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LT3972 Datasheet(PDF) 5 Page - Linear Technology

Part # LT3972
Description  33V, 3.5A, 2.4MHz Step-Down Switching Regulator with 75關A Quiescent Current
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3972 Datasheet(HTML) 5 Page - Linear Technology

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LT3972
5
3972f
BOOST DIODE CURRENT (A)
0
0.8
1.0
1.2
2.0
3680 G18
0.6
0.4
0
0.5
1.0
1.5
0.2
1.4
RUN/SS PIN VOLTAGE (V)
0
1.5
3680 G16
4
2
0.5
1
2
1
0
7
6
5
3
2.5
3
3.5
FB PIN VOLTAGE (mV)
0
800
1000
1200
600
3680 G14
600
400
200
400
800
500
100
300
700
900
200
0
TEMPERATURE (°C)
80
100
120
3680 G15
60
40
20
0
140
–50
25
–25
0
50
75
100
150
125
RUN/SS PIN VOLTAGE (V)
0
8
10
12
15
25
3680 G17
6
4
510
20
30
35
2
0
SWITCH CURRENT (A)
0
15
45
60
75
120
3680 G11
30
90
105
03
12
45
TEMPERATURE (°C)
800
3680 G12
760
840
780
820
–50
25
–25
0
50
75
100
150
125
TEMPERATURE (°C)
1.00
1.10
3680 G13
0.90
0.80
1.20
0.95
1.05
0.85
1.15
–50
25
–25
0
50
75
100
150
125
SWITCH CURRENT (A)
0
400
500
700
3
3680 G10
300
200
12
45
100
0
600
Boost Pin Current
Feedback Voltage
Switching Frequency
Frequency Foldback
Minimum Switch On-Time
Soft-Start
RUN/SS Pin Current
Boost Diode
Switch Voltage Drop
TA = 25°C unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS



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