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LTC1629C Datasheet(PDF) 5 Page - Linear Technology

Part # LTC1629C
Description  PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulators
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1629C Datasheet(HTML) 5 Page - Linear Technology

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5
LTC1629/LTC1629-PG
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
INTVCC and EXTVCC Switch
Voltage vs Temperature
Supply Current vs Input Voltage
and Mode
EXTVCC Voltage Drop
TYPICAL PERFOR A CE CHARACTERISTICS
INPUT VOLTAGE (V)
05
0
400
1000
10
20
25
1629 G04
200
800
600
15
30
35
ON
SHUTDOWN
CURRENT (mA)
0
150
200
250
40
1629 G05
100
50
0
10
20
30
50
LTC1629
LTC1629-PG
TEMPERATURE (
°C)
–50
4.95
5.00
5.05
25
75
1629 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
1629 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
1629 G08
100
PERCENT ON NOMINAL OUTPUT VOLTAGE (%)
0
40
50
60
100
1629 G09
30
20
0
25
50
75
10
80
70
VRUN/SS (V)
0
0
20
40
60
80
12
3
4
1629 G10
56
VSENSE(CM) = 1.6V
COMMON MODE VOLTAGE (V)
0
72
76
80
4
1629 G11
68
64
60
1
2
3
5
VITH (V)
0
30
50
70
90
2
1629 G12
10
–10
20
40
60
80
0
–20
–30
0.5
1
1.5
2.5



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