Datasheet

    
    
    
SLVS181H − DECEMBER 1998 − REVISED JANUARY 2004
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11
TYPICAL CHARACTERISTICS
Figure 16
0.1
0.01
0 50 100 150 200 250
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)
(1)
vs
OUTPUT CURRENT
10
100
I
O
− Output Current − mA
CSR − Compensation Series Resistance − Ω
1
Region of Instability
C
O
= 4.7 µF
T
J
= 25°C
Region of Instability
Figure 17
0.1
0.01
0 0.1 0.2 0.3 0.4 0.5
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)
(1)
vs
ADDED CERAMIC CAPACITANCE
10
100
Added Ceramic Capacitance − µF
0.6 0.7 0.8 0.9 1
1
Region of Instability
Region of Instability
CSR − Compensation Series Resistance − Ω
I = 150 mA
C
O
= 4.7 µF
T
J
= 25°C
Figure 18
0.1
0.01
0 50 100 150 200 250
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)
(1)
vs
OUTPUT CURRENT
10
100
I
O
− Output Current − mA
1
Region of Instability
CSR − Compensation Series Resistance − Ω
Region of Instability
C
O
= 10 µF
Figure 19
0.1
0.01
0 0.1 0.2 0.3 0.4 0.5
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)
(1)
vs
ADDED CERAMIC CAPACITANCE
10
100
Added Ceramic Capacitance − µF
1
0.6 0.7 0.8 0.9 1
CSR − Compensation Series Resistance − Ω
C
O
= 10 µF
Region of Instability
Region of Instability
(1)
CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace
resistance to C
O
.