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EN

GND

ESR

ToLoad

V

IN

IN

OUT

C

OUT

+

R

L

0.01

0

10

1

Region of Instability

0.1

Region of Stability

0.05

V

=3.3V

C

=100 F

4.3V

T =+25

OUT

OUT

J

m

V

=

C

IN

°

1.5

1.0

0.5

I

OutputCurrent

A

-

-

OUT

0.01

0

10

1

0.1

1.5

1.0

0.5

I

OutputCurrent

A

-

-

OUT

Region of Instability

Region of Stability

V

=3.3V

C

=47 F

4.3V

T =+25

OUT

OUT

J

m

V

=

C

IN

°

TPS751xxQ

TPS753xxQ

SLVS241C – MARCH 2000 – REVISED OCTOBER 2007

TYPICAL CHARACTERISTICS (continued)

Test Circuit for Typical Regions of Stability (Figure 20 and Figure 21) (Fixed Output Options)

Figure 19.

TYPICAL REGION OF STABILITY

TYPICAL REGION OF STABILITY

vs OUTPUT CURRENT

vs OUTPUT CURRENT

Figure 20.

Figure 21.

(1). Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor,

Copyright © 2000–2007, Texas Instruments Incorporated

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