Datasheet




SGLS264A − SEPTEMBER 2004 − REVISED JUNE 2008
6
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TYPICAL CHARACTERISTICS
3.285
3.290
3.295
3.300
3.305
3.310
3.315
0246810
I
O
− Output Current − mA
− Output Voltage − V
V
O
TPS79733
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
V
I
= 4.3 V
C
o
= 1 µF
T
A
= 25°C
Figure 1
1.785
1.790
1.795
1.800
1.805
1.810
1.815
0246810
I
O
− Output Current − mA
− Output Voltage − V
V
O
TPS79718
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
V
I
= 2.8 V
C
o
= 1 µF
T
A
= 25°C
Figure 2
3.25
3.26
3.27
3.28
3.29
3.30
3.31
3.32
3.33
3.34
3.35
−40 −15 10 35 60 85
− Output Voltage − V
V
O
T
A
− Free-Air Temperature − °C
TPS79733
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
I
O
= 1 mA
V
I
= 4.3 V
C
o
= 1 µF
I
O
= 10 mA
Figure 3
1.78
1.79
1.80
1.81
1.82
−40 −15 10 35 60 85
− Output Voltage − V
V
O
T
A
− Free-Air Temperature − °C
TPS79718
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
I
O
= 1 mA
V
I
= 2.8 V
C
o
= 1 µF
I
O
= 10 mA
Figure 4
0.50
0.75
1
1.25
1.50
1.75
2
−40 −15 10 35 60
T
A
− Free-Air Temperature − °C
TPS79733
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
Ground Current − Aµ
85
V
I
= 4.3 V
V
O
= 3.3 V
C
o
= 1 µF
I
O
= 10 mA
Figure 5
0
2
4
6
8
10
100 1 k 10 k 100
k
I
O
= 10 mA
I
O
= 1 mA
f − Frequency − Hz
V
I
= 2.8 V
V
O
= 1.8 V
C
o
= 1 µF
TPS79718
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
nV/ HzOutput Spectral Noise Density −
Figure 6
f − Frequency − Hz
− Output Impedance −Z
o
Ω
0
40
25
5
35
10
15
30
V
I
= 4.3 V
V
O
= 3.3 V
C
o
= 1 µF
T
J
= 25°C
I
O
= 1 mA
100 1 M10 1k 10k 100k 10 M
I
O
= 10 mA
20
OUTPUT IMPEDANCE
vs
FREQUENCY
Figure 7
0
20
40
60
80
100
120
140
−40 −25 −10 5 20 35 50 65 8
0
T
A
− Free-Air Temperature − °C
− Dropout Voltage − mV
V
DO
V
I
= 3.2 V
C
o
= 1 µF
I
O
= 10 mA
I
O
= 1 mA
TPS79733
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
Figure 8
POWER UP / POWER DOWN
V
I
V
O
V
O
= 3.3 V
R
L
= 330 Ω
t − Time − ms
V
O
− Output Voltage − V
3
0302010 40 50 7060 80 90 100
1
2
0
6
4
5
7
Figure 9
V
I
− Input Voltage − V