Datasheet

TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A – MAY 1997 – REVISED MAY 1998
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
1
0.1
0 0.1 0.2 0.3 0.4 0.5 0.6
TYPICAL REGIONS OF STABILITY
†
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
0.7 0.8 0.9 1
10
100
Added Ceramic Capacitance – µF
Region of Instability
V
I
= 3.5 V
No Input Capacitance
C
o
= 10 µF
I
O
= 500 mA
T
A
= 25°C
Compensation Series Resistance – ΩCSR –
Figure 14
†
CSR values below 0.1 Ω are not recommended.
IN
EN
OUT
SENSE
+
GND
C
o
CSR
C
cer
(see Note A)
R
L
V
I
NOTE A: Ceramic capacitor
To Load
Figure 15. Test Circuit for Typical Regions of Stability (Figures 7 through 14)