Datasheet

TPS76425, TPS76427, TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180B – MARCH 1999 – REVISED MAY 2001
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 3
T
A
– Free-Air Temperature – °C
100
10
–35 5–15 25 125–55
45 65
1000
85 105
TPS76425
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
Ground Current – Aµ
V
I
= 6 V
C
I
= C
O
= 4.7 µF
I
O
= 0 mA and 150 mA
Figure 4
T
A
– Free-Air Temperature – °C
TPS76433
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
3.3
3.28
3.26
–35 5
3.31
3.29
3.27
–15 25 125
3.34
–55 45 65
3.32
3.33
85 105
I
O
= 150 mA
I
O
= 1 mA
– Output Voltage – V
V
O
V
I
= 4.3 V
Figure 5
C
O
= 1 µF
I
O
= 1 mA
V
O
= 3.3 V
C
(BYPASS)
= 0.1 µF
T
A
= 25°C
C
O
= 1 µF
I
O
= 150 mA
C
O
= 10 µF
I
O
= 150 mA
0.33
0
100 1.1 k 10.1 k
Output Noise –
f – Frequency – Hz
OUTPUT NOISE
vs
FREQUENCY
3.3
100.1 k
V/ Hzµ
0.033
C
O
= 10 µF
I
O
= 1 mA
Figure 6
Bypass Capacitance – µF
10
–3
10
–2
10
–1
OUTPUT NOISE VOLTAGE
vs
BYPASS CAPACITANCE
C
O
= 10 µF
I
O
= 150 mA
f = 10 Hz to 100 kHz
T
A
= 25°C
20
30
40
50
60
70
80
Vµ– Output Noise Voltage –
V
n