Datasheet

LD39050xx Typical performance characteristics
13/24
Figure 22. Supply voltage rejection vs.
frequency
Figure 23. Noise output voltage vs. frequency
V
IN
= 1.8 V, V
OUT
= 0.8 V, V
EN
= 1 V, C
IN
= C
OUT
= 1 µF,
T
A
= 25 °C
Figure 24. Enable voltage vs. temperature Figure 25. Enable voltage vs. temperature
0
10
20
30
40
50
60
70
80
90
100
0 102030405060708090100
Freq [kHz]
SVR [dB]
I
OUT
= 10 mA
I
OUT
= 100 mA
V
IN
from 2.9 V to 3.1 V, V
EN
to V
IN
, V
OUT
= 2.5 V, C
IN
= C
OUT
= 1 µF
0
10
20
30
40
50
60
70
80
90
100
0 102030405060708090100
Freq [kHz]
SVR [dB]
I
OUT
= 10 mA
I
OUT
= 100 mA
V
IN
from 2.9 V to 3.1 V, V
EN
to V
IN
, V
OUT
= 2.5 V, C
IN
= C
OUT
= 1 µF
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05
f [Hz]
eN [uV/SQRT(Hz)]
A P - IOUT = 10 0 mA
A P - IOUT = 10 mA
A P - IOUT = 1m
A P - IOUT = 0 A
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-50 -25 0 25 50 75 100 125 150
T [°C]
V
EN
[V]
High
Low
V
IN
= 3.5 V I
OUT
= 10 mA, V
OUT
= 2.5 V, C
IN
= C
OUT
= 1 µF
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-50 -25 0 25 50 75 100 125 150
T [°C]
V
EN
[V]
High
Low
V
IN
= 3.5 V I
OUT
= 10 mA, V
OUT
= 2.5 V, C
IN
= C
OUT
= 1 µF
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-50 -25 0 25 50 75 100 125 150
T [°C]
V
EN
[V]
High
Low
V
IN
= 5.5 V I
OUT
= 10 mA V
OUT
= 2.5 V, C
IN
= C
OUT
= 1 µF
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-50 -25 0 25 50 75 100 125 150
T [°C]
V
EN
[V]
High
Low
V
IN
= 5.5 V I
OUT
= 10 mA V
OUT
= 2.5 V, C
IN
= C
OUT
= 1 µF
Figure 26. Load transient Figure 27. Load transient
V
EN
= V
IN
=1.8 V, I
OUT
= from10 mA to 0.5 A, C
IN
= C
OUT
= 1
µF, V
OUT
= 0.8 V
V
EN
= V
IN
= 3.5V, I
OUT
from 10 mA to 0.5 A, V
OUT
= 2.5 V,
C
IN
= C
OUT
= 1 µF
I
OUT
V
OUT
I
OUT
V
OUT
I
OUT
V
OUT
I
OUT
V
OUT