Datasheet

TPS7201Q, TPS7225Q, TPS7230Q
TPS7233Q, TPS7248Q, TPS7250Q, TPS72xxY
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS102G – MARCH 1995 – REVISED JUNE 2000
24
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
LINE TRANSIENT RESPONSE
100
50
0
–50
–100
– Input Voltage – V
6.5
6.25
6
V
I
TPS7248/TPS7250
t – Time – µs
0 100 200 300 400 500
T
A
= 25°C
C
I
= 0
C
O
= 4.7 µF (CSR = 1 Ω)
– Change in Output Voltage – mV∆V
O
Figure 24
Figure 25
30
10
0
Ripple Rejection – dB
40
50
f – Frequency – Hz
RIPPLE REJECTION
vs
FREQUENCY
60
20
10 100 1 K 10 K 100 K 1 M 10 M
T
A
= 25°C
No Input
Capacitance Added
V
I
= V
O
+ 1 V
I
O
= 100 mA
C
O
= 4.7 µF (CSR = 1 Ω)
TPS7233
TPS7201 With
V
O
Programmed
to 2.5 V
TPS7248/
TPS7250
Figure 26
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
10
1
0.1
0.01
T
A
= 25°C
No Input Capacitance Added
V
I
= V
O
+ 1 V
Output Spectral Noise Density –
V/
Hzµ