317B Просмотр технического описания (PDF) - ON Semiconductor
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317B Datasheet PDF : 12 Pages
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LM317
0.4
0.2
0
-0.2
-0.4
-0.6
Vin = 15 V
Vout = 10 V
-0.8
IL = 0.5 A
IL = 1.5 A
-1.0
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 5. Load Regulation
4.0
3.0
TJ = 25°C
2.0
150°C
1.0
55°C
0
0
10
20
30
40
Vin-Vout, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (Vdc)
Figure 6. Current Limit
70
65
60
55
50
45
40
35
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 7. Adjustment Pin Current
3.0
∆Vout = 100 mV
2.5
IL = 1.5 A
1.0 A
2.0
500 mA
1.5
200 mA
20 mA
1.0
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 8. Dropout Voltage
1.26
1.25
1.24
1.23
1.22
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 9. Temperature Stability
5.0
4.5
4.0
TJ = -55°C
3.5
+25°C
3.0
+150°C
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
40
Vin-Vout, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (Vdc)
Figure 10. Minimum Operating Current
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