LT3682EDD 데이터 시트보기 (PDF) - Linear Technology
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LT3682EDD Datasheet PDF : 24 Pages
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LT3682
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Efficiency (VOUT = 5V, SYNC = 0V)
90
VIN = 12V
80
70
60
50
VIN = 34V
40
VIN = 24V
30
20
10
0.1
L = 10μH
f = 800kHz
1
10
100
LOAD CURRENT (mA)
1000
3682 G01
Efficiency (VOUT = 3.3V, SYNC = 0V)
90
VIN = 12V
80
70
60
50
VIN = 34V
40
VIN = 24V
30
20
10
0.1
L = 10μH
f = 800kHz
1
10
100
LOAD CURRENT (mA)
1000
3682 G02
Efficiency (VOUT = 3.3V, SYNC = 0V)
100
1
90
80
70
0.1
60
50
40
30
20
10
0.1
0.01
VIN = 12V
VOUT = 3.3V
L = 10μH
f = 800kHz
0.001
1
10
100
1000
LOAD CURRENT (mA)
3682 G03
No Load Supply Current
120
VOUT = 3.3V
100
80
60
40
20
0
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE(V)
3682 G04
No Load Supply Current
1000
900
800
CATCH DIODE: DIODES, INC. B150
VIN = 12V
VOUT = 3.3V
700
600
INCREASED SUPPLY CURRENT
500
DUE TO CATCH DIODE LEAKAGE
AT HIGH TEMPERATURE
400
300
200
100
0
50 25
0 25 50 75 100 125
TEMPERATURE(°C)
3682 G05
Maximum Load Current
1.75
TYPICAL
1.5
1.25
1
0.75
0.5
0.25
0
MINIMUM
SYNC = 0V
SYNC = 3.3V
VOUT = 3.3V
L = 10μH
f = 800kHz
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3682 G06
Maximum Load Current
1.5
TYPICAL
1.25
1
0.75
0.5
0.25
5
MINIMUM
SYNC = 0V
SYNC = 5V
VOUT = 5V
L = 10μH
f = 800kHz
10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3682 G07
4
Maximum Load Current
1.5
TYPICAL
1.25
1
0.75
0.5
0.25
8
MINIMUM
SYNC = 0V
SYNC = 5V
VOUT = 5V
L = 4.7μH
f = 2MHz
10 12 14 16 18 20
INPUT VOLTAGE (V)
3682 G08
Maximum Load Current
1.75
1.5 TYPICAL
1.25
1
0.75
0.50
0.25
0
MINIMUM
SYNC = 0V
SYNC = 3.3V
VOUT = 1.8V
L = 10μH
f = 500kHz
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3682 G09
3682f
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