L5970D(2003) 데이터 시트보기 (PDF) - STMicroelectronics
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L5970D Datasheet PDF : 10 Pages
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L5970D
Figure 1. Junction Temperature vs. Output
Current (SO8) *)
Tj(°C)
130
120
110
100
90
80
70
60
50
40
30
20
0.2
Vcc=5V
Tamb=25°C
0.4 0.6
0.8 1
Io(A)
Vo=3.3V
Vo=2.5V
Vo=1.8V
1.2 1.4 1.6
Figure 2. Junction Temperature vs. Output
Current (SO8) *)
Tj(°C)
130
120
110
100
90
80
70
60
50
40
30
20
Vcc=12V
Tamb=25°C
0.2 0.4 0.6
0.8 1
Io(A)
Vo=5V Vo=3.3V
Vo=2.5V
1.2 1.4 1.6
Figure 3. Junction Temperature vs. Output
Current (SO8) *)
Tj(°C)
140
Vo=18V Vo=12V
120
100 Vcc=24V
Tamb=25°C
80
Vo=5V
60
40
20
0
0.2 0.4 0.6 0.8
1
Io(A)
1.2 1.4
Figure 4. Load Regulation
Vo (V)
3.312
3.308
3.304
3.3
Vcc = 12V
Vo = 3.3V
Tj = 25°C
3.296
3.292
3.288
3.284
Tj = 125°C
3.28
3.276
0
0.5
1
1.5
Io (A)
Figure 5. Line Regulation
Vo (V)
3.312
3.308
3.304
3.3
3.296
Vcc = 12V
Vo = 3.3V
Tj = 25°C
3.292
3.288
3.284
Tj = 125°C
3.28
3.276
0
10
20
30
40
Vcc (V)
Figure 6. Output Voltage vs. Junction
Temperature
Vo (V)
1.25
1.24
1.23
1.22
Vcc = 12V
1.21
Vcc=12V
1.2
-50
0
50
100
150
Tj (°C)
*) Package mounted on demoboard
4/10
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