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参数资料
| 型号： | TC2576-3.3VAT |
| 元件分类： | 稳压器 |
| 英文描述： | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| 封装： | TO-220, 5 PIN |
| 文件页数： | 14/25页 |
| 文件大小： | 213K |
| 代理商： | TC2576-3.3VAT |
21
TC2576
TC2576-2 12/04/00
3.0A Step-Down Switching Regulator
2001 Microchip Technology Inc.
DS21399A
TYPICAL CHARACTERISTICS (Circuit of Figure 2)
VIN, INPUT VOLTAGE (V)
Figure 23. Normalized Output Voltage
Figure 24. Line Regulation
VIN= 20V
ILOAD = 500mA
Normalized at TJ = 25°C
Figure 25. Dropout Voltage
Figure 26. Current Limit
Figure 27. Quiescent Current
Figure 28. Standby Quiescent Current
ILOAD = 500mA
TJ = 25°C
3.3V , 5.0V and ADJ
12V
ILOAD = 200mA
ILOAD = 3.0A
VIN = 12V
VIN = 40 V
VOUT = 5.0V
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
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
40
35
30
25
20
15
10
5.0
0
125
100
75
60
25
0
–25
–50
V
OUT,OUTPUT
VOLTAGE
CHANGE
(%)
I STBY
,STANDABY
CURRENT
(
A)
I Q
,QUIESCENT
CURRENT
(mA)
V
OUT,OUTPUT
VOLTAGE
CHANGE
(%)
TJ JUNCTION TEMPERATURE (°C)
VIN INPUT VOLTAGE (V)
TJ JUNCTION TEMPERATURE (°C)
I O
,OUTPUT
CURRENT
(A)
TJ, JUNCTION TEMPERATURE (°C)
INPUT
–OUTPUT
DIFFERENTIAL
(V)
TJ, JUNCTION TEMPERATURE (°C)
L1 = 150
H
RIND = 0.1
ILOAD = 500 mA
ILOAD = 3.0 A
2.0
1.5
1.0
0.5
0
6.5
6.0
5.5
5.0
4.5
4.0
125
100
75
50
25
0
–25
–50
125
100
75
50
25
0
–25
–50
VIN = 25 V
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