SPX1117T Exar Corporation, SPX1117T Datasheet - Page 4

• Manufacturer Part Number: SPX1117T
• Description: 800mA Low Dropout Voltage Regulator
• Manufacturer: Exar Corporation

Figure 5. Current Limit for SPX1117M3-3.3, Output
Voltage Deviation with I
Date: 8/25/04
Figure 3. Dropout Voltage vs Output Current for
SPX1117M3-3.3; V
Figure 1. Load Regulation for SPX1117M3-3.3;
V
IN
=4.8V
1.3
1.2
1.1
1.0
0.9
3.320
3.315
3.310
3.305
3.300
3.295
3.290
3.285
3.280
-100
100
100
0.5
1.5
1.0
0
0
10
0
200
125°C
22µF
0.1
300
0.2
IN
V
V
1
C
C
0.3
400
=4.8V, C
O
IN
IN
IN
OUT
=10mA
Output Current (mA)
=3.3V Fixed
=1µF Tan Cap
= 4.0V
=2.2µF Tan Cap
OUT
0.4
Indicating Current
Limit Starts
Time (ms)
500
=10mA to 1A Step
Io (mA)
100
0.5
OUT
600
0.6
=2.2µF
SPX1117 800mA Low Dropout Voltage Regulator
700
0.7
0.8 0.9
800
900
1000
1.0
1000
TYPICAL PERFORMANCE CHARACTERISTICS
4
Figure 4. Current Limit for SP1117M3-3.3; V
C
Limit
Figure 6. V
Figure 2. Line Regulation for SPX1117M3-3.3;
I
IN
OUT
=C
3.325
3.320
3.315
3.310
3.305
3.300
1.275
1.265
1.255
1.245
1.235
1.225
2.00
1.50
1.00
0.50
0.00
1.27
1.26
1.25
1.24
1.23
=10mA
OUT
-50
-50
4.5
=1µF, I
OUT
-30
-25
6.5
vs Temperature, V
OUT
-10
0
pulsed from 10mA to Current
8.5
10
Temp (
25
Vin (V)
© Copyright 2004 Sipex Corporation
30
Temp (C)
10.5
o
50
C)
50
IN
=2.5V, I
12.5
75
70
14.5
90
OUT
100
IN
1.25v Adj
=10mA
=4.8V,
110
125
130