
2
TPS61280A
,
TPS61281A
,
TPS61282A
SLVSCG9B –MAY 2014–REVISED SEPTEMBER 2016
www.ti.com
Product Folder Links: TPS61280A TPS61281A TPS61282A
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Table of Contents
1 Features.................................................................. 1
2 Applications ........................................................... 1
3 Description............................................................. 1
4 Simplified Schematic............................................. 1
5 Revision History..................................................... 2
6 Device Comparison Table..................................... 3
7 Description (continued)......................................... 3
8 Pin Configurations and Functions....................... 4
9 Specifications......................................................... 6
9.1 Absolute Maximum Ratings ..................................... 6
9.2 ESD Ratings.............................................................. 6
9.3 Recommended Operating Conditions....................... 6
9.4 Thermal Information.................................................. 7
9.5 Electrical Characteristics........................................... 7
9.6 I2C Interface Timing Characteristics ........................ 9
9.7 I2C Timing Diagrams............................................... 11
9.8 Typical Characteristics............................................ 12
10 Detailed Description ........................................... 14
10.1 Overview ............................................................... 14
10.2 Functional Block Diagram..................................... 15
10.3 Feature Description............................................... 16
10.4 Device Functional Modes...................................... 17
10.5 Programming......................................................... 22
10.6 Register Maps....................................................... 25
11 Application and Implementation........................ 33
11.1 Application Information.......................................... 33
11.2 Typical Application................................................ 34
12 Power Supply Recommendations ..................... 46
13 Layout................................................................... 46
13.1 Layout Guidelines ................................................. 46
13.2 Layout Example .................................................... 46
13.3 Thermal Information.............................................. 47
14 Device and Documentation Support................. 48
14.1 Device Support...................................................... 48
14.2 Related Links ........................................................ 48
14.3 Receiving Notification of Documentation Updates 48
14.4 Community Resources.......................................... 48
14.5 Trademarks........................................................... 48
14.6 Electrostatic Discharge Caution............................ 48
14.7 Glossary................................................................ 48
15 Mechanical, Packaging, and Orderable
Information........................................................... 49
15.1 Package Summary................................................ 49
15.2 Chip Scale Package Dimensions.......................... 49
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (September 2014) to Revision B Page
• Moved Storage temperature spec, Tstg from Handling Ratings table to Abs Max Ratings table; and, re-named
Handling ratings to ESD Ratings ........................................................................................................................................... 6
• Changed the device number in Figure 11 From TPS61281 and TPS61282 To: TPS61281A and TPS61282A................. 12
• Changed the device number in Figure 24 through Figure 26 From TPS6128x To: TPS6128xA......................................... 24
• Added legal Note at Application and Implementation section.............................................................................................. 33
• Added cross reference to the Third-Party Products Disclaimer. ......................................................................................... 37
• Corrected legend for Figure 30, Gray is VIN = 3.0 V, Red is VIN = 2.5 V. ............................................................................ 38
• Added cross reference to Third-Party Products Disclaimer ................................................................................................. 42
• Changed the markings on Figure 67 ................................................................................................................................... 49
Changes from Original (May 2014) to Revision A Page
• Changed the Device Information table Package From: DGBA To: DSBGA ......................................................................... 1
• Deleted the Package Marking Chip Code column from the Device Comparison Table. The information is found in
the POA at the end of the datasheet...................................................................................................................................... 3