REF

OSC

UVLO

TRIM

from enable logic

EN_BCK1

EN_BCK2

EN_BCK3

12-V DC Supply

from enable logic

from enable logic

BUCK1

BST1

LDRV

FB1

CMP1

VIN

PH2a

PH2b

FB2

CMP2

PH3a

PH3b

FB3

Vout BUCK3

CMP3

INTERNAL

VOLTAGE RAILS

TSD

Vout BUCK1

HDRV

12V

VINB and VINBQ pins must be tied

togther on PC board

Optional

V3p3

V6V

BST3

BST2

PH1

Vout BUCK2

BUCK3

VINB3

BUCK2

VINB2

TPS65232

SLVSA42 – FEBRUARY 2010

www.ti.com

FUNCTIONAL BLOCK DIAGRAM

ORDERABLE PART NUMBER

TOP-SIDE MARKING

48-pin (HTSSOP) - DCA

Reel of 2000

TPS65232A2DCAR

TPS65232

0°C to 85°C

40-pin (QFN) - RHA

Reel of 2500

TPS65232A0RHAR

TPS65232

(1)

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

web site at www.ti.com.

(2)

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

2

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Copyright © 2010, Texas Instruments Incorporated

Product Folder Link(s): TPS65232

Not Recommended for New Designs