LT1587-1.5 Просмотр технического описания (PDF) - Linear Technology
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LT1587-1.5 Datasheet PDF : 8 Pages
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LT1587-1.5
TYPICAL PERFORMANCE CHARACTERISTICS
Dropout Voltage vs Output Current
1.5
GUARANTEED
1.4 TEST POINTS
1.3
1.2
T = –5°C
1.1
1.0
T = 25°C
0.9
T = 125°C
0.8
0.7
0.6
0.5
0
0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
LT1587 • TPC01
Short-Circuit Current
vs Temperature
5.0
4.5
4.0
3.5
3.0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1587 • TPC02
Load Regulation vs Temperature
0.10
∆I = 3A
0.05
0
–0.05
–0.10
–0.15
–0.20
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1587 • TPC03
Output Voltage vs Temperature
1.53
1.52
1.51
1.50
1.49
1.48
1.47
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1587 • TPC04
Quiescent Current vs Temperature
13
12
11
10
9
8
7
6
5
4
3
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1587 • TPC05
Ripple Rejection vs Frequency
90
80
70
60
50
40
30
20
LT1587-1.5: (VIN – VOUT) ≤ 3V
10 0.5V ≤ VRIPPLE ≤ 2V
IOUT = IFULL LOAD
0
10
100
1k
10k
FREQUENCY (Hz)
100k
LT1587 • TPC06
Maximum Power Dissipation*
30
25
20 LT1587-1.5
15
10
5
0
50 60 70 80 90 100 110 120 130 140 150
CASE TEMPERATURE (˚C)
LT1587 • TPC07
*AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
3
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