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User's Guide
TPS53126 Buck Controller Evaluation Module User's
Guide
The TPS53126EVM-600 Evaluation Module presents an easy-to-use reference design for a common, dual-
output power supply using the TPS53126 controller in cost-sensitive applications.
1
Introduction.............................................................................................................................................................................3
1.1 Description.........................................................................................................................................................................
1.2
Applications........................................................................................................................................................................3
1.3 Features.............................................................................................................................................................................
2 Electrical Performance Specifications.................................................................................................................................
3
Schematic................................................................................................................................................................................5
4.1 Enable Switches - SW1 and SW2.....................................................................................................................................
4.2 Switching Frequency Select Switch - SW3.......................................................................................................................
Descriptions.......................................................................................................................................................6
Setup................................................................................................................................................................................8
5.1 Equipment..........................................................................................................................................................................
5.2 Recommended Setup........................................................................................................................................................
6 Test Procedure......................................................................................................................................................................
Procedure...........................................................................................................................................................10
6.2 Line/Load Regulation and Efficiency Measurement Procedure.......................................................................................
Procedure........................................................................................................................................................10
7.1 Efficiency..........................................................................................................................................................................
7.2 Line and Load Regulation................................................................................................................................................
7.3 Output Voltage Ripple......................................................................................................................................................
7.4 Switch Node Waveforms..................................................................................................................................................
9 Bill of Materials.....................................................................................................................................................................
10 Revision History.................................................................................................................................................................
Figure 5-1. TPS53126EVM-600 Recommended Test Setup.......................................................................................................
Figure 8-1. Top Assembly..........................................................................................................................................................
Figure 8-2. Bottom Assembly....................................................................................................................................................
Layer.................................................................................................................................................................16
Figure 8-4. Bottom Layer...........................................................................................................................................................
SLVU435A - FEBRUARY 2011 - REVISED JANUARY 2022
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ABSTRACT
Table of Contents
Descriptions................................................................................................................................6
Procedure..............................................................................................................10
Curves.......................................................................................................11
Layout.................................................................................................................................15
List of Figures
Schematic.................................................................................................................................5
= 1.8 V, I
OUT2
= 8 V-22 V, V
IN
= 8 V-22 V, V
IN
OUT2
= 12 V, V
IN
= 12 V, V
= 1.8 V, I
IN
OUT2
Copyright © 2022 Texas Instruments Incorporated
Ripple............................................................................................7
A)....................................................................11
A)......................................................................11
= 0 A-4 A)...........................................................
= 1.8 V, I
= 0 A-4 A).............................................................
OUT2
= 350 kHz)..................................................
= 4 A, F
= 350 kHz)....................................................
OUT2
SW
= 350
kHz).....................................................14
= 350
kHz).....................................................14
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Summary of Contents for Texas Instruments TPS53126EVM-600
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Page 1: Table Of Contents
Table of Contents User’s Guide TPS53126 Buck Controller Evaluation Module User's Guide ABSTRACT The TPS53126EVM-600 Evaluation Module presents an easy-to-use reference design for a common, dual- output power supply using the TPS53126 controller in cost-sensitive applications. Table of Contents Introduction.....................................3 1.1 Description.................................. - Page 2 Trademarks www.ti.com Figure 8-5. Internal Layer 1............................... Figure 8-6. Internal Layer 2............................... List of Tables Table 2-1. TPS53126EVM-600 Electrical and Performance Specifications.................4 Table 4-1. TPS53126EVM-600 Test Points Description......................Table 9-1. TPS53126EVM-600 Bill of Materials.........................18 Trademarks ™ D-CAP2 is a trademark of Texas Instruments.
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Page 3: Introduction
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 TPS53126EVM-600 includes switches and test points to assist users in evaluating the performance of the TPS53126 controller in their applications. -
Page 4: Electrical Performance Specifications
Electrical Performance Specifications www.ti.com 2 Electrical Performance Specifications Table 2-1. TPS53126EVM-600 Electrical and Performance Specifications Parameter Notes and Conditions Unit INPUT CHARACTERISTICS Input voltage Input Current = 12 V, I = 4 A, I = 4 A – OUT1 OUT2... -
Page 5: Schematic
Schematic 3 Schematic For Reference Only, See Table 9-1 for Specific Values Figure 3-1. TPS53126EVM-600 Schematic SLVU435A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53126 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 6: Connector And Test Point Descriptions
4 Connector and Test Point Descriptions 4.1 Enable Switches – SW1 and SW2 TPS53126EVM-600 includes independent enable switches for each of the two outputs. When the switch is in the DIS position, the channel is disabled and discharged per the TPS53126’s internal discharge characteristics. -
Page 7: Figure 4-1. Tip And Barrel Measurement For Output Voltage
4.3.5 5-V Regulator Output Monitoring – TP3 and TP10 TPS53126EVM-600 provides a test point for measuring the output of the internal 5-V regulator. TP10 monitors the output voltage of the internal 5-V regulator. To use TP10, connect a voltmeter positive terminal to TP10 and negative terminal to TP3. -
Page 8: Test Setup
J1 to LOAD1 and J2 to LOAD2 – The connection between J1 and LOAD1, and J2 and LOAD2 of TPS53126EVM-600 can carry as much as 4 Adc each. The minimum recommended wire size is AWG 14 with the total length of wire less than 2 feet (1-foot input, 1-foot return). -
Page 9: Figure 5-1. Tps53126Evm-600 Recommended Test Setup
Test Setup LOAD1 1.05V @ LOAD2 1.8 V @ Figure 5-1. TPS53126EVM-600 Recommended Test Setup SLVU435A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53126 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 10: Test Procedure
6.2 Line/Load Regulation and Efficiency Measurement Procedure 1. Set up TPS53126EVM-600 per Section 5.2. 2. Start up the TPS53126EVM-600 per Section 6.1. 3. Adjust VIN to desired value between 8 Vdc and 22 Vdc. 4. Adjust LOAD1/LOAD2 to desired load between 0 Adc and 4 Adc. -
Page 11: Performance Data And Typical Characteristic Curves
Figure 7-1 through Figure 7-8 present typical performance curves for the TPS53126EVM-600. Because actual performance data can be affected by measurement techniques and environmental variables, these curves are presented for reference and may differ from actual field measurements. 7.1 Efficiency... -
Page 12: Line And Load Regulation
Figure 7-4. Output Voltage vs Load (V = 8 V–22 V, V = 1.8 V, I = 0 A–4 A) OUT2 OUT2 TPS53126 Buck Controller Evaluation Module User's Guide SLVU435A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 13: Output Voltage Ripple
= 12 V, V = 1.8 V, I = 4 A, F = 350 kHz) OUT2 OUT2 SLVU435A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53126 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 14: Switch Node Waveforms
= 12 V, V = 1.08 V, I = 4 A, F = 350 kHz) OUT2 OUT2 TPS53126 Buck Controller Evaluation Module User's Guide SLVU435A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 15: Evm Assembly Drawings And Layout
Figure 8-6) show the design of the TPS53126EVM-600 printed-circuit board (PCB). The EVM has been designed using a 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 TPS53126 control integrated circuit in a practical application. -
Page 16: Figure 8-3. Top Layer
EVM Assembly Drawings and Layout www.ti.com Figure 8-3. Top Layer Figure 8-4. Bottom Layer TPS53126 Buck Controller Evaluation Module User's Guide SLVU435A – FEBRUARY 2011 – REVISED JANUARY 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 17: Figure 8-5. Internal Layer 1
EVM Assembly Drawings and Layout Figure 8-5. Internal Layer 1 Figure 8-6. Internal Layer 2 SLVU435A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53126 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 18: Bill Of Materials
Figure 3-1 and assembly locations in Figure 8-1 Figure 8-2. Components with a quantity of 0 listed are not populated on the PCB but are provided for reference. Table 9-1. TPS53126EVM-600 Bill of Materials RefDes Value Description Size Part Number Capacitor, Aluminum, 25V, 20% 0.328 x 0.390 inch... -
Page 19: Revision History
Updated the numbering format for tables, figures, and cross-references throughout the document....3 • Updated the user's guide title..........................SLVU435A – FEBRUARY 2011 – REVISED JANUARY 2022 TPS53126 Buck Controller Evaluation Module User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... - Page 20 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 21 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 22 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 23 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 24 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 25 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...
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