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DISSIPATION RATINGS

RECOMMENDED OPERATING CONDITIONS

TPS70845, TPS70848

TPS70851, TPS70858

TPS70802

SLVS301D – JUNE 2000 – REVISED DECEMBER 2007

DERATING

PACKAGE

AIR FLOW (CFM)

FACTOR

0

3.067 W

30.67 mW/

°C

1.687 W

1.227 W

250

4.115 W

41.15 mW/

°C

2.265 W

1.646 W

(1)

This parameter is measured with the recommended copper heat sink pattern on a 4-layer PCB, 1 oz. copper on a 4-in by 4-in ground

layer. Simultaneous and continuous operation of both regulator outputs at full load may exceed the power dissipation rating of the PWP

package. For more information, refer to TI technical brief SLMA002.

Over operating temperature range (unless otherwise noted).

MIN

MAX

UNIT

2.7

6

V

0

500

mA

0

250

mA

Output voltage range (for adjustable option)

1.22

5.5

V

–40

+125

°C

(1)

4

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