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LTC3873 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3873
Description  No RSENSETM Constant Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3873 Datasheet(HTML) 4 Page - Linear Technology

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LTC3873
4
3873fa
TYPICAL PERFORMANCE CHARACTERISTICS
Shutdown Mode IQ vs VIN
Gate Drive Rise and Fall Time
vs CLOAD
Shutdown IQ vs Temperature
RUN Threshold vs Temperature
Shunt Regulation Voltage
vs ISHUNT
Feedback Voltage vs Temperature
Feedback Voltage Line Regulation
ITH Voltage vs RUN/SS Voltage
TEMPERATURE (°C)
–60
1.22
1.23
1.24
60
40
3873 G01
1.21
1.20
–20
–40
20
0
120
100
80
1.19
1.18
1.25
VIN (V)
1.1990
1.1995
1.2005
1.2010
1.2015
1.2025
5
7
3873 G02
1.2000
1.2020
9
10
68
RUN/SS VOLTAGE (V)
0
1.5
2.0
2.5
4.0
3873 G03
1.0
0.5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5
4.5 5.0
VIN = 5V
VIN (V)
3
20
25
35
40
45
70
55
5
7
8
3873 G04
30
60
65
50
4
6
9
10
TEMPERATURE (°C)
–60
40
50
60
100
3873 G05
30
20
0
–20
20
60
–40
120
0
40
80
10
80
70
CLOAD (pF)
0
60
80
100
8000
3873 G06
40
20
50
70
90
30
10
0
2000
4000
6000
10000
RISE TIME
FALL TIME
TEMPERATURE (°C)
–60
0.8
0.9
1.0
20
60
120
3873 G07
0.7
0.6
0.5
–40 –20
0
40
80 100
RISING
FALLING
ISHUNT (mA)
0
9.2
9.3
9.5
9.6
9.7
10.2
9.9
10
20
25
45
3873 G08
9.4
10.0
10.1
9.8
515
30
35
40



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