TPS56121

SLUSAH4B – MARCH 2011 – REVISED MARCH 2013

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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

PACKAGE

MINIMUM QUANTITY

ORDERABLE

PINS

TRANSPORT MEDIA

NUMBER

250

TPS56121DQPT

-40°C to 150°C

Plastic QFN (DQP)

22

Tape-and-reel

2500

TPS56121DQPR

ABSOLUTE MAXIMUM RATINGS

over operating free-air temperature range (unless otherwise noted)

(1)

VALUE

UNIT

MIN

TYP

VDD, VIN

–0.3

16.5

V

SW

–3

25

SW (< 100 ns pulse width, 10 µJ)

-5

Voltage Range

BOOT

–0.3

30

BOOT-SW (differential from BOOT to SW)

–0.3

7

COMP, PGOOD, FB, BP, EN/SS, ILIM

–0.3

7

(HBM) QSS 009-105 (JESD22-A114A)

2

kV

Electrostatic discharge

(CBM) QSS 009-147 (JESD22-C101B.01)

1.5

–40

150

°C

Temperature

–55

150

(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 condition beyond those included under Recommended Operating

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

THERMAL INFORMATION

TPS56121

PQFN

UNITS

22 PINS

Junction-to-ambient thermal resistance

34.6

Junction-to-case (top) thermal resistance

22.9

Junction-to-top characterization parameter

0.6

°C/W

Junction-to-board characterization parameter

5.0

Junction-to-case (bottom) thermal resistance

0.3

(1)

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

RECOMMENDED OPERATING CONDITIONS

over operating free-air temperature range (unless otherwise noted)

MIN

TYP

MAX UNIT

VIN Input voltage

4.5

14

V

Operating junction temperature

–40

125

°C

2

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