LP3996 datasheet(6/26 Pages) TI1

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LP3996

SNVS360B – NOVEMBER 2006 – REVISED JANUARY 2008

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Operating Ratings

(1) (2) (continued)

Ambient Temperature TARange

-40°C to 85°C

(3)

The maximum ambient temperature (TA(max)) is dependant on the maximum operating junction temperature (TJ(max-op) = 125°C), the

maximum power dissipation of the device in the application (PD(max)), and the junction to ambient thermal resistance of the part/package

in the application (

θJA), as given by the following equation: TA(max) = TJ(max-op) - (θJA × PD(max)).

Thermal Properties

(1)

Junction To Ambient Thermal Resistance(2)

θJALLP-10 Package

55°C/W

(1)

Absolute Maximum Ratings are limits beyond which damage can occur. Operating Ratings are conditions under which operation of the

device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated

test conditions, see the Electrical Characteristics tables.

(2)

Junction to ambient thermal resistance is dependant on the application and board layout. In applications where high maximum power

dissipation is possible, special care must be paid to thermal dissipation issues in board design.

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