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LT3570 Datasheet(PDF) 5 Page - Linear Technology

Part No. LT3570
Description  1.5A Buck Converter, 1.5A Boost Converter and LDO Controller
Download  20 Pages
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LT3570 Datasheet(HTML) 5 Page - Linear Technology

 
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LT3570
5
3570fb
TYPICAL PERFORMANCE CHARACTERISTICS
VIN1 Quiescent Current
vs Temperature
VIN2 Quiescent Current
vs Temperature
VIN3 Quiescent Current
vs Temperature
Bias Pin Current vs Temperature
SHDN Pin UVLO vs Temperature
SHDN Pin Current vs Voltage
SW1 Current Limit vs Duty Cycle
SW1 Saturation Voltage
vs SW1 Current
TEMPERATURE (°C)
–50
2.0
2.5
3.0
25
50
75
100 125
3570 G04
1.5
1.0
–25
0
150
0.5
0
3.5
TEMPERATURE (°C)
–50
2.0
3.0
150
3570 G05
1.0
0
0
50
100
–25
25
75
125
4.0
1.5
2.5
0.5
3.5
TEMPERATURE (°C)
–50
500
600
700
150
3570 G06
400
300
0
0
50
100
–25
25
75
125
200
100
900
800
TEMPERATURE (°C)
–50
0
0.5
1.0
1.5
2.0
050
100
150
3570 G07
2.5
3.0
–25
25
75
125
TEMPERATURE (°C)
–50
0
0.25
0.50
0.75
1.00
050
100
150
3570 G08
1.25
1.50
–25
25
75
125
VOLTAGE (V)
0
30
40
50
15
25
40
3570 G09
20
10
0
510
20
30
35
DUTY CYCLE (%)
0
1.0
2.0
3.0
0.5
1.5
2.5
20
40
60
80
3570 G10
100
10
030
50
70
90
TJ = 125°C
TJ = 25°C
TJ = –40°C
CURRENT (A)
0
0
50
150
200
250
350
0.1
0.5
0.7
3570 G11
100
300
0.4
0.9 1.0
0.2 0.3
0.6
0.8
TJ = 125°C
TJ = 25°C
TJ = –40°C


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