LT3513 Просмотр технического описания (PDF) - Linear Technology
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LT3513 Datasheet PDF : 20 Pages
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LT3513
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Maximum Output Current for
VLOGIC = 3.3V
2.6
2.4
L = 4.3μH
2.2
L = 2.4μH
2.0
1.8
1.6
1.4
1.2
0
5
10
15
20
VIN (V)
3513 G01
BOOST Pin Current
70
60
50
40
30
20
10
0
0 500 1000 1500 2000 2500 3000
SWITCH CURRENT (mA)
3513 G04
SW4 Current Limit
500
450
400
350
300
250
200
150
100
–50 –30 –10 10 30 50 70 90 110
AMBIENT TEMPERATURE (°C)
3513 G07
SW1 Current Limit vs Duty Cycle
3.0
SW1 CURRENT LIMIT
vs DUTY CYCLE
2.5
2.0
MINIMUM
1.5
1.0
0.5
0
25 35
45
55
65
75
DUTY CYCLE (%)
3513 G02
SW2 Current Limit
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
–40 –15 10 35 60 85 110
AMBIENT TEMPERATURE (°C)
3513 G05
SW1 VCESAT
1000
900
800
700
600
500
400
300
200
100
0
0 500 1000 1500 2000 2500 3000
SW1 CURRENT (mA)
3513 G08
Start and Run VLOGIC = 3.3V
8
7
6 VIN(MIN) START
5
VIN(MIN) RUN
4
3
2
1
0
0.001
0.01
0.1
LOAD CURRENT (A)
1
3513 G03
SW3 Current Limit
500
450
400
350
300
250
200
150
100
–50 –30 –10 10 30 50 70 90 110
AMBIENT TEMPERATURE (°C)
3513 G06
SW2 VCESAT
600
500
400
300
200
100
0
0
400 800 1200 1600 2000
ISW2 (mA)
3513 G09
3513fa
5
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