
40
0.5 1.5
3
3.5
4
EFFICIENCY
T
J
V
IN
= 12V
V
OUT
= 1.8V
FREQ = 1MHz