Datasheet

0.1
0.01
10
1
0 0.2
REGIONOFINSTABILITY
0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
V =3.3V
OUT1
C =220 Fm
O
15mW
I OutputCurrent- -
O
A
ESR EquivalentSeriesResistance - W-
0.1
0.01
10
1
0 0.2
REGIONOFINSTABILITY
0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
V =3.3V
OUT1
C =22 Fm
O
ESR EquivalentSeriesResistance - W-
50mW
I OutputCurrent- -
O
A
0.1
0.01
10
1
0 0.20.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
REGIONOFINSTABILITY
V =1.8V
OUT2
C =680 Fm
O
15mW
I OutputCurrent- -
O
A
ESR EquivalentSeriesResistance - W-
0.1
0.01
10
1
0 0.2
REGIONOFINSTABILITY
0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
V =1.8V
OUT2
C =47 Fm
O
50mW
I OutputCurrent- -
O
A
ESR EquivalentSeriesResistance - W-
TPS70445, TPS70448
TPS70451, TPS70458
TPS70402
www.ti.com SLVS307F –SEPTEMBER 2000–REVISED APRIL 2010
TYPICAL CHARACTERISTICS (continued)
TYPICAL REGION OF STABILITY TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE
(1)
EQUIVALENT SERIES RESISTANCE
(1)
vs vs
OUTPUT CURRENT OUTPUT CURRENT
Figure 29. Figure 30.
TYPICAL REGION OF STABILITY TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE
(1)
EQUIVALENT SERIES RESISTANCE
(1)
vs vs
OUTPUT CURRENT OUTPUT CURRENT
Figure 31. Figure 32.
(1)
Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any
series resistance added externally, and PWB trace resistance to C
O
.
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