TYPICAL PERFORMANCE CHARACTERISTICS: Continued
8.0
14.0
3.3V Device
V
IN
= 4.3µF
C
L
= 1.0µF
I
L
= 500mA
7.5
3.3V Device
V
IN
= 4.3µF
C
L
= 1.0µF
I
L
= 500mA
13.5
13.0
I
GND
(mA)
-40
-20
0
20
40
60
80
100
120
I
GND
(mA)
12.5
7.0
12.0
11.5
6.5
11.0
6.0
10.5
-40
-20
0
20
40
60
80
100
120
Temperature (°C)
Temperature (°C)
Ground Current vs Temperature with 500mA Load
Ground Current vs Temperature in Dropout
1.30
3.3V Device
C
L
= 1.0µF
I
L
= 100µA
1.25
3.400
3.380
3.360
3.340
3.3V Device
V
IN
= 4.3µF
C
L
= 1.0µF
I
L
= 500mA
V
EN,
On Threshold (V)
1.20
V
OUT
(V)
3.320
3.300
2.280
1.15
1.10
2.260
2.240
1.05
2.220
2.200
4
6
8
10
12
14
16
1.00
-40
-20
0
20
40
60
80
100
120
V
IN
(V)
Temperature (°C)
ENABLE Voltage, ON threshold, vs Input Voltage
Output Voltage vs Temperature
July 2008 Rev F
SPX3819 500mA, Low Noise LDO Voltage Regulator
© 2008 Exar Corporation
5
EXAR [ EXAR CORPORATION ]
