TPS40054, TPS40055, TPS40057

SLUS593I – DECEMBER 2003 – REVISED DECEMBER 2014

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6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range unless otherwise noted

(1)

UNI

MIN

MAX

T

VFB, SS/SD, SYNC

–0.3

6

VIN, SW

–0.3

45

Input voltage

SW, transient < 50 ns

–2.5

–5.0

–0.3

11

COMP, RT, SS/SD

–0.3

6

Output voltage

KFF

5

mA

Output current

RT

200

µA

150

°C

Operating junction temperature

–40

125

–55

150

°C

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating

Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

Device may shut down at junction temperatures below 150°C.

6.2 Recommended Operating Conditions

MIN

MAX

UNIT

Input voltage

8

40

V

Operating free-air temperature

–40

85

°C

6.3 Thermal Information

TPS4005x

HTSSOP

UNIT

16 PINS

Junction-to-ambient thermal resistance

38.3

Junction-to-case (top) thermal resistance

28

Junction-to-board thermal resistance

9

°C/W

Junction-to-top characterization parameter

0.4

Junction-to-board characterization parameter

8.9

Junction-to-case (bottom) thermal resistance

2.9

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

4

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TPS40054: Not Recommended For New Designs