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TPS54560

SLVSBN0B – MARCH 2013 – REVISED AUGUST 2016

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Copyright © 2013–2016, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

Simplified Schematic............................................. 1

5

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

6

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

7

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

7.1

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

7.2

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

7.3

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

7.4

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

7.5

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

7.6

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

7.7

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

8

Detailed Description ............................................ 10

8.1

Overview ................................................................. 10

8.2

Functional Block Diagram ....................................... 11

8.3

Feature Description ................................................ 11

8.4

Device Functional Modes........................................ 22

9

Application and Implementation ........................ 23

9.1

Application Information............................................ 23

9.2

Typical Application .................................................. 23

9.3

Inverting Power ....................................................... 34

9.4

Split Rail Power Supply........................................... 34

10

Power Supply Recommendation ....................... 35

11

Layout................................................................... 36

11.1

Safe Operating Area ............................................. 36

11.2

Layout Guidelines ................................................. 37

11.3

Layout Examples................................................... 37

12

Device and Documentation Support ................. 38

12.1

Receiving Notification of Documentation Updates 38

12.2

Community Resources.......................................... 38

12.3

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

12.4

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

12.5

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

13

Mechanical, Packaging, and Orderable

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

5 Revision History

Changes from Revision A (March 2014) to Revision B

Page

•

Changed Package type ident from HSOIC to HSOP ............................................................................................................. 3

•

•

Added ± sign to ESD voltages ............................................................................................................................................... 4

•

Changed µMhos to µS (Siemens) for the Error Amp specification to align with JEDEC ...................................................... 5

•

•

Changed Equation 6 and Equation 7 ................................................................................................................................... 14

•

Added NOTE to Application and Implementation section ................................................................................................... 23

•

Changed Equation 26 .......................................................................................................................................................... 24

Changes from Original (March 2013) to Revision A

Page

•

Changed the data sheet to the new TI layout and added the Device Information table ........................................................ 1

•

Added the Handling Ratings table .......................................................................................................................................... 4

•

Added the Recommended Operating Conditions table .......................................................................................................... 4

•

Changed the Operating: nonswitching supply current TEST CONDITIONS From: FB = 0.83 V To: FB = 0.9 V .................. 5

•

Changed RT/CLK high threshold MAX value From: 1.7 V To: 2 V ....................................................................................... 5

•

Changed Figure 6 title From: HIGH FREQUENCY RANGE To: LOW FREQUENCY RANGE ............................................. 6

•

Changed Figure 7 title From: LOW FREQUENCY RANGE To: HIGH FREQUENCY RANGE ............................................. 6

•

Added the Power Supply Recommendation section ............................................................................................................ 35

•

Changed text in the Safe Operating Area ............................................................................................................................ 36