3507 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
3507 Datasheet PDF : 28 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT3507
Efficiency vs Load Current,
Channel 1, VOUT = 1.8V
90 TA = 25°C
fSW = 450kHz
80
VIN = 6V
VIN = 12V
70
VIN = 36V
60
50
40
0
0.5
1
1.5
2
2.5
IOUT (A)
3507 G01
BOOST Pin Current vs Switch
Current, Channels 1, 2 and 3
100
TA = 25°C
90
80
70
CHANNELS 2 & 3
60
50
CHANNEL 1
40
30
20
10
0
0 0.5 1 1.5 2 2.5 3
ISW (A)
3507 G04
Efficiency vs Load Current,
Channels 2 and 3, VOUT = 3.3V
100
TA = 25°C
fSW = 450kHz
90
VIN = 6V
80
VIN = 12V
VIN = 36V
70
60
50
40
0
0.3 0.6 0.9 1.2 1.5
IOUT (A)
3507 G02
Switch VCESAT vs Switch Current,
Channels 1, 2 and 3
0.6
TA = 25°C
0.5
CHANNELS 2 & 3
0.4
CHANNEL 1
0.3
0.2
0.1
0
0 0.5 1 1.5 2 2.5 3
ISW (A)
3507 G03
VFB vs Temperature
805
804
803
802
801
800
799
798
797
796
795
–50 –30 –10 30 50 70 90 110 130 150
TEMPERATURE (°C)
3507 G05
Frequency vs RT
2.5
TA = 25°C
0.25
10
100
RT (kΩ)
3507 G06
Frequency vs Temperature
0.5
0.0
–0.5
–1.0
–1.5
–2.0
–50 –30 –10 30 50 70 90 110 130 150
TEMPERATURE (°C)
3507 G07
Frequency vs VFB (Foldback)
1200
RT = 40.2k
TA = 25°C
1000
800
600
400
200
0
0
0.2 0.4 0.6 0.8
1
VFB (V)
3507 G08
ITRK/SS vs Temperature
1.30
1.28
1.26
1.24
1.22
1.20
–50 –30 –10 30 50 70 90 110 130 150
TEMPERATURE (°C)
3507 G09
3507f
5
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