Datasheet

TPS78915, TPS78918, TPS78925, TPS78928, TPS78930
ULTRALOW-POWER LOW-NOISE 100-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS300A – SEPTEMBER 2000 – REVISED MAY 2001
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 17
V
I
= 4 V
C
O
= 4.7 µF
3
TPS78930
OUTPUT VOLTAGE, ENABLE VOLTAGE
vs
TIME (START-UP)
V
O
t – Time – ms
032145768910
– Output Voltage – V
V
I
= 4 V
V
O
= 3 V
I
O
= 100 mA
C
(byp)
= 0.01 µF
C
o
= 10 µF
T
J
= 25°C
Enable Voltage – V
1
5
0
0
2
Figure 18
3
TPS78930
OUTPUT VOLTAGE, ENABLE VOLTAGE
vs
TIME (START-UP)
V
O
t – Time – ms
0 0.60.40.2 0.8 1 1.41.2 1.6 1.8 2
– Output Voltage – V
V
I
= 4 V
V
O
= 3 V
I
O
= 100 mA
C
(byp)
= 0.001 µF
C
o
= 10 µF
T
J
= 25°C
Enable Voltage – V
1
5
0
0
2
Figure 19
3
TPS78930
OUTPUT VOLTAGE, ENABLE VOLTAGE
vs
TIME (START-UP)
V
O
t – Time – ms
0302010 40 50 7060 80 90 100
– Output Voltage – V
V
I
= 4 V
V
O
= 3 V
I
O
= 100 mA
C
o
= 10 µF
T
J
= 25°C
Enable Voltage – V
1
5
0
0
2
C
(byp)
= 0.001 µF
C
(byp)
= 0.1 µF
C
(byp)
= 0.01 µF