Microchip Technology MCP1726 User Manual
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Microchip Technology MCP1726 User Manual

Microchip Technology MCP1726 User Manual

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MCP1726

Evaluation Board

User's Guide
© 2005 Microchip Technology Inc.
DS51550A

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Summary of Contents for Microchip Technology MCP1726

  • Page 1: Evaluation Board

    MCP1726 Evaluation Board User’s Guide © 2005 Microchip Technology Inc. DS51550A...
  • Page 2 Select Mode, Smart Serial, SmartTel, Total Endurance and WiperLock are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies.
  • Page 3 Introduction ....................7 Features ....................7 Getting Started ..................7 Testing Circuit 1 of the MCP1726 1A LDO Evaluation Board ....8 Testing Circuit 2 of the MCP1726 1A LDO Evaluation Board ....10 Appendix A. Schematics and Layouts ..............13 Introduction .....................
  • Page 4 MCP1726 Evaluation Board User’s Guide NOTES: © 2005 Microchip Technology Inc. DS51550A-page iv...

  • Page 5: Preface

    • Customer Support • Document Revision History DOCUMENT LAYOUT This document describes how to use the MCP1726 1A LDO Evaluation Board. The manual layout is as follows: • Chapter 1. “Product Overview” – Important information about the MCP1726 1A LDO Evaluation Board.

  • Page 6: Conventions Used In This Guide

    (void) user { ... RECOMMENDED READING This user's guide describes how to use MCP1726 1A LDO Evaluation Board. The following Microchip documents are available and recommended as supplemental reference resources. MCP1726 Data Sheet, “1A, Low-Voltage, Low Quiescent Current LDO Regulator”, DS21936 This data sheet provides detailed information regarding the MCP1726 product family.
  • Page 7 The Development Systems Information Line numbers are: 1-800-755-2345 – United States and most of Canada 1-480-792-7302 – Other International Locations DOCUMENT REVISION HISTORY Revision A (April 2005) • Initial Release of this Document. © 2005 Microchip Technology Inc. DS51550A-page 3...
  • Page 8 MCP1726 Evaluation Board User’s Guide NOTES: © 2005 Microchip Technology Inc. DS51550A-page 4...

  • Page 9: Chapter 1. Product Overview

    Chapter 1. Product Overview INTRODUCTION The MCP1726 1A LDO Evaluation Board is used to evaluate the Microchip MCP1726 1A, low voltage, low-quiescent current, Low-Dropout (LDO) regulator. This evaluation board contains two circuits, one for the 8-pin DFN package and one for the 8-pin SOIC package.

  • Page 10: What Is The Mcp1726 1A Ldo Evaluation Board

    MCP1726 Evaluation Board User’s Guide WHAT IS THE MCP1726 1A LDO EVALUATION BOARD? The MCP1726 1A LDO Evaluation Board allows the user to evaluate both the fixed and adjustable versions of the part in the 8-pin SOIC and 8-lead 3X3 DFN packages. An on-board potentiometer allows the user to easily set the output voltage of the adjustable voltage version of the device.

  • Page 11: Chapter 2. Installation And Operation

    The MCP1726 1A LDO Evaluation Board demonstrates Microchip’s 1A Low-Quiescent Current, Low-Dropout (LDO) regulator.The evaluation board contains two independent circuits that allow the user to evaluate the MCP1726 in the 8-pin SOIC and the 8-pin 3X3 DFN packages. The evaluation board uses a potentiometer to adjust the output voltage of the MCP1726 device across its entire output voltage range.

  • Page 12: Testing Circuit 1 Of The Mcp1726 1A Ldo Evaluation Board

    The power supply input voltage must be in the specified operating range for the board to operate correctly. The UVLO feature of the MCP1726 prevents the device from operating when the input voltage is too low (see data sheet for UVLO thresholds).
  • Page 13 2.4.4 Power Good Time Delay The MCP1726 device has a power good time delay feature that allows the user to set the time delay from when the output voltage is in regulation to when the power good output (PWRGD) goes high. This feature is implemented by the C...

  • Page 14: Testing Circuit 2 Of The Mcp1726 1A Ldo Evaluation Board

    The power supply input voltage must be in the specified operating range for the board to operate correctly. The UVLO feature of the MCP1726 prevents the device from operating when the input voltage is too low (see data sheet for UVLO thresholds).
  • Page 15 2.5.4 Power Good Time Delay The MCP1726 device has a power good time delay feature that allows the user to set the time delay from when the output voltage is in regulation to when the power good output (PWRGD) goes high. This feature is implemented by the C...
  • Page 16 MCP1726 Evaluation Board User’s Guide NOTES: © 2005 Microchip Technology Inc. DS51550A-page 12...

  • Page 17: Appendix A. Schematics And Layouts

    MCP1726 EVALUATION BOARD USER’S GUIDE Appendix A. Schematics and Layouts INTRODUCTION This appendix contains the following schematics and layouts for the MCP1726 1A LDO Evaluation Board. • Board Schematic • Board Outline • Board – Top Layer • Board – Bottom Layer ©...
  • Page 18 MCP1726 Evaluation Board User’s Guide FIGURE A-1: Board Schematic. © 2005 Microchip Technology Inc. DS51550A-page 14...
  • Page 19 Schematics and Layouts FIGURE A-2: Board – Outline. © 2005 Microchip Technology Inc. DS51550A-page 15...
  • Page 20 MCP1726 Evaluation Board User’s Guide FIGURE A-3: Board – Top Layer. © 2005 Microchip Technology Inc. DS51550A-page 16...
  • Page 21 Schematics and Layouts FIGURE A-4: Board – Bottom Layer. © 2005 Microchip Technology Inc. DS51550A-page 17...
  • Page 22 MCP1726 Evaluation Board User’s Guide NOTES: © 2005 Microchip Technology Inc. DS51550A-page 18...

  • Page 23: Appendix B. Bill-Of-Materials (Bom)

    TP10, TP11, TP12 1A Low Quiescent Current LDO, Adjust- Microchip MCP1726-ADJE/SN able Output, 8-Pin SOIC Package Techonology Inc. 1A Low Quiescent Current LDO, Adjust- Microchip MCP1726-ADJE/MF able Output, 3X3 DFN Package Techonology Inc. © 2005 Microchip Technology Inc. DS51550A-page 19...
  • Page 24 Fax: 86-532-502-7205 Tel: 765-864-8360 Fax: 765-864-8387 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 San Jose Mountain View, CA Tel: 650-215-1444 Fax: 650-961-0286 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 03/01/05 © 2005 Microchip Technology Inc. DS51550A-page 20...
  • Page 25 Юридический адрес организации: 198099, г. Санкт-Петербург, ул. Калинина, дом 2, кор. 4, лит А. Фактический адрес организации: 198099, г. Санкт-Петербург, ул. Калинина, дом 2, кор. 4, лит А. ИНН 7802777764 КПП 780501001 Р/С 40702810422510004035 ФАКБ "АБСОЛЮТ БАНК" (ЗАО) в Санкт- Петербурге...
  • Page 26 Отличные рекомендации на рынке, уверенность в качестве поставляемой продукции делают нас надежными партнерами для наших клиентов. «ТаймЧипс» - это:  Гарантия качества поставляемой продукции;  Широкий ассортимент;  Минимальные сроки поставок;  Техническая поддержка;  Подбор комплектации;  Индивидуальный подход; ...

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