LT1956-5 データシートの表示（PDF） - Linear Technology
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LT1956-5 Datasheet PDF : 28 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
Switching Frequency
575
550
525
500
475
450
425
–50
–25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
1956 G10
Minimum Input Voltage with 5V
Output
7.5
VOUT = 5V
L = 18µH
7.0
MINIMUM INPUT
6.5
VOLTAGE TO START
6.0
MINIMUM INPUT
VOLTAGE TO RUN
5.5
5.0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
LOAD CURRENT (A)
1956 G11
VC Pin Shutdown Threshold
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
1956 G13
Switch Voltage Drop
450
400
TJ = 125°C
350
300
TJ = 25°C
250
200
150
TJ = –40°C
100
50
0
0
0.5
1
1.5
SWITCH CURRENT (A)
1766 G14
LT1956/LT1956-5
BOOST Pin Current
45
40
35
30
25
20
15
10
5
0
0
0.5
1
SWITCH CURRENT (A)
Switch Minimum ON Time
vs Temperature
600
1.5
1956 G12
500
400
300
200
100
0
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
1956 G15
1956f
5
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