TPS40077PWPR datasheet(3/43 Pages) TI

No de pièce	TPS40077PWPR

Description	HIGH-EFFICIENCY, MIDRANGE-INPUT, SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD

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PACKAGE DISSIPATION RATINGS

TPS40077

SLUS714 – JANUARY 2007

Thermal Impedance,

TA = 25°C Power Rating

TA = 85°C Power Rating

Junction-to-Ambient(1)

Natural convection

37

°C/W

2.7 W

1.08 W

150 LFM airflow

30

°C/W

3.33 W

1.33 W

250 LFM airflow

28

°C/W

3.57 W

1.42 W

500 LFM airflow

26

°C/W

3.84 W

1.52 W

(1)

For more information on the board and the methods used to determine ratings, see the PowerPAD Thermally Enhanced Package

application report (SLMA002).

3

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