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LT3437 Datasheet(PDF) 4 Page - Linear Technology

Part # LT3437
Description  High Voltage 500mA, 200kHz Step-Down Switching Regulator with 100uA Quiescent Current
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3437 Datasheet(HTML) 4 Page - Linear Technology

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LT3437
4
3437f
3437 G08
600
400
300
200
100
0
900
700
800
500
TEMPERATURE (
°C)
–50
0
50
75
–25
25
100
125
RUN MODE
SLEEP MODE
1.20
1.24
1.30
1.22
1.28
1.26
TEMPERATURE (
°C)
–50
0
50
75
3437 G02
–25
25
100
125
TEMPERATURE (
°C)
–50
150
160
180
190
200
220
0
50
75
3437 G03
170
230
240
250
210
–25
25
100
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
125
VSHDN (V)
0
0
2
4
6
10
20
30
40
3437 G05
50
8
10
60
3437 G06
6
4
3
2
1
0
10
7
9
8
5
TEMPERATURE (
°C)
–50
0
50
75
–25
25
100
125
VVIN = 12V
VVIN = 60V
VVIN = 80V
3437 G07
600
400
300
200
100
0
700
500
TEMPERATURE (
°C)
–50
0
50
75
–25
25
100
125
RUN MODE
SLEEP MODE VBIAS = 0V
SLEEP MODE VBIAS = 5V
TEMPERATURE (
°C)
–50
0
200
100
300
400
500
600
700
800
–25
–0
25
50
3437 G09
75
100
125
TYPICAL PERFOR A CE CHARACTERISTICS
FB Voltage vs Temperature
Oscillator Frequency
vs Temperature
SHDN Threshold
SHDN Pin Current
Shutdown Supply Current
vs Temperature
Input Current vs Temperature
Bias Current vs Temperature
Switch Peak Current Limit
vs Temperature
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



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