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LT3437 Datasheet(PDF) 5 Page - Linear Technology

Part # LT3437
Description  High Voltage 500mA, 200kHz Step-Down Switching Regulator with 100A Quiescent Current
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3437 Datasheet(HTML) 5 Page - Linear Technology

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5
LT3437
3437fc
TEMPERATURE (
°C)
–50
800
700
600
500
400
300
200
100
0
110
3437 G08
–10
30
70
150
90
–30
10
50
130
RUN MODE
SLEEP MODE
TEMPERATURE (
°C)
0
200
400
600
100
300
500
–10
30
70
110
3437 G07
150
–30
–50
10
50
90
130
RUN MODE
SLEEP MODE VBIAS = 0V
SLEEP MODE VBIAS = 5V
Efficiency and Power Loss
vs Load Current
LOAD CURRENT (mA)
0.1
0
20
10
40
50
60
100
100
3437 G01
30
1
10
1000
70
80
90
500
450
400
350
300
250
200
150
100
50
0
EFFICIENCY
POWER LOSS
VIN = 12V
VOUT = 3.3V
TA = 25°C
1.20
1.24
1.30
1.22
1.28
1.26
TEMPERATURE (
°C)
3437 G02
–50
0
50
75
–25
25
100
150
125
TEMPERATURE (
°C)
150
160
180
190
200
220
3437 G03
170
230
240
250
210
–50
0
50
75
–25
25
100
150
125
1.35
3437 G04
1.20
1.10
1.40
1.45
1.50
1.30
1.25
1.15
TEMPERATURE (
°C)
–50
0
50
75
–25
25
100
150
125
VSHDN (V)
0
0
2
4
6
10
20
30
40
3437 G05
50
8
10
60
3437 G06
6
4
2
0
10
8
16
14
12
22
18
TEMPERATURE (
°C)
20
–50
0
50
75
–25
25
100
150
125
VVIN = 80V
VVIN = 12V
VVIN = 60V
TEMPERATURE (
°C)
0
200
100
300
400
500
600
700
800
3437 G09
–50
0
50
75
–25
25
100
150
125
TYPICAL PERFOR A CE CHARACTERISTICS
FB Voltage vs Temperature
Oscillator Frequency
vs Temperature
SHDN Threshold
Shutdown Supply Current
vs Temperature
Input Current vs Temperature
Bias Current vs Temperature
Switch Peak Current Limit
vs Temperature
SHDN Pin Current


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