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EVM User's Guide: TPS568236EVM
TPS568236 Step-Down Converter Evaluation Module
Description
The TPS568236 is a single, D-CAP3
synchronous buck converter requiring a very low
external component count. TPS568236EVM is a
fully assembled and tested circuit for evaluating the
TPS568236 converter. This EVM operates typical 12-
V input, and provides a 5.1-V output at 8-A.
SLUUCX4 – AUGUST 2023
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Features
™
control mode,
•
4.5-V to 18-V input voltage range
•
0.6-V to 5.5-V output voltage range
•
Support 8-A continuous output current
•
Selectable PSM and FCCM mode under light load
•
Fast load transient response
Applications
•
Digital TV, set-top box, gaming consoles
•
Server, storage and networking point-of-load
•
Industrial PC and factory automation applications
•
Distributed power systems with typical 5-V, 12-V,
15-V input
Top View of TPS568236EVM
Copyright © 2023 Texas Instruments Incorporated
TPS568236 Step-Down Converter Evaluation Module
Description
1
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Table of Contents
Related Manuals for Texas Instruments TPS568236
Summary of Contents for Texas Instruments TPS568236
- Page 1 Support 8-A continuous output current fully assembled and tested circuit for evaluating the • Selectable PSM and FCCM mode under light load TPS568236 converter. This EVM operates typical 12- • Fast load transient response V input, and provides a 5.1-V output at 8-A.
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Page 2: Kit Contents
1 Evaluation Module Overview 1.1 Introduction The TPS568236 evaluation module (EVM) is a single, synchronous buck converter providing 5.1-V at 8-A from a 6-V to 18-V input. This user’s guide describes the TPS568236EVM performance. Table 1-1. Input Voltage and Output Current Summary... -
Page 3: Mode Selection
R4 and R6 for a specific output voltage can be calculated using Equation UPPER LOWER 2.2.2 Mode Selection TPS568236 has a MODE pin that can offer two different options of light load performance, as shown in Table 2-2. Table 2-2. MODE Pin Settings MODE Pin... -
Page 4: Test Setup And Results
The following figures show the TPS568236EVM start-up waveform relative to EN. EN=5V/div VOUT=2V/div PG=5V/div IL=2A/div Figure 3-1. Start-Up Relative to EN, I = 0.1 A (2ms/div) TPS568236 Step-Down Converter Evaluation Module SLUUCX4 – AUGUST 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... - Page 5 Figure 3-3. Shutdown Relative to EN, I = 0.1 A (2ms/div) EN=5V/div VOUT=2V/div PG=5V/div IL=5A/div Figure 3-4. Shutdown Relative to EN, I = 8 A (2ms/div) SLUUCX4 – AUGUST 2023 TPS568236 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
- Page 6 Figure 3-6. TPS568236EVM Output Voltage Ripple, I = 10 mA, FCCM Mode (1us/div) VOUT=20mV/div (AC coupled) SW=5V/div Figure 3-7. TPS568236EVM Output Voltage Ripple, I = 8 A (1us/div) TPS568236 Step-Down Converter Evaluation Module SLUUCX4 – AUGUST 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
- Page 7 Hardware Design Files 4 Hardware Design Files 4.1 Schematic The following image shows the schematic for the TPS568236EVM. Figure 4-1. TPS568236EVM Schematic Diagram SLUUCX4 – AUGUST 2023 TPS568236 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
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Page 8: Pcb Layout
VIN, VOUT, and GND. Also on the top layer are connections for the pins of the TPS568236 and a large area filled with ground. Most of the signal traces are also located on the top side. - Page 9 Hardware Design Files Figure 4-4. Inner1 Layer Figure 4-5. Inner2 Layer Figure 4-6. Bottom Layer SLUUCX4 – AUGUST 2023 TPS568236 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
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Page 10: Bill Of Materials
CAP, CERM, 22 μF, 10 V, ±20%, X5R, 0805 GRM21BR61A226ME44L MuRata Unless otherwise noted in the Alternate Part Number or Alternate Manufacturer columns, all parts can be substituted with equivalents. TPS568236 Step-Down Converter Evaluation Module SLUUCX4 – AUGUST 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... - Page 11 All trademarks are the property of their respective owners. 6 References For related documentation, see the following: Texas Instruments, TPS568236 4.5-V to 18-V Input, 8-A Synchronous Buck Converter data sheet SLUUCX4 – AUGUST 2023 TPS568236 Step-Down Converter Evaluation Module Submit Document Feedback...
- Page 12 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 13 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 14 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 15 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 16 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 © 2023, Texas Instruments Incorporated...
- Page 17 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 © 2023, Texas Instruments Incorporated...