Datasheet

TPS7415, TPS7418, TPS7425, TPS7430, TPS7433
FAST-TRANSIENT-RESPONSE USING SMALL OUTPUT CAPACITOR
200-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS212 – DECEMBER 1999
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
IN
EN
OUT
+
GND
C
O
ESR
R
L
V
I
To Load
Figure 18. Test Circuit for Typical Regions of Stability (Figure 19)
0.1
0.01
0 50 100 150 200
TYPICAL REGIONS OF STABILITY
EQUIVALENT SERIES RESISTANCE (ESR)
†
vs
OUTPUT CURRENT
10
100
I
O
– Output Current – mA
ESR – Equivalent Series Resistance –
Ω
1
Region of Instability
Figure 19
†
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
.