Table of Contents
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User's Guide
TPS54233 Step-Down Converter Evaluation Module User's
Guide
1
Introduction.............................................................................................................................................................................2
1.1 Background........................................................................................................................................................................
1.3 Modifications......................................................................................................................................................................
2 Test Setup and Results..........................................................................................................................................................
2.1 Input / Output Connections................................................................................................................................................
2.2
Efficiency............................................................................................................................................................................4
2.3 Output Voltage Load Regulation........................................................................................................................................
2.4 Output Voltage Line Regulation.........................................................................................................................................
Transients..................................................................................................................................................................6
2.6 Loop Characteristics..........................................................................................................................................................
2.7 Output Voltage Ripple........................................................................................................................................................
2.8 Input Voltage Ripple...........................................................................................................................................................
Up.......................................................................................................................................................................8
Layout.........................................................................................................................................................................10
3.1 Layout..............................................................................................................................................................................
Area......................................................................................................................................................11
Materials...........................................................................................................................................12
4.1 Schematic........................................................................................................................................................................
Materials.................................................................................................................................................................13
5 Revision History...................................................................................................................................................................
Figure 2-1. TPS54233EVM-373 Efficiency..................................................................................................................................
Figure 2-3. TPS54233EVM-373 Load Regulation.......................................................................................................................
Figure 2-4. TPS54233EVM-373 Line Regulation........................................................................................................................
Figure 2-5. TPS54233EVM-373 Transient Response.................................................................................................................
Figure 2-6. TPS54233EVM-373 Loop Response........................................................................................................................
Figure 2-7. TPS54233EVM-373 Output Ripple...........................................................................................................................
Figure 2-8. TPS54233EVM-373 Input Ripple..............................................................................................................................
Figure 2-10. TPS54233EVM-373 Start-up Relative to Enable....................................................................................................
Figure 3-1. TPS54233EVM-373 Top-Side Layout.....................................................................................................................
Figure 3-2. TPS54233EVM-373 Bottom-Side Layout................................................................................................................
Figure 3-3. TPS54233EVM-373 Top-Side Assembly.................................................................................................................
Table 2-1. EVM Connectors and Test Points...............................................................................................................................
Trademarks
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All trademarks are the property of their respective owners.
SLVU264A - NOVEMBER 2008 - REVISED OCTOBER 2021
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Table of Contents
Summary.................................................................................................................................2
List of Figures
Efficiency..............................................................................................................5
IN
Operation...............................................................................................................9
Schematic...............................................................................................................................12
List of Tables
Summary...............................................................................................................2
Available...........................................................................................................................................3
Materials.........................................................................................................................13
Copyright © 2021 Texas Instruments Incorporated
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Summary..................................................................................2
TPS54233 Step-Down Converter Evaluation Module User's Guide
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Table of Contents
Related Manuals for Texas Instruments TPS54233
Summary of Contents for Texas Instruments TPS54233
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Page 1: Table Of Contents
™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 TPS54233 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 2: Introduction
1.1 Background The TPS54233 dc/dc converter is designed to provide up to a 2 A output from an input voltage source of 3.5 V to 28 V. Rated input voltage and output current range for the evaluation module are given in Table 1-1. -
Page 3: Modifications
Introduction 1.3 Modifications These evaluation modules are designed to provide access to the features of the TPS54233. Some modifications can be made to this module. 1.3.1 Output Voltage Set Point To change the output voltage of the EVM, it is necessary to change the value of resistor R . -
Page 4: Efficiency
TPS54233EVM-373 at lower output currents between 0.01 A and 0.20 A at an ambient temperature of 25°C. TPS54233 Step-Down Converter Evaluation Module User's Guide SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 Submit Document Feedback... -
Page 5: Output Voltage Load Regulation
I - Output Current - A Figure 2-3. TPS54233EVM-373 Load Regulation Measurements are given for an ambient temperature of 25°C. SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 TPS54233 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 6: Output Voltage Line Regulation
75% of maximum rated load. Total peak-to-peak voltage variation is as shown, including ripple and noise on the output. V OUT I OUT Figure 2-5. TPS54233EVM-373 Transient Response TPS54233 Step-Down Converter Evaluation Module User's Guide SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 7: Loop Characteristics
2 A. Voltage is measured directly across the output capacitors. V OUT Figure 2-7. TPS54233EVM-373 Output Ripple SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 TPS54233 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 8: Input Voltage Ripple
15 V and there is no load. V IN V OUT Figure 2-9. TPS54233EVM-373 Start-Up Relative to V TPS54233 Step-Down Converter Evaluation Module User's Guide SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 9: Figure 2-10. Tps54233Evm-373 Start-Up Relative To Enable
V OUT Figure 2-10. TPS54233EVM-373 Start-up Relative to Enable V OUT Figure 2-11. TPS54233EVM-373 Eco-Mode Operation SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 TPS54233 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 10: Board Layout
, and VPHASE. Also on the top layer are connections for the remaining pins of the TPS54233 and a large area filled with ground. The bottom layer contains ground and a signal route for the BOOT capacitor. The top and bottom and internal ground traces are connected with multiple vias placed around the board including ten vias directly under the TPS54233 device to provide a thermal path from the top-side ground plane to the bottom-side ground plane. -
Page 11: Estimated Circuit Area
The estimated printed circuit board area for the components used in the design of this circuit is 0.72 in . This area does not include test points or connectors. SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 TPS54233 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 12: Schematic And Bill Of Materials
This section presents the TPS54233EVM-373 schematic and bill of materials. 4.1 Schematic Figure 4-1 is the schematic for the TPS54233EVM-373. Figure 4-1. TPS54233EVM-373 Schematic TPS54233 Step-Down Converter Evaluation Module User's Guide SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 13: Bill Of Materials
Updated the numbering format for tables, figures, and cross-references throughout the document....2 • Updated the user's guide title..........................SLVU264A – NOVEMBER 2008 – REVISED OCTOBER 2021 TPS54233 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 14 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
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Page 15: Operation
www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product. - Page 16 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 17 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 18 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
- Page 19 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...