TPS79015, TPS79018, TPS79025, TPS79028, TPS79030
ULTRALOW-POWER LOW-NOISE 50-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS299B – SEPTEMBER 2000 – REVISED MAY 2001
TYPICAL CHARACTERISTICS
TPS79025
TPS79030
OUTPUT VOLTAGE
vs
JUNCTION TEMPERATURE
OUTPUT VOLTAGE
vs
JUNCTION TEMPERATURE
2.515
2.510
3.015
V = 3.5 V
V = 4 V
I
I
C
= 4.7 µF
C
= 4.7 µF
o
o
3.010
3.005
3.000
2.995
2.990
2.985
I
= 1 mA
O
2.505
2.500
2.495
2.490
2.485
I
O
= 1 mA
I
O
= 50 mA
I
O
= 50 mA
–40 –25 –10
5
20 35 50 65 80 95 110 125
–40 –25 –10
5
20 35 50 65 80
110 125
95
T
J
– Junction Temperature – °C
T
J
– Junction Temperature – °C
Figure 5
Figure 6
TPS79030
TPS79030
GROUND CURRENT
vs
JUNCTION TEMPERATURE
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
22
21
20
19
18
17
16
15
1200
1000
V = 4 V
I
V = 4 V
I
C
C
= 4.7 µF
C
= 4.7 µF
o
(byp)
o
= 0.1 µF
800
I
= 50 mA
O
I
O
= 1 mA
600
400
I
= 50 mA
O
I
O
= 1 mA
200
0
–40 –25 –10
5
20 35 50 65 80
110 125
95
100
1k
10k
100k
T
J
– Junction Temperature – °C
f – Frequency – Hz
Figure 7
Figure 8
7
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