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TPS544B20RVFR Datasheet(PDF) 2 Page - Texas Instruments

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Part # TPS544B20RVFR
Description  Synchronous Buck Converters
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS544B20RVFR Datasheet(HTML) 2 Page - Texas Instruments

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TPS544B20, TPS544C20
SLUSB69A – MAY 2014 – REVISED FEBRUARY 2016
www.ti.com
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Copyright © 2014–2016, Texas Instruments Incorporated
Table of Contents
1
Features .................................................................. 1
2
Applications ........................................................... 1
3
Description ............................................................. 1
4
Revision History..................................................... 2
5
Device Comparison Table..................................... 3
6
Pin Configuration and Functions ......................... 3
7
Specifications......................................................... 5
7.1
Absolute Maximum Ratings ...................................... 5
7.2
ESD Ratings.............................................................. 5
7.3
Recommended Operating Conditions ....................... 5
7.4
Thermal Information .................................................. 6
7.5
Electrical Characteristics........................................... 7
7.6
Switching Characteristics ........................................ 10
7.7
Typical Characteristics ............................................ 11
8
Detailed Description ............................................ 15
8.1
Overview ................................................................. 15
8.2
Functional Block Diagram ....................................... 15
8.3
Feature Description................................................. 16
8.4
Device Functional Modes........................................ 26
8.5
Programming........................................................... 27
8.6
Register Maps ......................................................... 29
9
Applications and Implementation ...................... 51
9.1
Application Information............................................ 51
9.2
Typical Application .................................................. 51
10
Power Supply Recommendations ..................... 60
11
Layout................................................................... 61
11.1
Layout Guidelines ................................................. 61
11.2
Layout Example .................................................... 62
12
Device and Documentation Support ................. 64
12.1
Device Support...................................................... 64
12.2
Related Links ........................................................ 65
12.3
Trademarks ........................................................... 65
12.4
Community Resources.......................................... 66
12.5
Electrostatic Discharge Caution ............................ 66
12.6
Glossary ................................................................ 66
13
Mechanical, Packaging, and Orderable
Information ........................................................... 66
4 Revision History
Changes from Original (May 2014) to Revision A
Page
Deleted package suffix and reel quantities from Device Comparison Table ......................................................................... 3
Changed "Handling" Ratings table to "ESD" Ratings and moved Tstg spec to the Absolute Maximum Ratings table........... 5
Added sentence in Switching Frequency description........................................................................................................... 19
Changed "Hiccup" to "Shutdown and latch-off" as the Default Behavior for CMD Command; and, changed Default
Register Value from 3Fh to 07h in Table 4, CMD Code 47h .............................................................................................. 28
Changed Default Value for Bit Position 5, 4, and 3 from 1 1 1 to 0 0 0 respectively in the
IOUT_OC_FAULT_RESPONSE (47h) table. ...................................................................................................................... 36
Changed "IVADDR" to "IVFREQ" for Function at Bit Position 4 of the STATUS_MFR_SPECIFIC (80h); and also in
the accompanying description. ............................................................................................................................................ 43
Added Community Resources section ................................................................................................................................ 65


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