Texas Instruments TPS51375 User Manual
Texas Instruments TPS51375 User Manual

Texas Instruments TPS51375 User Manual

Step-down converter evaluation module

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EVM User's Guide: TPS51375EVM
TPS51375 Step-Down Converter Evaluation Module
Description
The TPS51375EVM is a fully assembled and tested
circuit for evaluating the TPS51375 converter. This
EVM operates typical 19.5V input, and provides a
0.77V output at 12A. Integrated low R
MOSFETs enable high efficiency and offer ease of
use with a minimal external component count for
space-constrained power systems.
Features
4.5V to 24V input voltage range
SLUUD37 – JULY 2024
Submit Document Feedback
0.6V to 5.5V adjustable output voltage range
Support 12A continuous output current
PSM mode under light load
Fast load transient response optimizing for VNN-
AON rail in Intel MTL/ARL
power
DS(ON)
Applications
Notebook and PC computers
Ultrabook, tablet computers
TV,
Distributed power systems
Copyright © 2024 Texas Instruments Incorporated
STB
TPS51375 Step-Down Converter Evaluation Module
Description
1

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Summary of Contents for Texas Instruments TPS51375

  • Page 1 Support 12A continuous output current The TPS51375EVM is a fully assembled and tested • PSM mode under light load circuit for evaluating the TPS51375 converter. This • Fast load transient response optimizing for VNN- EVM operates typical 19.5V input, and provides a AON rail in Intel MTL/ARL 0.77V output at 12A.
  • Page 2: Kit Contents

    This user's guide describes the characteristics, operation, performance, and use of the Texas Instruments' TPS51375 evaluation module (EVM). The TPS51375EVM is designed to help user easily evaluate and test the operation and functionality of the TPS51375. This user's guide includes the following: •...
  • Page 3: Device Information

    Figure 1-1. TPS51375 Synchronous Buck Regulator Simplified Schematic 1.4 Device Information The TPS51375 evaluation module (EVM) is a single, synchronous buck converter providing 0.77V at 12A from a 4.5V to 24V input. To simulate the wire resistance from buck converter to load, there are additional resistors placed on the output route.
  • Page 4 3. Connect voltmeter 1 at VIN_SNS and GND_SNS connection points to measure the input voltage. 4. Connect ammeter 1 to measure the input current and set to at least 1-second aperture time. TPS51375 Step-Down Converter Evaluation Module SLUUD37 – JULY 2024 Submit Document Feedback Copyright ©...
  • Page 5 8. Decrease load to 0A. Decrease input source voltage to 0V. Decrease bypass source voltage to 0V. SLUUD37 – JULY 2024 TPS51375 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 6 3.1.2 Conversion Efficiency 100% = 6.5V = 12V = 19.5V 0.01 10 15 Iout_Set (A) Figure 3-1. Efficiency, V = 5V, V = 0.77V TPS51375 Step-Down Converter Evaluation Module SLUUD37 – JULY 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 7 EN = 2V/div Vout = 200mV/div IL = 5A/div s /div ¡ Figure 3-3. Shutdown Relative to EN, V = 19.5V, I = 12A SLUUD37 – JULY 2024 TPS51375 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 8 Iout = 5A/div s /div ¡ Figure 3-5. Load Transient Response, V = 19.5V, V = 3.3V, 0A to 12A at 1.6A/µs TPS51375 Step-Down Converter Evaluation Module SLUUD37 – JULY 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 9 Iout = 5A/div s /div ¡ Figure 3-7. Load Transient Response, V = 19.5V, V = 3.3V, 0A to 10A at 9.5A/µs SLUUD37 – JULY 2024 TPS51375 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 10 Vout = 10mV/div (AC coupled) SW = 10V/div s /div ¡ Figure 3-9. TPS51375EVM Output Voltage Ripple, I = 0.1A, PSM Mode TPS51375 Step-Down Converter Evaluation Module SLUUD37 – JULY 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 11 = 12A, T = 25°C, No Airflow Figure 3-12. Thermal Performance, V = 19.5V, I = 12A, T = 25°C, No Airflow SLUUD37 – JULY 2024 TPS51375 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 12: Pcb Layout

    Figure 4-5 show the design of the TPS51375EVM using a four-layer PCB with 2-oz copper thickness. Figure 4-2. Top Copper (Top View) TPS51375 Step-Down Converter Evaluation Module SLUUD37 – JULY 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 13 Hardware Design Files Figure 4-3. Layer 2 Copper (Top View) Figure 4-4. Layer 3 Copper (Top View) Figure 4-5. Bottom Copper (Top View) SLUUD37 – JULY 2024 TPS51375 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 14 Hardware Design Files www.ti.com 4.2.1 Multi-Layer Stackup Figure 4-6. Layer Stackup 4.2.2 Component Drawings Figure 4-7. Top Component Drawing Figure 4-8. Bottom Component Drawing TPS51375 Step-Down Converter Evaluation Module SLUUD37 – JULY 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 15 Yageo America RES, 49.9, 0.1%, 0.1 W, 0603 RT0603BRD0749R9L Yageo America RES, 5.1, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 CRCW06035R10JNEA Vishay-Dale SLUUD37 – JULY 2024 TPS51375 Step-Down Converter Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 16 RES, 90.9 k, 1%, 0.1 W, 0603 RC0603FR-0790K9L Yageo Unless otherwise noted in the Alternate Part Number or Alternate Manufacturer columns, all parts can be substituted with equivalents. TPS51375 Step-Down Converter Evaluation Module SLUUD37 – JULY 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 17: Additional Information

    All trademarks are the property of their respective owners. 7 Related Documentation For related documentation, see the following: • TPS51375 4.5V to 24V, 12A Synchronous Buck Converter data sheet SLUUD37 – JULY 2024 TPS51375 Step-Down Converter Evaluation Module Submit Document Feedback...
  • Page 18 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 19 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 20 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 21 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 22 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 23 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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