Texas Instruments TPS62065 - Manual

Texas Instruments TPS62065

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Table of Contents:

  • Page 2 – Introduction; Features; Electrical Performance Specifications; Table 1
  • Page 3 – These diagrams are provided for reference only. See
  • Page 4 – Connector and Test Point Descriptions; A feed-forward capacitor is required. Refer to the; converter is capable of carrying a load current up to 2000 mA.
  • Page 5 – converter is capable of a load up to 2,000 mA load current.; This function is only available on the TPS62067EVM.
  • Page 6 – Test Configuration; Hardware Setup; Figure 3; Figure 3. Hardware Board Connection
  • Page 7 – Testing Procedure; Follow these procedures when configuring the EVM for testing.; CAUTION; This feature is only available on the TPS62067EVM.
  • Page 8 – EFFICIENCY vs LOAD CURRENT; Efficiency; Figure 4; Load
  • Page 9 – Figure 6
  • Page 11 – Control Loop Bode Diagrams: TPS62065; and; Figure 10. TPS62065 Gain and Phase vs Frequency; Figure 11. TPS62065 Gain and Phase vs Frequency
  • Page 12 – through
  • Page 18 – Bill of Materials; Table 2
  • Page 20 – IMPORTANT NOTICE; Products
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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

All trademarks are the property of their respective owners.

1

SLVU364 – March 2010

TPS62065/67EVM

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Copyright © 2010, Texas Instruments Incorporated

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Summary

Page 2 - Introduction; Features; Electrical Performance Specifications; Table 1

Introduction www.ti.com 1 Introduction The TPS62065-67EVM-347 is a fully assembled and tested pair of PCBs for evaluating the TPS62065and TPS62067 2-A step-down converters. The EVM comes configured with both a TPS62065 IC and aTPS62067 IC; there are two PCBs, one for each respective step-down conver...

Page 3 - These diagrams are provided for reference only. See

www.ti.com TPS62056/67EVM Schematic 3 TPS62056/67EVM Schematic Figure 1 shows the TPS62065EVM schematic. Figure 2 illustrates the TPS62067EVM schematic. Figure 1. TPS62065EVM Schematic Figure 2. TPS62067EVM Schematic NOTE: These diagrams are provided for reference only. See Table 2 , the Bill of Mat...

Page 4 - Connector and Test Point Descriptions; A feed-forward capacitor is required. Refer to the; converter is capable of carrying a load current up to 2000 mA.

Connector and Test Point Descriptions www.ti.com 4 Connector and Test Point Descriptions 4.1 Enable Jumpers/Switches: TPS62065EVM 4.1.1 J10 VIN This header is the positive connection to the input power supply. The power supply must be connectedbetween J10 and J12 (GND). The leads to the input supply...

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