Datasheet

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IN
EN
OUT
+
GND
C
o
ESR
R
L
V
I
To Load
0.01
0 7.5
10
I
O
− Output Current − A
ESR − Equivalent Series Resistance − Ω
1
0.1
Region of Stability
0.015
Region of Instability
C
o
= 680 µF
T
J
= 25°C
1.5 3 4.5 6
0.01
0 7.5
10
I
O
− Output Current − A
1
0.2
ESR − Equivalent Series Resistance − Ω
C
o
= 47 µF
T
J
= 25°C
Region of Stability
Region of Instability
1.5 3 4.5 6
TPS75901, TPS75915
TPS75918, TPS75925, TPS75933
SLVS318E – DECEMBER 2000 – REVISED MARCH 2004
TYPICAL CHARACTERISTICS (continued)
Figure 18. Test Circuit for Typical Regions of Stability
(See Figure 19 and Figure 20 ) (Fixed Output Options)
TYPICAL REGION OF STABILITY TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE
(A)
EQUIVALENT SERIES RESISTANCE
(A)
vs vs
OUTPUT CURRENT OUTPUT CURRENT
Figure 19. Figure 20.
A. Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, ay
series resistance added externally, and PWB trace resistance to C
O
.
13