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| 型號(hào)： | SPX3940T-1.8 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1A Low Dropout Voltage Regulator Fixed Output, Fast Response |
| 中文描述： | 1A低壓差線性穩(wěn)壓器固定輸出，快速響應(yīng) |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 213K |
| 代理商： | SPX3940T-1.8 |
3
Date: 5/25/04 SPX3940 1A Low Dropout Voltage Regulator
Copyright 2004 Sipex Corporation
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 2. Line Regulation
Figure 3. Load Regulation
Figure 4. Ground Current vs Load Current
Figure 5. Ground Current vs Input Voltage
Reference
Thermal
IN
OUT
GND
O.V
I
LIMIT
28V
R1
R2
1.240V
+
-
Ibias
BLOCK DIAGRAM
3.310
3.305
3.300
3.295
3.290
3.285
3.280
3.3V Device
μ
F
0
0.25
0.5
0.75
1
1.25
1.5
IL (A)
V
O
V
O
3.320
3.315
3.310
3.305
3.300
3.295
3.290
3.285
3.280
V
IN
(V)
4
6
8
10
12
14
16
3.3V Device
μ
F
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
0
0.25
0.5
0.75
IL (A)
1
1.25
1.5
I
G
3. = 4.3V
V
CL = 10
μ
F
100
95
90
85
80
75
70
-40
-20
0
20
40
V
IN
(V)
60
80
100
120
I
G
μ
A
3.3V Device
μ
F
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