Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - DC/DC voltage regulator Holder SOIC 8

TPS54231

SLUS851C –OCTOBER 2008–REVISED JULY 2012

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REVISION HISTORY

NOTE: Page numbers and equation reference numbers of current version may differ from previous versions.

Changes from Original (October 2008) to Revision A Page

• Added a new table to the Description - For additional design needs ................................................................................... 2

• Changed the ABSOLUTE MAXIMUM RATINGS table, Input Voltage - EN pin max value From: 5V to 6V ........................ 2

• Changed Equation 9 for calculating I

LPP

............................................................................................................................. 13

• Added new Equation 10 for calculating I

L(RMS)

.................................................................................................................... 13

• Changed Equation 11 for calculating I

L(PK)

.......................................................................................................................... 13

• Added peak-to-peak output voltage ripple descriptive text following Equation 13 ............................................................. 13

• Changed Equation 14 for calculating I

OUT(RMS)

.................................................................................................................... 14

• Changed Equation 16 for calculating F

........................................................................................................................... 14

• Changed Equation 25 for calculating R

............................................................................................................................. 15

• Changed Equation 28 for calculating R

............................................................................................................................. 16

• Changed Equation 29 and Equation 30 for calculating C

and C

, respectively. ............................................................... 16

Changes from Revision A (March 2010) to Revision B Page

• Removed SWIFT™ from the data sheet title ........................................................................................................................ 1

• Deleted Features Item: For SWIFT™ Documentation, See the TI Website at http://www.ti.com/swift ................................ 1

Changes from Revision B (February 2012) to Revision C Page

• Added 5.3 to the MAX column of the ELEC CHAR table, section CURRENT LIMIT ........................................................... 3

• Deleted Maximum Power Dissipation versus Junction Temperature graph ......................................................................... 7