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LM5017

SNVS783I – JANUARY 2012 – REVISED OCTOBER 2015

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Copyright © 2012–2015, 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

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

6.6

Timing Requirements ................................................ 5

6.7

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

7

Detailed Description .............................................. 8

7.1

Overview ................................................................... 8

7.2

Functional Block Diagram ......................................... 8

7.3

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

7.4

Device Functional Modes ....................................... 13

8

Application and Implementation ........................ 14

8.1

Application Information............................................ 14

8.2

Typical Application ................................................. 14

9

Power Supply Recommendations ...................... 24

10

Layout................................................................... 24

10.1

Layout Guidelines ................................................. 24

10.2

Layout Example .................................................... 24

11

Device and Documentation Support ................. 25

11.1

Custom Design with WEBENCH Tools................. 25

11.2

Receiving Notification of Documentation Updates 25

11.3

Documentation Support ........................................ 25

11.4

Community Resources.......................................... 25

11.5

Trademarks ........................................................... 25

11.6

Electrostatic Discharge Caution ............................ 25

11.7

Glossary ................................................................ 25

12

Mechanical, Packaging, and Orderable

Information ........................................................... 26

4 Revision History

Changes from Revision H (December 2014) to Revision I

Page

•

•

Changed 8 to 4 on equation in Input Capacitor section ...................................................................................................... 16

•

Changed 0.66 μF to 1.3 μF in Input Capacitor section......................................................................................................... 16

Changes from Revision G (December 2013) to Revision H

Page

•

Added package designators to pin out drawings. ................................................................................................................. 3

•

Changed Thermal Information table. ..................................................................................................................................... 4

•

Added D1 to Figure 12 ......................................................................................................................................................... 13

•

Updated the calculation for K from 10

•

Changes from Revision F (September 2013) to Revision G

Page

•

Changed formatting throughout document to the TI standard ............................................................................................... 1

•

Changed minimum operating input voltage from 9 V to 7.5 V in Features ........................................................................... 1

•

Changed minimum operating input voltage from 9 V to 7.5 V in Typical Application ........................................................... 1

•

Changed minimum operating input voltage from 9 V to 7.5 V in Pin Descriptions ............................................................... 3

•

Added Maximum Junction Temperature................................................................................................................................. 4

•

Changed minimum operating input voltage from 9 V to 7.5 V in Recommended Operating Conditions .............................. 4

Changes from Revision E (July 2013) to Revision F

Page

•

Added SW to RTN (100 ns transient) to Absolute Maximum Ratings ................................................................................... 4