PTH12040WAH datasheet(4/28 Pages) TI1

Part #	PTH12040WAH

Description	50-A, 8-V TO 14-V INPUT, NON-ISOLATED WIDE-OUTPUT ADJUST POWER MODULE

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Manufacturer	TI1 [Texas Instruments]

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PTH12040W

SLTS237G – DECEMBER 2004 – REVISED MARCH 2009............................................................................................................................................... www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

TA = 25°C, VI = 12 V, VO = 3.3 V, CI = 1000 µF, CO = 660 µF, and IO = IOmax (unless otherwise stated)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Nonceramic

660(9)

14000(10)

Capacitance value

µF

CO

External output capacitance

Ceramic

400

Equivalent series resistance (non-ceramic)

2(11)

m

Ω

2.5

MTBF

Reliability

Per Bellcore TR-332 50% stress, TA = 40°C, ground benigh

106Hrs

(9)

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

transient response.

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

for further guidance.

(11) 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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