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LT3757 Datasheet(PDF) 5 Page - Linear Technology

Part # LT3757
Description  Boost, Flyback, SEPIC and Inverting Controller
PDF  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3757 Datasheet(HTML) 5 Page - Linear Technology

  LT3757 Datasheet HTML 1Page - Linear Technology LT3757 Datasheet HTML 2Page - Linear Technology LT3757 Datasheet HTML 3Page - Linear Technology LT3757 Datasheet HTML 4Page - Linear Technology LT3757 Datasheet HTML 5Page - Linear Technology LT3757 Datasheet HTML 6Page - Linear Technology LT3757 Datasheet HTML 7Page - Linear Technology LT3757 Datasheet HTML 8Page - Linear Technology LT3757 Datasheet HTML 9Page - Linear Technology Next Button
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LT3757

3757fb
Typical perForMance characTerisTics
Switching Frequency
vs Temperature
SENSE Current Limit Threshold
vs Temperature
SENSE Current Limit Threshold
vs Duty Cycle
SHDN/UVLO Threshold
vs Temperature
SHDN/UVLO Current vs Voltage
SHDN/UVLO Hysteresis Current
vs Temperature
Dynamic Quiescent Current
vs Switching Frequency
RT vs Switching Frequency
Normalized Switching Frequency
vs FBX
TA = 25°C, unless otherwise noted.
FBX VOLTAGE (V)
–0.8
0
20
40
60
80
120
–0.4
0
0.4
0.8
3757 G06
1.2
1.6
100
–75 –50
0
50 75
–25
25
100
150
125
TEMPERATURE (°C)
100
105
110
115
120
3757 G08
DUTY CYCLE (%)
0
95
105
20
40
80
60
115
100
110
100
3757 G09
SHDN/UVLO VOLTAGE (V)
0
0
20
10
20
30
40
10
30
40
3757 G11
–75 –50
0
50 75
–25
25
100
150
125
TEMPERATURE (°C)
1.6
1.8
2.0
2.2
2.4
3757 G12
SWITCHING FREQUENCY (KHz)
0
0
15
20
35
300
500 600 700
10
5
25
30
100 200
400
900
800
1000
3757 G04
CL = 3300pF
SWITCHING FREQUENCY (KHz)
0
10
100
1000
300
500 600 700
100 200
400
900
800
1000
3757 G05
–75 –50
0
50 75
–25
25
100
150
125
TEMPERATURE (°C)
270
280
290
300
310
330
3757 G07
320
RT = 41.2K
–75 –50
0
50 75
–25
25
100
150
125
TEMPERATURE (°C)
1.18
1.22
1.24
1.26
1.28
1.20
3757 G10
SHDN/UVLO FALLING
SHDN/UVLO RISING



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