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PTH08T255W

Texas

Instruments

PTH08T255W

ELECTRICAL CHARACTERISTICS

PTH08T255W

(continued)

PARAMETER

TEST CONDITIONS

PTH08T255W

UNIT

MIN

TYP

MAX

Capacitance Value

Nonceramic

µF

w/o TurboTrans

Ceramic

1000

Equivalent series resistance (non-ceramic)

3

m

Ω

External output capacitance

see table

Capacitance Value

µF

(6) (8)

w/ TurboTrans

1000

µF×m

Ω

Per Telcordia SR-332, 50% stress,

MTBF

Reliability

2.56

(6)

1000 µF of external non-ceramic output capacitance is required for basic operation. Adding additional capacitance at the load further

improves transient response. Up to 1000 µF of ceramic capacitance may be added in addition to the required non-ceramic capacitance.

See the Capacitor Application Information section and the TuboTrans Technology section for more guidance.

(7)

This is the calculated maximum when not using TurboTrans™ technology. This value includes both ceramic and non-ceramic

capacitors. The minimum ESR requirement often results in a lower value of output capacitance. See the Capacitor Application

Information section for further guidance.

(8)

When using TurboTrans™ technology, a minimum value of output capacitance is required for proper operation. Additionally, low ESR

capacitors are required for proper operation. See the TurboTrans Technology section for further guidance.

Copyright © 2008, Texas Instruments Incorporated

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