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TC2574 Datasheet(PDF) 21 Page - TelCom Semiconductor, Inc

Part # TC2574
Description  0.5A Step-Down Switching Regulator
PDF  25 Pages
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Manufacturer  TELCOM [TelCom Semiconductor, Inc]
Direct Link  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC2574 Datasheet(HTML) 21 Page - TelCom Semiconductor, Inc

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TC2574
0.5A Step-Down Switching Regulator
TC2574-1 1/6/00
TYPICAL CHARACTERISTICS (Circuit of Figure 2)
VIN, INPUT VOLTAGE (V)
Figure 23. Normalized Output Voltage
Figure 24. Line Regulation
VIN= 20V
ILOAD = 100mA
Normalized at TJ = 25°C
Figure 25. Dropout Voltage
Figure 26. Current Limit
Figure 27. Quiescent Current
Figure 28. Standby Quiescent Current
ILOAD = 100mA
TJ = 25°C
3.3V , 5.0V and ADJ
12V
VIN = 25 V
ILOAD = 100mA
ILOAD = 500mA
VIN = 12 V
VIN = 40 V
L = 300
µH
ILOAD = 500mA
ILoad = 100mA
VOUT = 5.0 V
Measured at
Ground Pin
TJ = 25°C
VON/OFF = 5.0 V
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
2.0
1.5
1.0
0.5
0
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
20
18
16
14
12
10
8.0
6.0
4.0
200
180
160
140
120
100
80
60
40
20
0
125
100
75
60
25
0
–25
–50
40
35
30
25
20
15
10
5.0
0
125
100
75
60
25
0
–5
–50
125
100
75
60
25
0
–25
–50
40
35
30
25
20
15
10
5.0
0
125
100
75
60
25
0
–25
–50
TJ JUNCTION TEMPERATURE (°C)
TJ JUNCTION TEMPERATURE (°C)
VIN INPUT VOLTAGE (V)
TJ JUNCTION TEMPERATURE (°C)
TJ JUNCTION TEMPERATURE (°C)



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