TYPICAL PERFORMANCE CHARACTERISTICS
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
160
150
140
130
120
100
90
3.3V Device
VIN= 4.3V
CL = 1.0µF
80
70
60
3.3V Device
C = 1.0µF
L
L
I
= 100µA
4
0
100
200
300
400
500
6
8
10
12
14
16
I
(mA)
V
(V)
L
IN
Ground Current vs Input Voltage
Ground Current vs Load Current
14.0
3.350
3.345
3.340
3.335
3.330
3.325
3.320
3.315
3.310
3.305
3.3V Device
V
= 4.3V
IN
12.0
10.0
C
= 1.0µF
L
8.0
6.0
4.0
2.0
0.0
3.3V Device
C = 1.0µF
L
L
I
= 100µA
3.300
3.295
3.290
4
6
8
10
12
14
16
0
100
200
300
400
500
V
(V)
IN
I
(mA)
L
Output Voltage vs Input Voltage
Ground Current vs Load Current in Dropout
July 2008 Rev F
SPX3819 500mA, Low Noise LDO Voltage Regulator
© 2008 Exar Corporation
3
EXAR [ EXAR CORPORATION ]
