LF155, LF156, LF256, LF257

LF355, LF356, LF357

SNOSBH0D – MAY 2000 – REVISED NOVEMBER 2015

www.ti.com

Table of Contents

7.2

Functional Block Diagram ....................................... 15

1

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

7.3

Feature Description................................................. 16

2

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

7.4

Device Functional Modes........................................ 16

3

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

8

Application and Implementation ........................ 17

4

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

8.1

Application Information............................................ 17

5

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

8.2

Typical Application .................................................. 18

6

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

8.3

System Examples ................................................... 20

6.1

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

9

Power Supply Recommendations ...................... 33

6.2

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

10

Layout................................................................... 33

6.3

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

10.1

Layout Guidelines ................................................. 33

6.4

Thermal Information .................................................. 5

10.2

Layout Example .................................................... 34

6.5

±15 V.......................................................................... 5

11

Device and Documentation Support ................. 35

6.6

11.1

Related Links ........................................................ 35

±15 V.......................................................................... 6

11.2

Community Resources.......................................... 35

6.7

DC Electrical Characteristics .................................... 6

11.3

Trademarks ........................................................... 35

6.8

Power Dissipation Ratings ........................................ 7

11.4

Electrostatic Discharge Caution ............................ 35

6.9

Typical Characteristics .............................................. 8

11.5

Glossary ................................................................ 35

7

Detailed Description ............................................ 14

12

Mechanical, Packaging, and Orderable

7.1

Overview ................................................................. 14

Information ........................................................... 35

4 Revision History

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

Changes from Revision C (March 2013) to Revision D

Page

•

Added Pin Configuration and Functions section, 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

•

Changes from Revision B (March 2013) to Revision C

Page

•

Changed layout of National Data Sheet to TI format ........................................................................................................... 31

2

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LF156 LF256 LF356