TYPICAL PERFORMANCE CHARACTERISTICS: Continued
350
300
3.3V Device
C
L
= 1.0µF
3.316
3.314
3.3V Device
V
IN
= 4.3V
C
L
= 1.0µF
Dropout (mV)
250
200
3.312
3.310
V
OUT
(V)
3.308
3.306
150
100
3.304
50
3.302
0
0
100
200
300
400
500
3.300
0
100
200
300
400
500
I
L
(mA)
Dropout Voltage vs Load Current
I
L
(mA)
Output Voltage vs Load Current
130
3.3V Device
V
IN
= 4.3µF
C
L
= 1.0µF
I
L
= 100µA
360
3.3V Device
V
IN
= 4.3
C
L
= 1.0µF
I
L
= 50mA
120
340
320
110
I
GND
(µA)
300
100
I
GND
(µA)
280
260
90
240
80
220
70
-40
-20
0
20
40
60
80
100
120
200
-40
-20
0
20
40
60
80
100
120
Temperature (°C)
Temperature (°C)
Ground Current vs Temperature with 100µA Load
Ground Current vs Temperature with 50mA Load
July 2008 Rev F
SPX3819 500mA, Low Noise LDO Voltage Regulator
© 2008 Exar Corporation
4
EXAR [ EXAR CORPORATION ]
