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SPX3940 Datasheet(PDF) 3 Page - Sipex Corporation

Part # SPX3940
Description  1A Low Dropout Voltage Regulator Fixed Output, Fast Response
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SPX3940 Datasheet(HTML) 3 Page - Sipex Corporation

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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
Shutdown
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
IL=4.3mA
CL=10µF
0
0.25
0.5
0.75
1
1.25
1.5
IL (A)
3.320
3.315
3.310
3.305
3.300
3.295
3.290
3.285
3.280
V
IN (V)
46
8
10
12
14
16
3.3V Device
IL = 10mA
CL = 10µF
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
00.25
0.5
0.75
1
1.25
1.5
IL (A)
3.3V Device
V
IN = 4.3V
CL = 10µF
100
95
90
85
80
75
70
-40
-20
0
20
40
60
80
100
120
V
IN (V)
3.3V Device
IL = 10 mA
CL = 10µF


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