TYPICAL PERFORMANCE CHARACTERISTICS: Continued
3
.316
.314
350
300
250
200
150
100
50
3
3.3V Device
3.3V Device
V
= 4.3V
IN
CL = 1.0µF
C
= 1.0µF
L
3.312
3
3
3
.310
.308
.306
3
.304
3
.302
.300
0
3
0
100
200
300
400
500
0
100
200
300
400
500
I
(mA)
I
L
(mA)
L
Output Voltage vs Load Current
Dropout Voltage vs Load Current
130
120
110
100
90
360
340
320
300
280
260
240
220
200
3.3V Device
VIN= 4.3µF
CL= 1.0µF
IL = 100µA
3.3V Device
VIN = 4.3
CL= 1.0µF
I
L = 50mA
80
70
-40
-20
0
20
40
60
80
100
120
-40
-20
0
20
40
60
80
100
120
Temperature (°C)
Temperature (°C)
Ground Current vs Temperature with 50mA Load
Ground Current vs Temperature with 100µA Load
July 2008 Rev F
SPX3819 500mA, Low Noise LDO Voltage Regulator
© 2008 Exar Corporation
4
EXAR [ EXAR CORPORATION ]
