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LM2575 Datasheet(PDF) 5 Page - ON Semiconductor

Part No. LM2575
Description  1.0 A, Adjustable Output Voltage, Step−Down Switching Regulator
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LM2575 Datasheet(HTML) 5 Page - ON Semiconductor

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LM2575
http://onsemi.com
5
TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 14)
0
20
−50
3.0
0
−50
2.0
0
1.2
−50
Vin, INPUT VOLTAGE (V)
TJ, JUNCTION TEMPERATURE (°C)
Vin, INPUT VOLTAGE (V)
TJ, JUNCTION TEMPERATURE (°C)
SWITCH CURRENT (A)
Figure 2. Normalized Output Voltage
TJ, JUNCTION TEMPERATURE (°C)
Figure 3. Line Regulation
Vin = 20 V
ILoad = 200 mA
Normalized at
TJ = 25°C
Figure 4. Switch Saturation Voltage
Figure 5. Current Limit
Figure 6. Dropout Voltage
Figure 7. Quiescent Current
ILoad = 200 mA
TJ = 25°C
3.3 V, 5.0 V and Adj
12 V and 15 V
25
°C
Vin = 25 V
Vout = 5.0 V
Measured at
Ground Pin
TJ = 25°C
ILoad = 200 mA
ILoad = 1.0 A
DVout = 5%
Rind = 0.2 W
125
°C
−40
°C
5.0
−25
10
0
20
15
25
25
75
50
35
30
40
100
125
0.8
0.4
0.4
0
0
−0.2
−0.4
0.6
0.2
1.0
0.6
0.2
−0.2
−0.6
2.5
1.5
0.5
0
2.0
1.0
14
10
6.0
4.0
18
12
8.0
16
1.1
0.9
0.7
0.5
1.0
0.8
0.6
1.2
0.8
0.4
1.0
0.6
1.8
1.4
1.6
0.4
−25
0.1
0
0.2
25
0.3
50
0.4
75
0.5
100
0.6
125
0.7
5.0
−25
10
0
15
25
20
50
25
75
30
100
35
125
0.8
0.9
1.0
40
ILoad = 200 mA
ILoad = 1.0 A


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