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User's Guide
TPS54226 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 Start-Up Procedure............................................................................................................................................................
2.3
Efficiency............................................................................................................................................................................4
2.4 Load Regulation.................................................................................................................................................................
2.5 Line Regulation..................................................................................................................................................................
2.6 Load Transient Response..................................................................................................................................................
2.7 Output Voltage Ripple........................................................................................................................................................
2.8 Input Voltage Ripple...........................................................................................................................................................
2.9
Start-Up..............................................................................................................................................................................7
Frequency........................................................................................................................................................8
Layout...........................................................................................................................................................................9
3.1 Layout................................................................................................................................................................................
4 Schematic, Bill of Materials, and Reference......................................................................................................................
4.1 Schematic........................................................................................................................................................................
Materials.................................................................................................................................................................14
4.3
Reference.........................................................................................................................................................................14
5 Revision History...................................................................................................................................................................
Figure 2-1. TPS54226EVM-539 Efficiency..................................................................................................................................
Figure 2-2. TPS54226EVM-539 Load Regulation.......................................................................................................................
Figure 2-3. TPS54226EVM-539 Line Regulation........................................................................................................................
Figure 2-4. TPS54226EVM-539 Load Transient Response........................................................................................................
Figure 2-5. TPS54226EVM-539 Output Voltage Ripple..............................................................................................................
Figure 2-6. TPS54226EVM-539 Input Voltage Ripple.................................................................................................................
Figure 2-7. TPS54226EVM-539 Start-Up....................................................................................................................................
Figure 2-8. TPS54226EVM-539 Switching Frequency................................................................................................................
Figure 3-1. Top Assembly............................................................................................................................................................
Layer.................................................................................................................................................................10
Figure 3-3. Internal Layer 1.......................................................................................................................................................
2........................................................................................................................................................11
Figure 3-5. Bottom Layer...........................................................................................................................................................
Figure 3-6. Bottom Assembly....................................................................................................................................................
Figure 4-1. TPS54226EVM-539 Schematic Diagram................................................................................................................
Table 1-2. TPS54226 EVM and Performance Specifications Summary......................................................................................
Table 1-3. Output Voltages..........................................................................................................................................................
Table 2-1. Connection and Test Points........................................................................................................................................
Materials..........................................................................................................................................................14
Trademarks
D-CAP2
™
is a trademark of Texas Instruments.
SLVU336A - NOVEMBER 2009 - REVISED OCTOBER 2021
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Table of Contents
Summary.................................................................................................................................2
List of Figures
List of Tables
Summary...............................................................................................................2
Copyright © 2021 Texas Instruments Incorporated
TPS54226 Step-Down Converter Evaluation Module User's Guide
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Related Manuals for Texas Instruments TPS54226EVM-539
Summary of Contents for Texas Instruments TPS54226EVM-539
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Page 1: Table Of Contents
List of Figures Figure 2-1. TPS54226EVM-539 Efficiency..........................Figure 2-2. TPS54226EVM-539 Load Regulation........................Figure 2-3. TPS54226EVM-539 Line Regulation........................Figure 2-4. TPS54226EVM-539 Load Transient Response......................Figure 2-5. TPS54226EVM-539 Output Voltage Ripple......................Figure 2-6. TPS54226EVM-539 Input Voltage Ripple......................... Figure 2-7. TPS54226EVM-539 Start-Up............................ Figure 2-8. TPS54226EVM-539 Switching Frequency........................ -
Page 2: Introduction
All trademarks are the property of their respective owners. 1 Introduction This user’s guide contains background information for the TPS54226 as well as support documentation for the TPS54226EVM-539 evaluation module. Also included are the performance specifications, schematic, and the bill of materials for the TPS54226EVM-539. 1.1 Background ™... -
Page 3: Test Setup And Results
47 – 68 22.1 33 – 47 2 Test Setup and Results This section describes how to properly connect, set up, and use the TPS54226EVM-539. The section also includes test results typical for the evaluation modules and the following: • Efficiency •... -
Page 4: Start-Up Procedure
3. Move the jumper at JP1 (Enable control) to cover EN and ON. The EVM will enable the output voltage. 2.3 Efficiency Figure 2-1 shows the efficiency for the TPS54226EVM-539 at an ambient temperature of 25°C. V = 1.05 V V = 5 V V = 12 V 0.001... -
Page 5: Load Regulation
Test Setup and Results 2.4 Load Regulation The load regulation for the TPS54226EVM-539 is shown Figure 2-2. V = 5 V V = 12 V -0.2 I - Output Current - A Figure 2-2. TPS54226EVM-539 Load Regulation 2.5 Line Regulation... -
Page 6: Load Transient Response
Test Setup and Results www.ti.com 2.6 Load Transient Response The TPS54226EVM-539 response to load transient is shown in Figure 2-4. The current step is from 500 mA to 1.5 A (25% to 75% of rated load). Total peak-to-peak output voltage variation is as shown. -
Page 7: Input Voltage Ripple
Test Setup and Results 2.8 Input Voltage Ripple The TPS54226EVM-539 input voltage ripple is shown in Figure 2-6. The output current is the rated full load of 2 VOUT = 20 mV/div (AC coupled) Switching Node = 5 V/div Time = 1 s/div Figure 2-6. -
Page 8: Switching Frequency
Test Setup and Results www.ti.com 2.10 Switching Frequency The TPS54226EVM-539 switching frequency is shown in Figure 2-8. I = 1 A V = 1.8 V V = 3.3 V V - Input Voltage - V Figure 2-8. TPS54226EVM-539 Switching Frequency TPS54226 Step-Down Converter Evaluation Module User's Guide SLVU336A –... -
Page 9: Board Layout
Board Layout 3 Board Layout This section provides description of the TPS54226EVM-539, board layout, and layer illustrations. 3.1 Layout The board layout for the TPS54226EVM-539 and is shown in Figure 3-1 through Figure 3-6. The top layer contains the main power traces for VIN, VO, and ground. Also on the top layer are connections for the pins of the TPS54226 and a large area filled with ground. -
Page 10: Figure 3-2. Top Layer
Board Layout www.ti.com Figure 3-2. Top Layer Figure 3-3. Internal Layer 1 TPS54226 Step-Down Converter Evaluation Module User's Guide SLVU336A – NOVEMBER 2009 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 11: Figure 3-4. Internal Layer 2
Board Layout Figure 3-4. Internal Layer 2 Figure 3-5. Bottom Layer SLVU336A – NOVEMBER 2009 – REVISED OCTOBER 2021 TPS54226 Step-Down Converter Evaluation Module User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 12: Figure 3-6. Bottom Assembly
Board Layout www.ti.com Figure 3-6. Bottom Assembly TPS54226 Step-Down Converter Evaluation Module User's Guide SLVU336A – NOVEMBER 2009 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 13: Schematic, Bill Of Materials, And Reference
Schematic, Bill of Materials, and Reference 4 Schematic, Bill of Materials, and Reference This section presents the TPS54226EVM-539 schematic, bill of materials, and reference. 4.1 Schematic Figure 4-1 is the schematic for the TPS54226EVM. Figure 4-1. TPS54226EVM-539 Schematic Diagram SLVU336A –... -
Page 14: Bill Of Materials
Updated the numbering format for tables, figures, and cross-references throughout the document....2 • Updated the user's guide title ..........................• Edited the user's guide for clarity........................2 TPS54226 Step-Down Converter Evaluation Module User's Guide SLVU336A – NOVEMBER 2009 – REVISED OCTOBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 15 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.
- Page 16 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 17 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 18 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 19 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 20 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...