Texas Instruments TPS62065 - Manual

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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1 SLVU364 – March 2010 TPS62065/67EVM
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