TPS74401-EP

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SBVS122B – MARCH 2010 – REVISED SEPTEMBER 2010

ABSOLUTE MAXIMUM RATINGS

(1)

UNIT

Input voltage range

–0.3 to +6

V

Enable voltage range

–0.3 to +6

V

Power-good voltage range

–0.3 to +6

V

PG sink current

0 to +1.5

mA

SS pin voltage range

–0.3 to +6

V

Feedback pin voltage range

–0.3 to +6

V

Output voltage range

V

Maximum output current

Internally limited

Output short circuit duration

Indefinite

Operating junction temperature range

–55 to +125

°C

Storage junction temperature range

–65 to +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 conditions is not implied. Exposure to absolute-maximum-rated conditions for

extended periods may affect device reliability.

THERMAL INFORMATION

TPS74401-EP

UNITS

RGW (20 PINS)

Junction-to-ambient thermal resistance

36.3

Junction-to-case (top) thermal resistance

34.3

Junction-to-board thermal resistance

10.8

°C/W

Junction-to-top characterization parameter

0.3

Junction-to-board characterization parameter

11.9

Junction-to-case (bottom) thermal resistance

2.4

(1)

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

(2)

For thermal estimates of this device based on PCB copper area, see the TI PCB Thermal Calculator.

Copyright © 2010, Texas Instruments Incorporated

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