ABSOLUTE MAXIMUM RATINGS

(1)

DISSIPATION RATINGS (2 oz. Trace and Copper Pad with Solder)

RECOMMENDED OPERATING CONDITIONS

TPS51222

www.ti.com............................................................................................................................................................................................... SLUS908 – JANUARY 2009

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

TPS51222

UNIT

VIN

–0.3 to 34

VBST1, VBST2

–0.3 to 39

VBST1, VBST2(3)

–0.3 to 7

SW1, SW2

–5 to 34

Input voltage range (2)

V

CSN1, CSN2, CSP1, CSP2

–1 to 13.5

EN, EN1, EN2, SKIPSEL1, SKIPSEL2, VFB1, VFB2

–0.3 to 7

V5SW

–1 to 7

V5SW (to VREG5)(4)

–7 to 7

DRVH1, DRVH2

–5 to 39

V

DRVH1, DRVH2(3)

–0.3 to 7

V

Output voltage range(2)

COMP1, COMP2, DRVL1, DRVL2, IMON1, IMON2, PGOOD1,

–0.3 to 7

V

PGOOD2, RF, VREF2, VREG5

VREG3

–0.3 to 3.6

V

TJ

Junction temperature

150

°C

Tstg

Storage temperature

–55 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 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)

All voltage values are with respect to the network ground terminal unless otherwise noted.

(3)

Voltage values are with respect to the corresponding SW terminal.

(4)

When EN is high and V5SW is grounded, or voltage is applied to V5SW when EN is low.

TA < 25°C

DERATING FACTOR

TA = 85°C

PACKAGE

POWER RATING

ABOVE TA = 25°C

POWER RATING

32-pin RTV

1.7 W

17 mW/°C

0.7 W

MIN

TYP

MAX

UNIT

VIN

4.5

32

V

Supply voltage

V5SW

–0.8

6

VBST1, VBST2

–0.1

37

DRVH1, DRVH2

–4.0

37

DRVH1, DRVH2 (wrt SW1, 2)

–0.1

6

SW1, SW2

–4.0

32

I/O voltage

V

CSP1, CSP2, CSN1, CSN2

–0.8

13

COMP1, COMP2, DRVL1, DRVL2, EN, EN1, EN2, IMON1, IMON2,

PGOOD1, PGOOD2, RF, SKIPSEL1, SKIPSEL2, VFB1, VFB2,

–0.1

6

VREF2, VREG5

VREG3

–0.1

3.5

TA

Operating free-air temperature

–40

85

°C

ORDERING INFORMATION

ORDERABLE PART

TA

PACKAGE(1)

TRANSPORT MEDIA

QUANTITY

ECO PLAN

NUMBER

TPS51222RTVT

Tape and Reel

250

Plastic Quad Flat Pack

Green (RoHS

-40°C to 85°C

(32-Pin QFN)

and no Sb/Br)

TPS51222RTVR

Tape and Reel

3000

(1)

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

website at www.ti.com.

Copyright © 2009, Texas Instruments Incorporated

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