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3507 Datasheet(PDF) 5 Page - Linear Technology

Part # 3507
Description  Triple Monolithic Step-Down Regulator with LDO
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

3507 Datasheet(HTML) 5 Page - Linear Technology

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



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