Datasheet

  
   
SLVS167C − SEPTEMBER 1998 − REVISED − MAY 1999
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 23
ADJUSTABLE REGULATOR TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
1
0.1
10
0 200 400 600
100
0.01
I
O
− Output Current − mA
100 300 500 700
Region of Instability
Region of Instability
T
A
= 25°C
V
I
= V
O
+ 1 V
C
o
= 10 µF
No added ceramic
capacitance.
No input capacitor.
CSR − Compensation Series Resistance − Ω
Figure 24
3.3−V REGULATOR TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
1
0.1
10
0 200 400 600
100
0.01
I
O
− Output Current − mA
100 300 500 700
Region of Instability
Region of Instability
T
A
= 25°C
V
I
= V
O
+ 1 V
C
o
= 10 µF
No added ceramic
capacitance.
No input capacitor.
CSR − Compensation Series Resistance − Ω
Figure 25
ADJUSTABLE REGULATOR TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
1
0.1
10
0 0.4 0.8
100
0.01
Added Ceramic Capacitance − µF
0.2 0.6 1
Region of Instability
Region of Instability
T
A
= 25°C
V
I
= V
O
+ 1 V
I
O
= 750 mA
C
o
= 10 µF
No input capacitance.
CSR − Compensation Series Resistance − Ω
Figure 26
3.3-V REGULATOR TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
1
0.1
10
0 0.4 0.8
100
0.01
Added Ceramic Capacitance − µF
0.2 0.6 1
Region of Instability
Region of Instability
T
A
= 25°C
V
I
= V
O
+ 1 V
I
O
= 750 mA
C
o
= 10 µF
No input capacitance.
CSR − Compensation Series Resistance − Ω