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User's Guide
TPS785EVM-033 Evaluation Module
This user's guide describes the operational use of the TPS785EVM-033 evaluation module (EVM) as a
reference design for engineering demonstration and evaluation of the TPS785QDRBRQ1 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 demonstration kit, evaluation board, and evaluation module are
synonymous with the TPS785EVM-033.
Table 1-1
lists the related documentation available through the Texas Instruments web site at www.ti.com.
SBVU069 – FEBRUARY 2021
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ABSTRACT
Table 1-1. Related Documentation
Device
TPS785-Q1
Copyright © 2021 Texas Instruments Incorporated
Literature Number
SBVS388
TPS785EVM-033 Evaluation Module
1
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Summary of Contents for Texas Instruments TPS785EVM-033
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Page 1: Table 1-1. Related Documentation
TPS785EVM-033 Evaluation Module ABSTRACT This user’s guide describes the operational use of the TPS785EVM-033 evaluation module (EVM) as a reference design for engineering demonstration and evaluation of the TPS785QDRBRQ1 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: Table Of Contents
List of Tables Table 1-1. Related Documentation.............................. (1) (2) (3) (4) Table 8-1. TPS785EVM-033 ............................8 Trademarks All trademarks are the property of their respective owners. TPS785EVM-033 Evaluation Module SBVU069 – FEBRUARY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 3: Introduction
Introduction 1 Introduction Texas Instruments TPS785EVM-033 EVM assists design engineers to evaluate the operation and performance of the TPS785-Q1 family of linear regulators for possible use in their own circuit application. This particular EVM configuration contains a single 1 A low-IQ, low-dropout regulator for automotive systems. The regulator is capable of delivering up to 1 A to the load with a V range of 1.65 V to 6 V. -
Page 4: Evm Setup
EVM Setup www.ti.com 2 EVM Setup This section describes how to properly connect and set up the TPS785EVM-033, including the jumpers and connectors on the EVM board. 2.1 Input/Output Connector and Jumper Descriptions 2.1.1 J1 – VIN (Banana Jack) Input power-supply voltage connector. Twist together the positive input lead and ground return lead from the input power supply, and keep them as short as possible to minimize input inductance. -
Page 5: Soldering Guidelines
2. Enable the output by jumping J5 (the EN pin) to VIN. 3. Vary the respective load and input voltage, as necessary, for test purposes. SBVU069 – FEBRUARY 2021 TPS785EVM-033 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 6: Pcb Layout
Figure 6-1. Top Composite View Figure 6-2. Top Layer Routing Figure 6-3. Signal Layer 1 Routing Figure 6-4. Signal Layer 2 Routing Figure 6-5. Bottom Layer Routing TPS785EVM-033 Evaluation Module SBVU069 – FEBRUARY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 7: Schematic
Vout 1µF 2.2uF 47µF 1µF 47µF 2.2uF IN_S OUT_S TPS78501QDRBQ1 1.0M 0.01uF 10.7k J11A J11B VOUT 21.5k 8.06k 6.19k 3.40k Figure 7-1. TPS785EVM-033 Schematic SBVU069 – FEBRUARY 2021 TPS785EVM-033 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 8: Bill Of Materials
Testpoint_Keystone_ 5016 Keystone TP2, Compact, SMT Compact TP3, TP4, TP5, TP6, 1-A, Low-IQ Low- DRB0008F TPS78501QDRBQ1 Texas Texas Dropout Regulator, Instruments Instruments DRB0008F (VSON-8) TPS785EVM-033 Evaluation Module SBVU069 – FEBRUARY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 9 These assemblies must comply with workmanship standards IPC-A-610 Class 2. Unless otherwise noted in the Alternate Part Number or Alternate Manufacturer columns, all parts may be substituted with equivalents. SBVU069 – FEBRUARY 2021 TPS785EVM-033 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
- Page 10 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 11 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 12 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 13 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 14 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 15 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products.IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...
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