Datasheet

TPS7415, TPS7418, TPS7425, TPS7430, TPS7433
FAST-TRANSIENT-RESPONSE USING SMALL OUTPUT CAPACITOR
200-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS212 – DECEMBER 1999
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 8
T
J
– Junction Temperature – °C
0
150
–50 50
V
I
=4.3 V
100
I
O
= 1 mA
TPS7433
GROUND CURRENT
vs
JUNCTION TEMPERATURE
Ground Current – Aµ
100
1
10000
1000
I
O
= 200 mA
10
I
O
= 100 mA
Figure 9
f – Frequency – Hz
1k 10k 100k
250
Output Spectral Noise Density
I
O
= 1 mA
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
2nV Hz
20nV Hz
200nV Hz
2µVHz
20µVHz
I
O
= 200 mA
V
I
= 4.3 V
C
L
= 1 µF
T
A
= 25°C
Figure 10
0.1
0.1 1 1000
10
0.01 10
1
f – Frequency – kHz
100
– Output Impedance –Z
o
Ω
OUTPUT IMPEDANCE
vs
FREQUENCY
V
I
= 4.3 V
C
L
= 1 µF
T
A
= 25°C
C
L
= 1 µF:
I
O
= 1 mA
C
L
= 1 µF
I
O
= 200 mA
100
0.01
Figure 11
T
J
– Junction Temperature – °C
100
0
10
150
50
110–40 60
200
250
V
I
= 2.9 V
– Dropout Voltage – mV
V
DO
TPS7430
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
200 mA
100 mA
10 mA