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PTH04040W

SLTS238A – SEPTEMBER 2005 – REVISED FEBRUARY 2006

ELECTRICAL CHARACTERISTICS (continued)

T

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Nonceramic

Capacitance value

µF

External output capacitance

Ceramic

400

Equivalent series resistance (nonceramic)

m

Ω

2.1

MTBF

Reliability

(8)

A minimum value of output capacitance is required for proper operation. Adding additional capacitance at the load will further improve

transient response.

(9)

This is the calculated maximum. The minimum ESR requirement often results in a lower value. See the Application Information section

for further guidance.

(10) This is the typcial ESR for all the electrolytic (nonceramic) output capacitance. Use 4 m

Ω as the minimum when using max-ESR values

to calculate.

4

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