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LM340, LM340A, LM7805, LM7812, LM7815

SNOSBT0K – FEBRUARY 2000 – REVISED JULY 2016

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Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815

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Copyright © 2000–2016, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

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

6

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

6.1

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

6.2

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

6.3

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

6.4

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

6.5

LM340A Electrical Characteristics,

6.6

LM340 / LM7805 Electrical Characteristics,

6.7

LM340 / LM7812 Electrical Characteristics,

6.8

LM340 / LM7815 Electrical Characteristics,

6.9

Typical Characteristics .............................................. 9

7

Detailed Description ............................................ 12

7.1

Overview ................................................................. 12

7.2

Functional Block Diagram ....................................... 12

7.3

Feature Description................................................. 12

7.4

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

8

Application and Implementation ........................ 13

8.1

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

8.2

Typical Applications ................................................ 14

8.3

System Examples ................................................... 15

9

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

10

Layout................................................................... 17

10.1

Layout Guidelines ................................................. 17

10.2

Layout Example ................................................... 17

10.3

Heat Sinking DDPAK/TO-263 and SOT-223

Package Parts.......................................................... 18

11

Device and Documentation Support ................. 20

11.1

Documentation Support ........................................ 20

11.2

Related Links ........................................................ 20

11.3

Receiving Notification of Documentation Updates 20

11.4

Community Resources.......................................... 20

11.5

Trademarks ........................................................... 20

11.6

Electrostatic Discharge Caution ............................ 20

11.7

Glossary ................................................................ 20

12

Mechanical, Packaging, and Orderable

Information ........................................................... 21

4 Revision History

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

Changes from Revision J (December 2013) to Revision K

Page

•

Added ESD Ratings table, Thermal Information table, Feature Description section, Device Functional Modes,

Application and Implementation section, Power Supply Recommendations section, Layout section, Device and

Documentation Support section, and Mechanical, Packaging, and Orderable Information section....................................... 1

•

Deleted obsolete LM140 and LM7808C devices from the data sheet ................................................................................... 1

•

Changed Figure 13 caption from Line Regulation 140AK-5.0 to Line Regulation LM340, .................................................. 11

•

Changed Figure 14 caption from Line Regulation 140AK-5.0 to Line Regulation LM340, .................................................. 11

Changes from Revision I (March 2013) to Revision J

Page

•

Changed 0.5 from typ to max ................................................................................................................................................. 5