Texas Instruments TPS62851 EVM-139 Series User Manual Download Page 1

User’s Guide

TPS62851xEVM-139 Evaluation Module

ABSTRACT

TheTPS62851xEVM-139 facilitates the evaluation of the TPS62851x 0.5-A, 1-A and 2-A pin to pin compatible 
step-down converters in a 2.1-mm × 1.6-mm (including pins) in SOT583 package. BSR139-001 uses the 2-A 
TPS628512 device, BSR139-002 uses the 1-A TPS628511 device and BSR139-003 uses the 0.5-A TPS628510 
device. The EVMs regulate the output voltage to 1.8 V from input voltage from 2.7 V to 6 V. This user's guide 
describes the characteristics, operation, and use of the TPS62851xEVM-139 Evaluation Module (EVM) with a 
complete schematic diagram, printed circuit board layouts, and bill of materials are included in this document.

Table of Contents

1 Introduction

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2 Setup

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3 TPS62851xEVM-139 Test Results

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4 Board Layout

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5 Schematic and Bill of Materials

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6 Revision History

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List of Figures

Figure 4-1. Top Silk......................................................................................................................................................................

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Figure 4-2. Top Layer...................................................................................................................................................................

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Figure 4-3. Layer 2......................................................................................................................................................................

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Figure 4-4. Layer 3......................................................................................................................................................................

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Figure 4-5. Bottom Layer.............................................................................................................................................................

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Figure 5-1. TPS62851xEVM Schematic......................................................................................................................................

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List of Tables

Table 1-1. Performance Specifications Summary........................................................................................................................

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Table 5-1. TPS62851xEVM-139 BOM.......................................................................................................................................

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Trademarks

All trademarks are the property of their respective owners.

www.ti.com

Table of Contents

SLVUBY6A – AUGUST 2020 – REVISED JUNE 2021

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TPS62851xEVM-139 Evaluation Module

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Summary of Contents for TPS62851 EVM-139 Series

Page 1: ...mplete schematic diagram printed circuit board layouts and bill of materials are included in this document Table of Contents 1 Introduction 2 2 Setup 3 3 TPS62851xEVM 139 Test Results 3 4 Board Layout...

Page 2: ...e provided These capacitors are not required for proper operation but can be used to reduce the input and output voltage ripple and to improve the load transient response For proper operation the tota...

Page 3: ...o force the device in fixed frequency PWM operation at all load currents Place the jumper across MODE SYNC and GND to enable power save mode Connect a clock signal to MODE SYNC referenced to GND to sy...

Page 4: ...9 board layout See the TPS62851xEVM 139 tool page for more detail Figure 4 1 Top Silk Board Layout www ti com 4 TPS62851xEVM 139 Evaluation Module SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Documen...

Page 5: ...Figure 4 2 Top Layer www ti com Board Layout SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Document Feedback TPS62851xEVM 139 Evaluation Module 5 Copyright 2021 Texas Instruments Incorporated...

Page 6: ...Figure 4 3 Layer 2 Board Layout www ti com 6 TPS62851xEVM 139 Evaluation Module SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated...

Page 7: ...Figure 4 4 Layer 3 www ti com Board Layout SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Document Feedback TPS62851xEVM 139 Evaluation Module 7 Copyright 2021 Texas Instruments Incorporated...

Page 8: ...Figure 4 5 Bottom Layer Board Layout www ti com 8 TPS62851xEVM 139 Evaluation Module SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated...

Page 9: ...rdGND 0 01uF C13 NT1 Net Tie NT2 Net Tie GND 470nH L1 GND GND GND GND 470nF C2 GND GND GND GND GND 10 F C3 10 F C11 10 F C5 10 F C6 5 4 1 2 3 6 J1 5 4 1 2 3 6 J2 1 2 3 JP1 1 2 3 JP2 1 2 JP3 0 1 F C4 4...

Page 10: ...R47M MuRata Toko 1 1 1 R1 80 6 k Resistor 1 0 1 W 0402 any 1 1 1 R2 40 2 k Resistor 1 0 1 W 0402 any 1 1 1 R3 100 k Resistor 1 0 1 W 0402 any 1 1 1 R4 8 06 k Resistor 1 0 1 W 0402 any 0 0 1 U1 2 7 V...

Page 11: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 12: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 13: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 14: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 15: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 16: ...are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and...

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