Datasheet

TPS78915, TPS78918, TPS78925, TPS78928, TPS78930
ULTRALOW-POWER LOW-NOISE 100-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS300A – SEPTEMBER 2000 – REVISED MAY 2001
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 24
1
0 25 50 75 100
100
I
O
– Output Current – mA
ESR – Equivalent Series Resistance – Ω
10
Region of Instability
TPS78930
TYPICAL REGIONS OF STABILITY
EQUIVALENT SERIES RESISTANCE (ESR)
vs
OUTPUT CURRENT
0.1
Region of Stability
V
IN
= 4 V
V
O
= 3 V
C
o
= 4.7 µF
I
O
– Output Current – mA
1
0 25 50 75 100
100
ESR – Equivalent Series Resistance – Ω
10
V
IN
= 4 V
V
O
= 3 V
C
o
= 10 µF
TPS78930
TYPICAL REGIONS OF STABILITY
EQUIVALENT SERIES RESISTANCE (ESR)
vs
OUTPUT CURRENT
Region of Instability
Region of Stability
0.1
Figure 25