LM2596 Просмотр технического описания (PDF) - ON Semiconductor
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LM2596 Datasheet PDF : 25 Pages
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LM2596
TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 15)
200
180
160
140
TJ = 25°C
120
100
80
60
40
20
0
0
5
10 15 20 25 30 35 40
Vin, INPUT VOLTAGE (V)
Figure 8. Standby Quiescent Current
1.6
1.4
1.2 -40°C
1.0
0.8 25°C
0.6
125°C
0.4
0.2
0
0
0.5
1.0
1.5
2.0
2.5
3.0
SWITCH CURRENT (A)
Figure 9. Switch Saturation Voltage
1.0
0.0
−1.0
−2.0
−3.0
−4.0
−5.0
−6.0
−7.0
−8.0
−9.0
−50
VIN = 12 V Normalized
at 25°C
−25 0
25
50
75
100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 10. Switching Frequency
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
Vout ' 1.23 V
ILoad = 500 mA
1.0
0.5
0
-50 -25
0
25
50
75
100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 11. Minimum Supply Operating Voltage
100
80
60
40
20
0
-20
-40
-60
-80
-100
-50 -25
0
25
50
75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 12. Feedback Pin Current
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