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User's Guide
TPS53128 Buck Controller Evaluation Module User's
Guide
The TPS53128EVM-620 evaluation module presents an easy-to-use reference design for a common dual-output
power supply using the TPS53128 controller in cost-sensitive applications.
1
Introduction.............................................................................................................................................................................3
1.1 Description.........................................................................................................................................................................
1.2
Application..........................................................................................................................................................................3
1.3 Features.............................................................................................................................................................................
2 Electrical Performance Specifications.................................................................................................................................
3
Schematics..............................................................................................................................................................................5
4.2 Switching Frequency Select Switch (SW3)........................................................................................................................
Descriptions.......................................................................................................................................................6
Setup................................................................................................................................................................................8
5.1 Equipment..........................................................................................................................................................................
5.2 Recommended Setup........................................................................................................................................................
6 Test Procedure......................................................................................................................................................................
6.1 Start-Up Procedure..........................................................................................................................................................
6.2 Line/Load Regulation and Efficiency Measurement Procedure.......................................................................................
Procedure........................................................................................................................................................10
7.1 Efficiency..........................................................................................................................................................................
Regulation.................................................................................................................................................11
7.3 Output Voltage Ripple......................................................................................................................................................
7.4 Switch Node Waveforms..................................................................................................................................................
9 Bill of Materials.....................................................................................................................................................................
10 Revision History.................................................................................................................................................................
Figure 5-1. TPS53128EVM-620 Recommended Test Setup.......................................................................................................
Load....................................................................................................................................................11
Load....................................................................................................................................................11
Figure 7-3. Output Voltage vs Load...........................................................................................................................................
Figure 7-4. Output Voltage vs Load...........................................................................................................................................
Figure 7-5. Output Voltage Ripple.............................................................................................................................................
Figure 7-6. Output Voltage Ripple.............................................................................................................................................
Waveform................................................................................................................................................12
Waveform................................................................................................................................................12
Figure 8-1. Top Assembly..........................................................................................................................................................
Figure 8-2. Bottom Assembly....................................................................................................................................................
Layer.................................................................................................................................................................14
Figure 8-4. Bottom Layer...........................................................................................................................................................
SLVU433A - FEBRUARY 2011 - REVISED JANUARY 2022
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ABSTRACT
Table of Contents
Descriptions................................................................................................................................6
SW2)......................................................................................................................................6
Procedure..............................................................................................................10
Curves.......................................................................................................11
Layout.................................................................................................................................13
List of Figures
Schematic.................................................................................................................................5
Copyright © 2022 Texas Instruments Incorporated
Ripple............................................................................................7
TPS53128 Buck Controller Evaluation Module User's Guide
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Related Manuals for Texas Instruments TPS53128
Summary of Contents for Texas Instruments TPS53128
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Page 1: Table Of Contents
User’s Guide TPS53128 Buck Controller Evaluation Module User's Guide ABSTRACT The TPS53128EVM-620 evaluation module presents an easy-to-use reference design for a common dual-output power supply using the TPS53128 controller in cost-sensitive applications. Table of Contents Introduction.....................................3 1.1 Description..................................Application..................................3 1.3 Features..................................... - Page 2 D-CAP2 is a trademark of Texas Instruments. All trademarks are the property of their respective owners. TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
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Page 3: Introduction
Introduction 1 Introduction 1.1 Description The TPS53128EVM-620 evaluation board provides the user with a convenient way to evaluate the TPS53128 dual D-CAP2 ™ mode control step-down controller in a realistic cost-sensitive application. Providing both a low core-type 1.05-V and I/O type 1.8-V output at up to 4 A from a loosely regulated 12-V (8-V to 22-V) source, the TPS53128EVM-620 includes switches and test points to assist a user in evaluating the performance of the TPS53128 controller in their application. -
Page 4: Electrical Performance Specifications
Full load efficiency of output 2 = 12 V, I = 4 A — — OUT2 TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 5: Schematics
Schematics 3 Schematics For reference only. See Table 9-1 for specific values. Figure 3-1. TPS53128EVM-620 Schematic SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53128 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 6: Connector And Test Point Descriptions
For output ripple measurements, TP8 and TP4 allow a user to limit the ground loop area by using the tip and barrel measurement technique shown in Figure 4-1. TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 7: Figure 4-1. Tip And Barrel Measurement For Output Voltage
5-V regulator. To use TP10, connect a voltmeter positive terminal to TP10 and negative terminal to TP3. SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53128 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 8: Test Setup
EVM. Electrostatic smock and safety glasses also are recommended. TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright ©... -
Page 9: Figure 5-1. Tps53128Evm-620 Recommended Test Setup
Test Setup LOAD1 1.05V @ LOAD2 1.8V @ Figure 5-1. TPS53128EVM-620 Recommended Test Setup SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53128 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 10: Test Procedure
4. Decrease LOAD2 to 0 A and shut down LOAD2. 5. Decrease V to 0 V and shut down V 6. Shut down the fan. TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 11: Performance Data And Typical Characteristic Curves
- Load Current - A LOAD LOAD Figure 7-4. Output Voltage vs Load Figure 7-3. Output Voltage vs Load SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53128 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 12: Output Voltage Ripple
Test Condition: Vin 12 V, VO2 1.8 V, 4 A TPS53128EVM-620 TPS53128EVM-620 Switch Node Switch Node Figure 7-8. Switching Waveform Figure 7-7. Switching Waveform TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 13: Evm Assembly Drawings And Layout
4-layer, 2-oz copper-clad circuit board of 3.5 inch by 2.7 inch to allow the user to easily view, probe, and evaluate the TPS53128 control IC in a practical application. Moving components to both sides of the PCB or using additional internal layers can offer additional size reduction for space constrained systems. -
Page 14: Figure 8-2. Bottom Assembly
EVM Assembly Drawings and Layout www.ti.com Figure 8-2. Bottom Assembly Figure 8-3. Top Layer TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 15: Figure 8-4. Bottom Layer
EVM Assembly Drawings and Layout Figure 8-4. Bottom Layer Figure 8-5. Internal Layer 1 SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53128 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... - Page 16 EVM Assembly Drawings and Layout www.ti.com Figure 8-6. Internal Layer 2 TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
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Page 17: Bill Of Materials
PCB, 2.70 inch × 3.50 inch × 0.063 inch FR-4 2.7 inch × 3.5 HPA620 inch SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53128 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 18: Revision History
Updated the numbering format for tables, figures, and cross-references throughout the document....3 • Updated the user's guide title..........................TPS53128 Buck Controller Evaluation Module User's Guide SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... - Page 19 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 20 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 21 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 22 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 23 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 24 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 © 2022, Texas Instruments Incorporated...