LP3990-Q1

SNVSA66A – OCTOBER 2014 – REVISED DECEMBER 2015

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Table of Contents

7.4

Device Functional Modes........................................ 10

1

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

8

Application and Implementation ........................ 11

2

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

8.1

Application Information............................................ 11

3

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

8.2

Typical Application ................................................. 11

4

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

9

Power Supply Recommendations ...................... 14

5

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

10

Layout................................................................... 14

6

Specifications......................................................... 4

10.1

Layout Guidelines ................................................. 14

6.1

Absolute Maximum Ratings ...................................... 4

10.2

Layout Example .................................................... 15

6.2

ESD Ratings.............................................................. 4

10.3

DSBGA Mounting.................................................. 15

6.3

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

10.4

DSBGA Light Sensitivity ....................................... 15

6.4

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

11

Device and Documentation Support ................. 16

6.5

Electrical Characteristics........................................... 5

11.1

Documentation Support ........................................ 16

6.6

Output Capacitor, Recommended Specifications ..... 5

11.2

Community Resources.......................................... 16

6.7

Timing Requirements ................................................ 6

11.3

Trademarks ........................................................... 16

6.8

Typical Characteristics .............................................. 6

11.4

Electrostatic Discharge Caution ............................ 16

7

Detailed Description .............................................. 9

11.5

Glossary ................................................................ 16

7.1

Overview ................................................................... 9

12

Mechanical, Packaging, and Orderable

7.2

Functional Block Diagram ......................................... 9

Information ........................................................... 16

7.3

Feature Description................................................... 9

4 Revision History

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

Changes from Original (October 2014) to Revision A

Page

•

Changed "For output voltages other than 0.8 V, 1.2 V, 1.35 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, or 3.3 V, please contact

the Texas Instruments sales office." to "For output voltage options please refer to package option addendum (POA)

or contact the Texas Instruments Sales Office." .................................................................................................................... 1

•

Changed Handling Ratings to ESD Ratings table ................................................................................................................. 4

•

Added introductory sentence for Design Requirements ...................................................................................................... 11

2

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