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LTC3873-5 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3873-5
Description  Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller
Download  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3873-5 Datasheet(HTML) 4 Page - Linear Technology

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LTC3873-5
4
38735fb
TYPICAL PERFORMANCE CHARACTERISTICS
CLOAD (pF)
0
60
80
100
8000
38735 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
38735 G07
0.7
0.6
0.5
–40 –20
0
40
80 100
RISING
FALLING
Shutdown Mode IQ vs VIN
Gate Drive Rise and Fall Time
vs CLOAD
Shutdown IQ vs Temperature
RUN Threshold vs Temperature
Shunt Regulator Voltage
vs ISHUNT
VIN (V)
3
20
25
35
40
45
70
55
5
7
8
3873-5 G04
30
60
65
50
4
6
9
10
TEMPERATURE (°C)
–60
40
50
60
100
3873-5 G05
30
20
0
–20
20
60
–40
120
0
40
80
10
80
70
ISHUNT (mA)
0
9.2
9.3
9.5
9.6
9.7
10.2
9.9
10
20
25
45
3873-5 G08
9.4
10.0
10.1
9.8
515
30
35
40
TEMPERATURE (°C)
–60
1.22
1.23
1.24
60
40
38735 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
38735 G02
1.2000
1.2020
4
9
10
3
68
RUN/SS VOLTAGE (V)
0
1.5
2.0
2.5
4.0
38735 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
Regulated Feedback Voltage vs
Temperature
Regulated Feedback Voltage Line
Regulation
ITH Voltage vs RUN/SS Voltage


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