Texas Instruments TPS544C27EVM User Manual
Texas Instruments TPS544C27EVM User Manual

Texas Instruments TPS544C27EVM User Manual

4v to 18v, 35a step-down converter evaluation module

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EVM User's Guide: TPS544C27
TPS544C27EVM 4V to 18V, 35A Step-Down Converter
Evaluation Module
Description
The TPS544C27EVM is an evaluation module for the
TPS544C27 DC/DC synchronous buck converter with
a digital PMBus and a series voltage identification
(SVID) interface to accommodate Intel processors.
The evaluation module accepts an 8V to 16V input
and can deliver an output current up to 35A. The
converter uses D-CAP+
transient response, using less output capacitance to
save board space.
Get Started
1. Order the TPS544C27EVM on
2. Download the Fusion GUI software on
FUSION_DIGITAL_POWER_DESIGNER
SLUUCU5 – JUNE 2024
Submit Document Feedback
control scheme for fast
ti.com
Figure 1-1. EVM User Interface
Copyright © 2024 Texas Instruments Incorporated
Features
Evaluate TPS544C27 device using the provided
test points on the EVM
Evaluate TPS544C27 device configuration and
monitoring using Fusion GUI
Applications
Sever and cloud-computing POLs
Hardware accelerator
Network interface card
Broadband,
networking
Wireless infrastructure
TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module
Description
and
optical
1

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Summary of Contents for Texas Instruments TPS544C27EVM

  • Page 1 1. Order the TPS544C27EVM on ti.com 2. Download the Fusion GUI software on FUSION_DIGITAL_POWER_DESIGNER Figure 1-1. EVM User Interface SLUUCU5 – JUNE 2024 TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 2 1 Evaluation Module Overview 1.1 Introduction The TPS544C27EVM is a configurable single output buck converter module. The TPS544C27EVM uses a nominal 12V bus to produce a regulated 1V output up to 35A of load current. This user's guide describes the characteristics, operation and using of TPS544C27EVM.
  • Page 3: Electrical Performance Specifications

    TPS544C27 device in a buck design. TPS544C27 is designed from a nominal 12V bus to produce a regulated 1V output up to 35A of load current. The TPS544C27EVM provides a number of test points to evaluate the performance of device.
  • Page 4 Output J3(1V output) – The minimum recommended wire size is AWG #10, with the total length of wire less than 2 feet (1 foot output, 1 foot return). A thicker wire gauge can be required to minimize the voltage drop the wires. TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module SLUUCU5 – JUNE 2024 Submit Document Feedback...
  • Page 5 Override internal LDO with external 5V bias for improving efficiency PG PULLUP PGOOD pullup. 2-pin header to pull up PGOOD to VCC SLUUCU5 – JUNE 2024 TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 6 VORST pullup. 2-pin header to pull up VORST to VCC SV_DIO 2-pin header for SVID bi-directional data line IIN Option 2-pin header for input current measurement option TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module SLUUCU5 – JUNE 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 7 VOUT– (GND) 2.4 Control Loop Gain and Phase Measurement The TPS544C27EVM includes a R7 10Ω series resistor in the feedback loop for V . The resistor is accessible at the test points TP14 (BODE_CHA) and TP8 (VOUT/BODE_CHB) for loop response analysis. These test points must be used during loop response measurements as the perturbation injecting points for the loop .
  • Page 8 EN signal goes high. 2.6 Input Current Measurement TPS544C27EVM default setting is that input current measurement feature is not used with IN_IN_P and I_IN_M shorted together then shorts to PVIN through J16 shunt on. To test I_IN_P and I_IN_M feature, remove the shunt from J16, connect pin1 of J2 (IIN) to pin2 of J1 (PVIN) with a short 10-AWG wires or better.
  • Page 9: Monitor Page

    Control pin activation and OPERATION command • Margin control • Clear Fault: Selecting "Clear Faults" clears any prior fault flags SLUUCU5 – JUNE 2024 TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 10: Status Page

    Selecting Status screen from lower left corner Figure 3-4 shows the status of the device. Figure 3-4. Status screen TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module SLUUCU5 – JUNE 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 11 4 Performance Data and Typical Characteristics Curves Figure 4-1 through Figure 4-28 present typical performance curves for TPS544C27EVM. The input voltage is 12V, output voltage is 1V, unless otherwise noted. Figure 4-1. Efficiency, FCCM, Internal LDO Figure 4-2. Power Dissipation, FCCM, Internal LDO Figure 4-3.
  • Page 12 Figure 4-10. Load Regulation, FCCM, External 5V Bias Figure 4-11. Load Regulation, DCM, Internal VCC Figure 4-12. Load Regulation, DCM, External 5V Bias TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module SLUUCU5 – JUNE 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 13 Figure 4-17. Output Voltage Ripple, FCCM, 800kHz, Figure 4-18. Output Voltage Ripple, DCM, 800kHz, 0.5A Load 0.5A Load SLUUCU5 – JUNE 2024 TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 14 FCCM, Internal LDO, 35A Load, no airflow, soak 10 FCCM, External 5V Bias, 35A Load, no airflow, minutes soak 10 minutes TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module SLUUCU5 – JUNE 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 15 FCCM, Internal LDO, 35A Load, no airflow, soak 10 FCCM, External 5V Bias, 35A Load, no airflow, minutes soak 10 minutes 5 Hardware Design Files SLUUCU5 – JUNE 2024 TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 16 P GND 7-8 = P MBus a ddre s s 71h, Option 0 AGND Figure 5-1. TPS544C27EVM Schematic TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module SLUUCU5 – JUNE 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 17: Pcb Layout

    Figure 5-4. TPS544C27EVM Top Layer Figure 5-5. TPS544C27EVM Layer 2 Figure 5-6. TPS544C27EVM Layer 3 Figure 5-7. TPS544C27EVM Layer 4 SLUUCU5 – JUNE 2024 TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 18 Hardware Design Files www.ti.com Figure 5-8. TPS544C27EVM Layer 5 Figure 5-9. TPS544C27EVM Bottom Layer TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module SLUUCU5 – JUNE 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 19 J7, J11 HSEC8-110-01-S-DV-A Samtec 0.8mm, 10x2, SMT Header, 2.54mm, Header, 2.54mm, 4x2, Gold, TH TSW-104-08-L-D Samtec 4x2, TH SLUUCU5 – JUNE 2024 TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 20 Test Point, Miniature, Yellow, TH 5004 TP24 Testpoint0603 Electronics Black Miniature Keystone TP19, TP22 Test Point, Miniature, Black, TH 5001 Testpoint Electronics TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module SLUUCU5 – JUNE 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 21 6 Trademarks D-CAP+ ™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. SLUUCU5 – JUNE 2024 TPS544C27EVM 4V to 18V, 35A Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 22 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 23 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 24 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 25 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 26 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 27 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 © 2024, Texas Instruments Incorporated...

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