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User's Guide

SLVU364–March 2010

TPS62065/67EVM

This user’s guide describes the characteristics, operation, and use of the TPS62065-67EVM-347

evaluation module (EVM). The TPS62065-67EVM-347 is a fully assembled and tested platform for

evaluating the performance of both the TPS62065 and TPS62067 2-A step-down converters. This

document includes schematic diagrams, printed circuit board (PCB) layout, bill of materials, and test data.

Throughout this document, the abbreviations EVM, TPS62065/67EVM, and the term evaluation module

are synonymous with the TPS62065-67EVM-347 unless otherwise noted.

Contents

1 Introduction .................................................................................................................. 2

2 Electrical Performance Specifications .................................................................................... 2

3 TPS62056/67EVM Schematic ............................................................................................. 3

4 Connector and Test Point Descriptions .................................................................................. 4

5 Test Configuration .......................................................................................................... 6

6 TPS62065/67EVM Test Data .............................................................................................. 8

7 TPS62065/67EVM-347 Assembly Drawings and Layout ............................................................ 12

8 Bill of Materials ............................................................................................................. 18

List of Figures

1 TPS62065EVM Schematic ................................................................................................ 3

2 TPS62067EVM Schematic ................................................................................................ 3

3 Hardware Board Connection .............................................................................................. 6

4 TPS62065, TPS62067 Efficiency vs Load Current ..................................................................... 8

5 TPS62065 Startup into 2.2-Ω Load....................................................................................... 8

6 TPS62067 Startup into 2.2-Ω Load....................................................................................... 9

7 TPS62067 Shutdown: No Load ........................................................................................... 9

8 TPS62065 Output Voltage Ripple (PFM Mode) ....................................................................... 10

9 TPS62065 Output Voltage Ripple (PWM Mode) ...................................................................... 10

10 TPS62065 Gain and Phase vs Frequency ............................................................................. 11

11 TPS62065 Gain and Phase vs Frequency ............................................................................. 11

12 TPS62065/67EVM Component Placement (Top View) .............................................................. 13

13 TPS62065/67EVM Top-Side Copper (Top View) ..................................................................... 14

14 TPS62065/67EVM Internal Layer 2 (X-Ray View, from Top)........................................................ 15

15 TPS62065/67EVM Internal Layer 1 (X-Ray View, from Top)........................................................ 16

16 TPS62065/67EVM Bottom-Side Copper (Bottom View) ............................................................. 17

List of Tables

1 TPS62065/67EVM Performance Characteristics ....................................................................... 2

2 TPS62065/67EVM Bill of Materials ..................................................................................... 18

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SLVU364–March 2010 TPS62065/67EVM

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Inhaltsverzeichnis

Seite 1 - TPS62065/67EVM

User's GuideSLVU364–March 2010TPS62065/67EVMThis user’s guide describes the characteristics, operation, and use of the TPS62065-67EVM-347evaluati

Seite 2 - 1.2 TPS62065/67 Applications

Time(4 s/div)mV :50mV/divOUTSW:2V/divI :200mA/divCOILV =3.6VV =1.8VINOUTL=1.2 HC =10 FmmOUTI =20mAMODE=GNDOUTTYPICALOUTPUTVOLTAGERIP

Seite 3 - 3 TPS62056/67EVM Schematic

www.ti.comTPS62065/67EVM Test Data6.5 Control Loop Bode Diagrams: TPS62065Figure 10 and Figure 11 illustrate typical TPS62065 gain and phase performan

Seite 4

TPS62065/67EVM-347 Assembly Drawings and Layoutwww.ti.com7 TPS62065/67EVM-347 Assembly Drawings and LayoutFigure 12 through Figure 16 show the design

Seite 5

38.10mm(1.50inch)38.10mm(1.50inch)45.72mm(1.80inch)www.ti.comTPS62065/67EVM-347 Assembly Drawings and LayoutFigure 12. TPS62065/67EVM Component

Seite 6 - 5.1 Hardware Setup

TPS62065/67EVM-347 Assembly Drawings and Layoutwww.ti.comFigure 13. TPS62065/67EVM Top-Side Copper (Top View)14TPS62065/67EVM SLVU364–March 2010Submit

Seite 7 - 5.2 Testing Procedure

www.ti.comTPS62065/67EVM-347 Assembly Drawings and LayoutFigure 14. TPS62065/67EVM Internal Layer 2 (X-Ray View, from Top)15SLVU364–March 2010 TPS6206

Seite 8 - 6.2 Start-up: TPS62065

TPS62065/67EVM-347 Assembly Drawings and Layoutwww.ti.comFigure 15. TPS62065/67EVM Internal Layer 1 (X-Ray View, from Top)16TPS62065/67EVM SLVU364–Mar

Seite 9 - TPS62067Shutdown

www.ti.comTPS62065/67EVM-347 Assembly Drawings and LayoutFigure 16. TPS62065/67EVM Bottom-Side Copper (Bottom View)17SLVU364–March 2010 TPS62065/67EVM

Seite 10 - TPS62065/67EVM Test Data

Bill of Materialswww.ti.com8 Bill of MaterialsTable 2 lists the bill of materials for the TPS62065/67EVM.Table 2. TPS62065/67EVM Bill of Materials(1)(

Seite 11

Evaluation Board/Kit Important NoticeTexas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation board/kit

Seite 12 - Submit Documentation Feedback

Introductionwww.ti.com1 IntroductionThe TPS62065-67EVM-347 is a fully assembled and tested pair of PCBs for evaluating the TPS62065and TPS62067 2-A st

Seite 13

IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improveme

Seite 14

www.ti.comTPS62056/67EVM Schematic3 TPS62056/67EVM SchematicFigure 1 shows the TPS62065EVM schematic. Figure 2 illustrates the TPS62067EVM schematic.F

Seite 15

Connector and Test Point Descriptionswww.ti.com4 Connector and Test Point Descriptions4.1 Enable Jumpers/Switches: TPS62065EVM4.1.1 J10 VINThis header

Seite 16

www.ti.comConnector and Test Point Descriptions4.1.9 J16 VOUT (SMA)This SMA connector is connected to the output voltage of the TPS62065. It can be us

Seite 17

J12J13J11J14J10J15JP10ONENOFFVINGNDVOUTGNDS++S+S--S-TPS62065/67EVM-347DCPowerSupplyLoadOscilloscopeTest Configurationwww.ti.com4.2.8 JP20 ENThis jump

Seite 18 - 8 Bill of Materials

www.ti.comTest Configuration5.2 Testing ProcedureFollow these procedures when configuring the EVM for testing.CAUTIONMany of the components on the TPS

Seite 19 - EVM Warnings and Restrictions

100959085807570656055500 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0I (A)OUTEfficiency(%)V =3.0VINV =3.3VV =3.6VV =4.2VV =5.0VININININL=1.0 H

Seite 20 - IMPORTANT NOTICE

2V/div2V/div2V/div1A/divTime(100 s/div)mV =4.2VV =3.3VINOUTLoad=2R2PGPull-upResistor=10kWTPS62067StartupTime(1ms/div)5V/div2V/div

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