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LM43602-Q1

SNVSA83C – APRIL 2015 – REVISED OCTOBER 2017

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Product Folder Links: LM43602-Q1

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Copyright © 2015–2017, 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 .................................................. 5

6.5

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

6.6

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

6.7

Switching Characteristics .......................................... 7

6.8

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

7

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

7.1

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

7.2

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

7.3

Feature Description................................................. 13

7.4

Device Functional Modes........................................ 20

8

Applications and Implementation ...................... 22

8.1

Application Information............................................ 22

8.2

Typical Applications ................................................ 22

9

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

10

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

10.1

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

10.2

Layout Example .................................................... 36

11

Device and Documentation Support ................. 37

11.1

Device Support...................................................... 37

11.2

Development Support ........................................... 37

11.3

Receiving Notification of Documentation Updates 37

11.4

Community Resources.......................................... 37

11.5

Trademarks ........................................................... 38

11.6

Electrostatic Discharge Caution ............................ 38

11.7

Glossary ................................................................ 38

12

Mechanical, Packaging, and Orderable

Information ........................................................... 38

4 Revision History

Changes from Revision B (April 2017) to Revision C

Page

•

Added top navigator icon for TI reference design .................................................................................................................. 1

•

Changed MAX value for VBIAS rising threshold from "3.16" to "3.18" V ............................................................................... 5

Changes from Revision A (May 2015) to Revision B

Page

•

Added links for WEBENCH ................................................................................................................................................... 1

•

Added LM43602A-Q1 version ................................................................................................................................................ 1

•

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

•

Updating RPGOOD value for EN = 3.3V and EN = 0V ......................................................................................................... 6

•

Updating EN Falling Threshold Curve ................................................................................................................................. 10

•

Updating EN Rising Threshold Curve ................................................................................................................................. 10

•

Updating EN Hysteresis Curve ............................................................................................................................................ 10

•

Added Equation 25 .............................................................................................................................................................. 28

•

Added Equation 26 .............................................................................................................................................................. 28

Changes from Original (April 2015) to Revision A

Page

•

Changed device from Product Preview to Production Data ................................................................................................... 1

•

Deleted "Super-AM Band" ..................................................................................................................................................... 1

•

Added "BIAS pin voltage should not exceed VIN" to BIAS pin description ........................................................................... 3

•

Added TYPE column to Pin Functions table ......................................................................................................................... 3

•

Added "of 10000 hours" to FN 2 of table ............................................................................................................................... 4

•

Changed info in Vfb rows; in ILKG-FB changed value of from FB=1.011 V to 1.015 V ....................................................... 6

•

Changed The internal REF voltage is "1.011 V" to "1.015 V" .............................................................................................. 14

•

Changed VFB = "1.011 V" to "1.015 V" ................................................................................................................................ 24