TPS79015, TPS79018, TPS79025, TPS79028, TPS79030
ULTRALOW-POWER LOW-NOISE 50-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS299B – SEPTEMBER 2000 – REVISED MAY 2001
TYPICAL CHARACTERISTICS
TPS79030
DROPOUT VOLTAGE
vs
TPS79030
RIPPLE REJECTION
vs
FREQUENCY
JUNCTION TEMPERATURE
110
100
90
80
70
60
50
40
30
20
75
65
55
45
35
25
V = 2.9 V
I
C
= 4.7 µF
o
I
= 1 mA
O
I
= 50 mA
O
I
= 50 mA
O
V = 4 V
I
C
C
I
= 1 mA
15
5
O
= 4.7 µF
o
(byp)
= 0.1 µF
–40 –25 –10
5
20 35 50 65 80
110 125
95
10
100
1k
10k
100k
1M
f – Frequency – Hz
Figure 14
T
A
– Junction Temperature – °C
Figure 13
TPS79030
RIPPLE REJECTION
vs
TPS79030
RIPPLE REJECTION
vs
FREQUENCY
FREQUENCY
100
90
80
70
60
50
40
30
20
100
90
80
70
60
50
40
30
20
I
= 1 mA
I
= 1 mA
O
O
I
= 50 mA
O
I
= 50 mA
O
V = 4 V
V = 4 V
= 4.7 µF
o
(byp)
I
C
C
I
C
C
= 4.7 µF
o
(byp)
= 0.01 µF
= 0.001 µF
10
100
1k
10k
100k
1M
10
100
1k
10k
100k
1M
f – Frequency – Hz
f – Frequency – Hz
Figure 15
Figure 16
9
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