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

TYPICAL CHARACTERISTICS

IN

EN

OUT

+

GND

CO

ESR

RL

VI

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

vs

OUTPUT CURRENT

10

100

IO – Output Current – mA

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 CO.

TPS7430: Not Recommended For New Designs