Datasheet

       
       
    
SLVS230G − SEPTEMBER 1999 − REVISED JANUARY 2004
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11
TYPICAL CHARACTERISTICS
Figure 10
TPS77x33
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
f − Frequency − Hz
10
2
10
3
10
4
10
5
10
−5
10
−6
10
−8
10
−7
I
O
= 7 mA
I
O
= 750 mA
V
I
= 4.3 V
C
o
= 10 µF
T
A
= 25°C
V HzOutput Spectral Noise Density − µ
Figure 11
f − Frequency − kHz
− Output Impedance −Z
o
Ω
10
1
10
2
10
5
10
6
0
10
−1
10
−2
10
4
10
3
I
O
= 1 mA
I
O
= 750 mA
V
I
= 4.3 V
C
o
= 10 µF
T
A
= 25°C
TPS77x33
OUTPUT IMPEDANCE
vs
FREQUENCY
Figure 12
V
I
− Input Voltage − V
600
300
0
34
500
400
200
3.52.5
− Dropout Voltage − mV
100
4.5 5
V
DO
T
A
= 125°C
T
A
= −40°C
T
A
= 25°C
I
O
= 750 mA
TPS77x01
DROPOUT VOLTAGE
vs
INPUT VOLTAGE
Figure 13
T
A
− Free-Air Temperature − °C
−40 0 20 120
10
3
−60 40 60 80 100
− Dropout Voltage − mV
V
DO
TPS77x33
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
10
2
10
1
10
0
10
−1
10
−2
−20 140
I
O
= 750 mA
I
O
= 10 mA
I
O
= 0
C
o
= 10 µF