TPS61220, TPS61221, TPS61222

SLVS776B – JANUARY 2009 – REVISED NOVEMBER 2014

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Table of Contents

11.1

Application Information.......................................... 13

1

Features .................................................................. 1

11.2

Typical Applications .............................................. 13

2

Applications ........................................................... 1

12

Power Supply Recommendations ..................... 17

3

Description ............................................................. 1

12.1

Typical Power Sources ......................................... 17

4

Simplified Schematic............................................. 1

12.2

Input Voltage Effects On Output Current and

5

Revision History..................................................... 2

Efficiency.................................................................. 17

6

Device Comparison ............................................... 3

12.3

Behavior While Disabled ....................................... 17

7

Pin Configuration and Functions ......................... 3

12.4

Startup................................................................... 17

8

Specifications......................................................... 3

13

Layout................................................................... 18

8.1

Absolute Maximum Ratings ...................................... 3

13.1

Layout Guidelines ................................................. 18

8.2

Handling Ratings....................................................... 3

13.2

Layout Example .................................................... 18

8.3

Recommended Operating Conditions ....................... 4

13.3

Thermal Considerations ........................................ 18

8.4

Thermal Information .................................................. 4

14

Device and Documentation Support ................. 19

8.5

Electrical Characteristics........................................... 4

14.1

Device Support...................................................... 19

8.6

Typical Characteristics .............................................. 5

14.2

Documentation Support ........................................ 19

9

Parameter Measurement Information ................ 10

14.3

Related Links ........................................................ 19

10

Detailed Description ........................................... 11

14.4

Trademarks ........................................................... 19

10.1

Overview ............................................................... 11

14.5

Electrostatic Discharge Caution ............................ 19

10.2

Functional Block Diagrams ................................... 11

14.6

Glossary ................................................................ 19

10.3

Feature Description............................................... 11

15

Mechanical, Packaging, and Orderable

10.4

Device Functional Modes...................................... 12

Information ........................................................... 20

11

Applications and Implementation...................... 13

5 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision A (April 2014) to Revision B

Page

•

Changed format of Handling Ratings table. .......................................................................................................................... 3

•

Added new note to Application and Implementation section................................................................................................ 13

•

Renamed "Thermal Information" section to "Thermal Considerations" section. ................................................................. 18

Changes from Original (August 2009) to Revision A

Page

•

Updated data sheet format ..................................................................................................................................................... 1

•

Changed the data sheet title From: LOW INPUT VOLTAGE STEP-UP CONVERTER IN 6 PIN SC-70 PACKAGE

To: TPS6122x LOW INPUT VOLTAGE, 0.7V BOOST CONVERTER WITH 5.5

μA QUIESCENT CURRENT ..................... 1

•

Changed Feature bullet and Simplified Schematic text from "....1.8 V to 5.5 V" to "....1.8 V to 6 V"..................................... 1

•

Deleted "machine model" ESD rating because JEDEC discontinued its use in 2012. ......................................................... 3

•

•

Changed Adjustable output voltage version description text string from "....voltage is 5.5 V" to "....voltage is 6.0 V" ........ 16

•

Changed Layout diagram to correct typo in resistor numbers. ............................................................................................ 18

2

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