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LTC3707IGN Scheda tecnica(PDF) 5 Page - Linear Technology

Il numero della parte LTC3707IGN
Spiegazioni elettronici  High Effi ciency, 2-Phase Synchronous Step-Down Switching Regulator
PDF  32 Pages
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTC3707IGN Scheda tecnica(HTML) 5 Page - Linear Technology

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LTC3707
5
3707fb
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Input Voltage
and Mode (Figure 13)
EXTVCC Voltage Drop
INTVCC and EXTVCC Switch
Voltage vs Temperature
Internal 5V LDO Line Reg
Maximum Current Sense
Threshold vs Duty Factor
Maximum Current Sense
Threshold vs Percent of Nominal
Output Voltage (Foldback)
Maximum Current Sense
Threshold vs VRUN/SS (Soft-Start)
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
Current Sense Threshold
vs ITH Voltage
INPUT VOLTAGE (V)
05
0
400
1000
10
20
25
3707 G04
200
800
600
15
30
BOTH
CONTROLLERS ON
STANDBY
SHUTDOWN
CURRENT (mA)
0
200
150
100
50
0
40
3707 G05
10
20
30
TEMPERATURE (°C)
–50
4.95
5.00
5.05
25
75
3707 G06
4.90
4.85
–25
0
50
100
125
4.80
4.70
4.75
INTVCC VOLTAGE
EXTVCC SWITCHOVER THRESHOLD
INPUT VOLTAGE (V)
0
4.8
4.9
5.1
15
25
3707 G07
4.7
4.6
510
20
30
4.5
4.4
5.0
ILOAD = 1mA
DUTY FACTOR (%)
0
0
25
50
75
20
40
60
80
3707 G08
100
PERCENT ON NOMINAL OUTPUT VOLTAGE (%)
0
40
50
60
100
3707 G09
30
20
0
25
50
75
10
80
70
VRUN/SS (V)
0
0
20
40
60
80
12
3
4
3707 G10
56
VSENSE(CM) = 1.6V
COMMON MODE VOLTAGE (V)
0
72
76
80
4
3707 G11
68
64
60
1
2
3
5
VITH (V)
0
30
50
70
90
2
3707 G12
10
–10
20
40
60
80
0
–20
–30
0.5
1
1.5
2.5



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