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PACKAGE DISSIPATION RATINGS

(1)

TPS54550

SLVS623A – MARCH 2006 – REVISED APRIL 2006

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

ORDERING INFORMATION

OUTPUT VOLTAGE

PACKAGE

-40°C to 125°C

Adjustable to 0.891 V

Plastic HTSSOP (PWP)

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

(2)

The PWP package is also available taped and reeled. Add an R suffix to the device type (i.e., TPS54550PWPR).

THERMAL IMPEDANCE

PACKAGE

JUNCTION-TO-AMBIENT

POWER RATING

POWER RATING

POWER RATING

40.1°C/W

2.49

1.37

1.00

(1)

See Figure 22 for power dissipation curves.

(2)

Test Board Conditions

a. 3 inch x 3 inch

b. Thickness: 0.062 inch

c. 2 PCB layers

d. 2 oz. Copper

e. See Figure 26, Figure 27 and TPS54550 evaluation module user's guide for layout suggestions.

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