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LT3479 Datasheet(PDF) 4 Page - Linear Technology

Part # LT3479
Description  3A, Full Featured DC/DC Converter with Soft-Start and Inrush Current Protection
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3479 Datasheet(HTML) 4 Page - Linear Technology

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LT3479
4
3479fc
TYPICAL PERFORMANCE CHARACTERISTICS
SWITCH CURRENT (A)
0
0
0.1
0.2
0.3
125°C
–50°C
0.5
0.4
0.5
1
1.5
2
3479 G01
2.5
3
25°C
TEMPERATURE (°C)
–50
4
5
6
25
75
3479 G02
3
2
–25
0
50
100
125
1
0
INDUCTOR CURRENT LIMIT
SWITCH CURRENT LIMIT
TEMPERATURE (°C)
–50
1.21
1.22
1.23
1.24
1.26
1.25
1.27
–25
0
25
50
3479 G03
75
125
100
150
VIN = 24V
VIN = 2.5V
TEMPERATURE (°C)
–50
1.250
1.375
1.500
1.625
1.750
–25
0
25
50
3479 G04
75
100
125
VSHDN (V)
0
0
10
20
30
40
50
4
812
16
3479 G05
20
24
–50°C
25°C
125°C
TEMPERATURE (°C)
–50
2
3
4
5
6
–25
0
25
50
3479 G06
75
125
100
150
VC = 0.3V
TEMPERATURE (°C)
–50
0
5
10
15
20
–25
0
25
50
3479 G07
75
125
100
150
TEMPERATURE (°C)
–50
0
0.4
0.8
1.2
1.6
2.0
–25
0
25
50
3479 G08
75
125
100
150
RT = 10k
RT = 15k
RT = 20k
TEMPERATURE ( C)
–50
0
1
2
3
4
5
–25
025
50
3479 G09
75
100
VC = 0.5V
VC = 1V
SHDN Pin Turn-On Threshold
SHDN Pin Current
VIN Pin Current
Soft-Start Pin Current
Oscillator Frequency
Feedback Amplifier Offset Voltage
Switch VCE(SAT)
Inductor and Switch Current Limit
VREF


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