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LTC1709-7 데이터시트(PDF) 5 Page - Linear Technology

부품명 LTC1709-7
상세설명  2-Phase, 5-Bit VID, Current Mode, High Efficiency, Synchronous Step-Down Switching Regulator
PDF  28 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LTC1709-7 데이터시트(HTML) 5 Page - Linear Technology

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LTC1709-7
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Input Voltage
and Mode
EXTVCC Voltage Drop
INTVCC and EXTVCC Switch
Voltage vs Temperature
INPUT VOLTAGE (V)
05
0
400
1000
10
20
25
17097 G04
200
800
600
15
30
35
ON
SHUTDOWN
CURRENT (mA)
0
150
200
250
40
17097 G05
100
50
0
10
20
30
50
TEMPERATURE (
°C)
–50
4.95
5.00
5.05
25
75
17097 G06
4.90
4.85
–25
0
50
100
125
4.80
4.70
4.75
INTVCC VOLTAGE
EXTVCC SWITCHOVER THRESHOLD
Maximum Current Sense Threshold
vs Percent of Nominal Output
Voltage (Foldback)
Internal 5V LDO Line Reg
Maximum Current Sense Threshold
vs Duty Factor
INPUT VOLTAGE (V)
0
4.8
4.9
5.1
15
25
17097 G07
4.7
4.6
510
20
30
35
4.5
4.4
5.0
ILOAD = 1mA
DUTY FACTOR (%)
0
0
25
50
75
20
40
60
80
17097 G08
100
PERCENT OF NOMINAL OUTPUT VOLTAGE (%)
0
40
50
60
100
17097 G09
30
20
0
25
50
75
10
80
70
Maximum Current Sense Threshold
vs VRUN/SS (Soft-Start)
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
Current Sense Threshold
vs ITH Voltage
VRUN/SS (V)
0
0
20
40
60
80
12
3
4
17097 G10
56
VSENSE(CM) = 1.6V
COMMON MODE VOLTAGE (V)
0
72
76
80
4
17097 G11
68
64
60
1
2
3
5
VITH (V)
0
30
50
70
90
2
17097 G12
10
–10
20
40
60
80
0
–20
–30
0.5
1
1.5
2.5



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