Datasheet

TPS7101Q, TPS7133Q, TPS7148Q, TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092G – NOVEMBER 1994 – REVISED JANUARY 2003
19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 21
0.01
0.1
f – Frequency – Hz
TPS7101Q
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
1
10
10 10
2
10
3
10
4
10
5
C
O
= 4.7 µF (CSR = 1 Ω)
C
O
= 100 µF (CSR = 1 Ω)
C
O
= 10 µF (CSR = 1 Ω)
T
A
= 25°C
No Input Capacitance
V
I
= 3.5 V
V
O
Programmed to 2.5 V
Output Spectral Noise Density –
V/
Hzµ
Figure 22
10
f – Frequency – Hz
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
10
1
0.1
0.01
C
O
= 10 µF (CSR = 1 Ω)
C
O
= 100 µF (CSR = 1 Ω)
C
O
= 4.7 µF (CSR = 1 Ω)
T
A
= 25°C
No Input Capacitance
V
I
= 4.3 V
TPS7133Q
10
2
10
3
10
4
10
5
Output Spectral Noise Density –
V/
Hzµ
Figure 23
0.01
10 100 1 k 10 k 100 k
0.1
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
1
10
C
O
= 10 µF (CSR = 1 Ω)
C
O
= 4.7 µF (CSR = 1 Ω)
C
O
= 100 µF (CSR = 1 Ω)
f – Frequency – Hz
TPS7148Q
T
A
= 25°C
No Input Capacitance
V
I
= 5.85 V
Output Spectral Noise Density –
V/
Hzµ
Figure 24
10 100 1 k 10 k 100 k
C
O
= 10 µF (CSR = 1 Ω)
C
O
= 4.7 µF (CSR = 1 Ω)
C
O
= 100 µF (CSR = 1 Ω)
f – Frequency – Hz
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
TPS7150Q
10
1
0.1
0.01
T
A
= 25°C
No Input Capacitance
V
I
= 6 V
Output Spectral Noise Density –
V/
Hzµ