LP3990

SNVS251J – MAY 2004 – REVISED SEPTEMBER 2014

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Table of Contents

7.3

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

1

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

7.4

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

2

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

8

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

3

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

8.1

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

4

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

8.2

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

5

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

9

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

6

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

10

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

6.1

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

10.1

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

6.2

Handling Ratings ...................................................... 4

10.2

Layout Examples................................................... 15

6.3

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

10.3

DSBGA Mounting.................................................. 16

6.4

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

10.4

DSBGA Light Sensitivity ....................................... 16

6.5

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

11

Device and Documentation Support ................. 17

6.6

Output Capacitor, Recommended Specifications ..... 6

11.1

Trademarks ........................................................... 17

6.7

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

11.2

Electrostatic Discharge Caution ............................ 17

6.8

Typical Performance Characteristics ........................ 7

11.3

Glossary ................................................................ 17

7

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

12

Mechanical, Packaging, and Orderable

7.1

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

Information ........................................................... 17

7.2

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

4 Revision History

Changes from Revision I (May 2013) to Revision J

Page

•

Added Device Information and Handling Rating tables, Feature Description, Device Functional Modes, Application

and Implementation, Power Supply Recommendations, Layout, Device and Documentation Support, and

Mechanical, Packaging, and Orderable Information sections; moved some curves to Application Curves section .............. 1

2

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