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LTC1871 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC1871
Description  Wide Input Range, No RSENSE Current Mode Boost, Flyback and SEPIC 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

LTC1871 Datasheet(HTML) 4 Page - Linear Technology

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4
LTC1871
TYPICAL PERFOR A CE CHARACTERISTICS
FB Voltage vs Temp
FB Voltage Line Regulation
FB Pin Current vs Temperature
TEMPERATURE (
°C)
–50
1.23
1.24
150
1871 G01
1.22
1.21
0
50
100
–25
25
75
125
1.25
VIN (V)
0
1.229
1.230
1.231
510
15
20
1871 G02
25
30
35
TEMPERATURE (
°C)
–50
0
10
20
30
40
60
–25
25
0
50
100
75
1871 G03
125 150
50
Shutdown Mode IQ vs VIN
Burst Mode IQ vs VIN
VIN (V)
0
0
10
20
10
20
30
40
1871 G04
30
Shutdown Mode IQ vs Temperature
TEMPERATURE (
°C)
–50
0
5
10
15
20
–25
0
25
50
1871 G05
75
100 125 150
VIN = 5V
VIN (V)
0
0
100
200
300
400
600
10
20
1871 G06
30
40
500
Burst Mode IQ vs Temperature
Gate Drive Rise and Fall Time
vs CL
Dynamic IQ vs Frequency
TEMPERATURE (
°C)
–50
0
200
500
0
50
75
1871 G07
100
400
300
–25
25
100 125
150
FREQUENCY (kHz)
0
0
2
6
8
10
800
18
1871 G08
4
400
1200
600
200
1000
12
14
16
CL = 3300pF
IQ(TOT) = 550µA + Qg • f
CL (pF)
0
0
10
20
30
40
60
2000
4000
6000
8000
1871 G09
10000 12000
50
RISE TIME
FALL TIME



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