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User's Guide
TPS7A14EVM-058 Evaluation Module
This user's guide describes the operational use of the TPS7A14EVM-058 evaluation module (EVM) as a
reference design for engineering demonstration and evaluation of the TPS7A14 low-dropout linear regulator
(LDO). Included in this user's guide are setup and operating instructions, thermal and layout guidelines, a
printed-circuit board (PCB) layout, a schematic diagram, and a bill of materials (BOM).
Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the
TPS7A14EVM-058.
1
Introduction.............................................................................................................................................................................3
2
Setup........................................................................................................................................................................................3
Operation...................................................................................................................................................4
2.4 Optional Load Transient Circuit Operation.........................................................................................................................
Layout...........................................................................................................................................................................7
SBVU073 - NOVEMBER 2021
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ABSTRACT
Figure 1-1. TPS7A14EVM-058 Evaluation Module
Table of Contents
Descriptions.........................................................................................................................3
Descriptions..........................................................................................3
Copyright © 2021 Texas Instruments Incorporated
Table of Contents
TPS7A14EVM-058 Evaluation Module
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Summary of Contents for Texas Instruments TPS7A14EVM-058
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Page 1: Table Of Contents
ABSTRACT Figure 1-1. TPS7A14EVM-058 Evaluation Module This user's guide describes the operational use of the TPS7A14EVM-058 evaluation module (EVM) as a reference design for engineering demonstration and evaluation of the TPS7A14 low-dropout linear regulator (LDO). Included in this user's guide are setup and operating instructions, thermal and layout guidelines, a printed-circuit board (PCB) layout, a schematic diagram, and a bill of materials (BOM). - Page 2 List of Figures Figure 1-1. TPS7A14EVM-058 Evaluation Module........................Figure 2-1. TPS7A14EVM-058 Turn On............................Figure 2-2. TPS7A14EVM-058 With Current Probes Attached....................Figure 2-3. TPS7A14EVM-058 Load Transient Results: 1-mA to 950-mA Load Step..............6 Figure 2-4. TPS7A14EVM-058 Load Transient Results: 950-mA to 1-mA Load Step..............6 Figure 3-1.
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Page 3: Introduction
Introduction 1 Introduction The Texas Instruments TPS7A14EVM-058 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS7A14 LDO voltage regulator. As shown in Table 1-1, the TPS7A14EVM-058 contains one TPS7A14 LDO voltage regulator in the DSBGA package. An optional load transient circuit is also included to assist the user with high-speed load transient testing. -
Page 4: Tps7A14 Ldo Operation
TPS7A14 LDO after VIN is applied. Figure 2-1 shows the result of the TPS7A14EVM-058 during turn on. The blue trace is the enable voltage, and the red trace is the output voltage. Figure 2-1. TPS7A14EVM-058 Turn On TPS7A14EVM-058 Evaluation Module SBVU073 –... -
Page 5: Optional Load Transient Circuit Operation
Optional kelvin sense points are provided using the SMA connectors J1 (VIN) and J2 (VOUT). 2.4 Optional Load Transient Circuit Operation The TPS7A14EVM-058 evaluation module contains an optional high-performance load transient circuit to allow efficient testing of the TPS7A14 LDO load transient performance. To use the optional load transient circuit, install the correct components in accordance with the application. -
Page 6: Figure 2-3. Tps7A14Evm-058 Load Transient Results: 1-Ma To 950-Ma Load Step
1-mA to 950-mA load step on VOUT of the LDO, with only a 2.2-μF capacitor on the output of the LDO. Figure 2-3. TPS7A14EVM-058 Load Transient Figure 2-4. TPS7A14EVM-058 Load Transient Results: 1-mA to 950-mA Load Step... -
Page 7: Board Layout
Figure 3-6 illustrate the board layout for the TPS7A14EVM-058 PCB. The TPS7A14EVM-058 dissipates power, which may cause some components to experience an increase in temperature. The TPS7A14 LDO, LMG1020YFFR gate driver, and pulsed resistors R2, R3, R4, R5, and R6 are most at risk of raising to a high junction temperature during normal operation. -
Page 8: Figure 3-5. Bottom Layer Routing
Board Layout www.ti.com Figure 3-6. Bottom Assembly Layer and Silk Figure 3-5. Bottom Layer Routing Screen TPS7A14EVM-058 Evaluation Module SBVU073 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 9: Tps7A14Evm Schematic
TPS7A14EVM Schematic 4 TPS7A14EVM Schematic Figure 4-1 shows a schematic for the TPS7A14EVM-058. Re vis ion His tory ECN # Approved Da te Approved by Notes VOUT BIAS SENSE BIAS SENSE Vout Ma x = 2.05V Vin Re comme nde d Ma x = 2.2V... -
Page 10: Bill Of Materials
TPS7A14EVM Schematic www.ti.com 5 Bill of Materials Table 5-1 shows the bill of materials for the TPS7A14EVM-058. Table 5-1. Bill of Materials Designator Quantity Value Description PackageReference PartNumber Manufacturer Alternate Alternate PartNumber Manufacturer !PCB1 Printed Circuit Board LP058 1µF 1µF ±10% 10V Ceramic Capacitor X7R... - Page 11 RES, 0, 5%, 0.125 W, AEC-Q200 Grade ERJ-6GEY0R00V Panasonic 0, 0805 R11, R12 RES, 0, 1%, 0.1 W, AEC-Q200 Grade 0, RMCF0603ZT0R00 Stackpole 0603 Electronics Inc SBVU073 – NOVEMBER 2021 TPS7A14EVM-058 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- 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 © 2019, 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 © 2021, Texas Instruments Incorporated...
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