Datasheet

TPS76425, TPS76427, TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180B – MARCH 1999 – REVISED MAY 2001
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
V
O
Out
p
ut voltage
vs Output current 1
V
O
Output
voltage
vs Free-air temperature 2, 3, 4
V
n
Output noise vs Frequency 5
V
Out
p
ut noise voltage
vs Bypass capacitance 6
V
n
Output
noise
voltage
vs Load current 7
Z
o
Output impedance vs Frequency 8
V
DO
Dropout voltage vs Free-air temperature 9
Ripple rejection vs Frequency 10
Line transient response 11, 13
Load transient response 12, 14
Com
p
ensation series resistance (CSR)
vs Output current 15, 17
Compensation
series
resistance
(CSR)
vs Added ceramic capacitance 16, 18
Figure 1
I
O
– Output Current – mA (Pulse Tested)
TPS76425
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
2.5
2.485
2.475
30 90
2.495
2.49
2.48
60 120 180
2.505
0 150
V
I
= 3.5 V
C
I
= C
O
= 4.7 µF
T
A
= 25°C
– Output Voltage – V
V
O
Figure 2
T
A
– Free-Air Temperature – °C
TPS76425
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
2.49
2.47
–35 5
2.5
2.48
–15 25 125
2.53
–55
45 65
2.51
2.52
85 105
I
O
= 150 mA
I
O
= 1 mA
– Output Voltage – V
V
O
V
I
= 3.5 V
C
I
= C
O
= 4.7 µF