SPX3940 View Datasheet(PDF) - Signal Processing Technologies
Part Name
Description
Manufacturer
SPX3940 Datasheet PDF : 11 Pages
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IN
1.240V
Reference
+
-
Ibias
Thermal
Shutdown
O.V
ILIMIT
28V
BLOCK DIAGRAM
OUT
R1
R2
GND
TYPICAL PERFORMANCE CHARACTERISTICS
3.320
3.315
3.310
3.305
3.300
3.295
3.290
3.285
3.3V Device
IL = 10mA
CL = 10µF
3.280
4
6
8
10
12
14
16
VIN (V)
Figure 2. Line Regulation
3.310
3.305
3.300
3.295
3.290
3.285
3.3V Device
IL=4.3mA
CL=10µF
3.280
0
0.25
0.5
0.75
1
1.25
1.5
IL (A)
Figure 3. Load Regulation
80.0
70.0
60.0
50.0
40.0
30.0
20.0
3.3V Device
10.0
CVILN
=
=
4.3V
10µF
0.0
0
0.25
0.5
0.75
1
1.25
1.5
IL (A)
Figure 4. Ground Current vs Load Current
100
95
90
85
80
75
70
-40
-20
3.3V Device
IL = 10 mA
CL = 10µF
0
20
40
60
80 100 120
VIN (V)
Figure 5. Ground Current vs Input Voltage
Date: 5/25/04
SPX3940 1A Low Dropout Voltage Regulator
3
© Copyright 2004 Sipex Corporation
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