Microchip Technology MCP1726 User Manual

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MCP1726

Evaluation Board

User’s Guide

Page 2

Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Micro chip’s products as c ritical componen ts in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.

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SQTP is a service mark of Microchip T echnology Incorporated in the U.S.A.

All other trademarks mentioned herein are property of their respective companies.

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Note the following details of the code protection feature on Microchip devices:

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company’s quality system processes and procedures are for its PICmicro

8-bit MCUs, KEELOQ

code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.

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MCP1726 EVALUATION

BOARD USER’S GUIDE

Table of Contents

Preface ...........................................................................................................................1

Chapter 1. Product Overview........................................................................................ 5

1.1 Introduction ...............................................................................................5

1.2 What is the MCP1726 1A LDO Evaluation Board? .................................. 6

1.3 What the MCP1726 1A LDO Evaluation Board Kit Includes ....................6

Chapter 2. Installation and Operation..........................................................................7

2.1 Introduction ...............................................................................................7

2.2 Features ...................................................................................................7

2.3 Getting Started ......................................................................................... 7

2.4 Testing Circuit 1 of the MCP1726 1A LDO Evaluation Board ..................8

2.5 Testing Circuit 2 of the MCP1726 1A LDO Evaluation Board ................ 10

Appendix A. Schematics and Layouts ......................................................................13

A.1 Introduction .............................................................................................13

A.2 Highlights ................................................................................................ 13

Appendix B. Bill-Of-Materials (BOM) .........................................................................19

Worldwide Sales and Service ....................................................................................20

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MCP1726 Evaluation Board User’s Guide

NOTES:

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MCP1726 EVALUATION

BOARD USER’S GUIDE

Preface

INTRODUCTION

This chapter contains general information that will be useful to know before using the MCP1726 1A LDO Evaluation Board. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Recommended Reading

• The Microchip Web Site

• 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. “Produ ct Ov er v ie w” – Important information about the MCP1726 1A LDO Evaluation Board.

• Chapter 2. “Installation and Operation” – Includes instructions on how to get started with this evaluation board and a description of the evaluation board operation.

• Appendix A. “Schematics and Layouts” – Shows the schematic and layout diagrams for the MCP1726 1A LDO Evaluation Board.

• Appendix B. “Bill-Of-Materials (BOM)” – Lists the parts used to build the MCP1726 1A LDO Evaluation Board.

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document.

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MCP1726 Evaluation Board User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following docum entat io n conven tion s:

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 Qu iescent Current LDO Regulator”, DS21936

This data sheet provides detailed information regarding the MCP1726 product family.

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB

IDE User’s Guide

Emphasized text ...is the only comp ile r...

Initial caps A window the Output window

A dialog the Settings dialog A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

“Save project before build”

Underlined, italic text with right angle bracket

A menu path File>Save

Bold characters A dialog button Click OK

A tab Click the Power tab

Text in angl e brackets < > A key on the keyboard Press <Enter>, <F1>

Courier font:

Plain Courier Sample source code #define START

Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1 Constants 0xFF, ‘A’

Italic Courier A variable argument file.o, where file can be

any valid filename

Square brackets [ ] Optional arguments mcc18 [options] file

[options]

Curly brackets and pipe character: { | }

Choice of mutually exclus ive arguments; an OR selection

errorlevel {0|1}

Ellipses... Replaces r epeated text var_name [,

var_name...]

Represents code supplied by user

void main (void) { ... }

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Preface

THE MICROCHIP WEB SITE

Microchip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information:

• Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software

• General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online discussion groups, Microchip consultant program member listing

• Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

• Development Systems Information Line

Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.

Technical support is available through the web site at: http://support.microchip.com In additi on, t her e is a De velo pment Sys tem s In form at ion Li ne w hic h lis t s th e la tes t ve r-

sions of Microchip's development systems software products. This line also provides information on how customers can receive currently available upgrade kits.

The Development Systems Information Line numbers are: 1-800-755-2345 – United States and most of Canada 1-480-792-7302 – Other Interna tio nal Loca tio ns

DOCUMENT REVISION HISTORY

Revision A (April 2005)

• Initial Release of this Document.

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MCP1726 Evaluation Board User’s Guide

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MCP1726 EVALUATION

BOARD USER’S GUIDE

Chapter 1. Product Overview

1.1 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. Each circuit allows the user to evaluate the adjustable or fixed-voltage version of the part.

This chapter also covers the following topics:

• What is the MCP1726 1A LDO Evaluation Board?

• What the MCP1726 1A LDO Evaluation Board kit includes

FIGURE 1-1: MCP1726 Evaluation Board Schematic.

IN1

PGND

SHDN1

TP7TP8TP9

IN1

PGND

10 µF

10 kΩ

PGND

1 2 3

MCP1726_DFN

PGND

GND

SHDN

806Ω

IN1

OUT

ADJ

DELAY

PWRGD

8 7

6 5

0.01 µF

100 kΩ

PGND

10 µF

JP5JP6

806Ω

499Ω

OUT1

Power Good

TP12

TP11

TP10

IN1

IN2

PGND

SHDN1

TP1TP2TP3

IN2

PGND

4.7 µF

10 kΩ

PGND

1 2 3

MCP1726_SOIC8

PGND

GND

SHDN

806Ω

IN2

OUT

ADJ

DELAY

PWRGD

8 7

6 5

1000 pF

100 kΩ

PGND

4.7 µF

JP3JP2

806Ω

499Ω

OUT2

Power Good

TP6

TP5

TP4

IN2

JP1

JP4

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MCP1726 Evaluation Board User’s Guide

1.2 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. Status LEDs indicate when input voltage is applied and when the Power Good (PWRGD) output is in a high condition (output voltage is in regulation).

Connection terminals are provided for the input voltage, output voltage, ground, power good and shutdown.

1.3 WHAT THE MCP1726 1A LDO EVALUATION BOARD KIT INCLUDES

This MCP1726 1A LDO Evaluation Board Kit includes:

• The MCP1726 1A LDO Evaluation Board

• MCP1726 1A LDO Evaluation Board User’s Guide (DS51550)

• MCP1726 Data Sheet (DS21936)

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MCP1726 EVALUATION

BOARD USER’S GUIDE

Chapter 2. Installation and Operation

2.1 INTRODUCTION

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. The evaluation board also allows for fixed-output voltage versions of the device to be used by simply connecting the pins of a jumper connector.

2.2 FEATURES

The MCP1726 1A LDO Evaluation Board has the following features:

• Input Voltage Range: 2.3V to 6.0V

• Adjustable Output Voltage via a Potentiometer

• Output Voltage Shutdown via the SHDN

Input

• Overcurrent Protection (device feature)

• Overtemperature Protection (device feature)

• Input Undervoltage Lockout (UVLO) Protection (device feature)

• Input Power and Power Good Indication (LED)

• Power Good Delay Adjust Capability

2.3 GETTING STARTED

The MCP1726 1A LDO Evaluation Board is fully assembled and tested over its input voltage, output voltage and output current operating range. This board requires the use of an external input voltage source (+2.3V to +6.0V) and an external load (electronic or resistive). The Printed Circuit Board (PCB) design provides cooling for the MCP1726 devices. When the devices are operating with high power dissipation (over 1.0W at room ambient), additional cooling may be required to keep the devices from going into overtemperature shutdown.

The MCP1726 1A LDO Evaluation Board contains two circuits to evaluate; one for the SOIC package and one for the 3X3 DFN package. These circuits are powered independently of each other through separate connectors/test points. The circuitry for evaluating the 3X3 DFN package has inputs labeled VIN1 and SHDN1, and outputs labeled PWRGD1 and VOUT1. The circuitry for evaluating the SOIC package has inputs labeled VIN2 and SHDN2, and outputs labeled PWRGD2 and VOUT2. The ground connections for the board are all common to each other and are labeled as GND. There are a total of four connection points for ground.

All of the connections to the MCP1726 1A LDO Evaluation Board are made through surface-mount test points. These test points can be removed with a soldering iron if you wish to solder wires directly to the pads that are provided on the board.

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MCP1726 Evaluation Board User’s Guide

2.4 TESTING CIRCUIT 1 OF THE MCP1726 1A LDO EVALUATION BOARD

2.4.1 Power Input and Output Connections Powering the MCP1726 1A LDO Evaluation Board

Apply the input voltage to test points TP7 (VIN1) and TP8 (GND). Connect the positive side of the input source (+) to test point TP7 (VIN1). Connect the negative, or return, side (–) of the input source to the test point TP8 (GND). These two test points are located on the upper left side of the 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).

When input voltage is applied and is above the input UVLO threshold, the LDO output will turn on automatically. The SHDN1

input has been pulled up to VIN1 which turns the

device on. The LDO output can be turned off by pulling the SHDN1

input (TP9) low

(short SHDN1

to GND).

When input voltage is applied, the red portion of the D2 LED will illuminate. As long as input voltage is present, the red portion of this LED will be on.

Applying the load to the MCP1726 1A LDO Evaluation Board

T o apply a load to VOUT1 of the MCP1726 1A LDO Evaluation Board, the positive-side of the load (+) should be connected to test point TP12 (VOUT1). The negative side of the load (–) should be connected to test point TP10 (GND).

The maximum output current of the MCP1726 is 1.0A. If the output load exceeds this level, the MCP1726 will go into current limit at 1.7A. If, during the overload condition, the device junction temperature exceeds the overtemperature limit of 150°C, the output of the LDO will turn off and wait for the junction temperature to cool down before turning the LDO output back on. Circuit 1 of the MCP1726 1A LDO Evaluation Board evaluates the 3X3 DFN package. When operating at room ambient, this circuit will go into overtemperature shutdown when the power dissipation in the device reaches about

2.1W.

2.4.2 Adjusting the Output Voltage of the LDO

The MCP1726 1A LDO Evaluation Board comes with the output voltage preset to 2.5V. To adjust the output voltage (VOUT1) of circuit 1, the potentiometer, R10, is used. R10 is a top-side adjust potentiometer. If the desired output voltage is higher than 2.5V, raise the input voltage to a level that is higher than your desired output voltage. Use a small flathead screwdriver to adjust the R10 potentiometer and monitor the VOUT1 (TP12) voltage. If your desired output voltage is less than 2.5V, the input voltage of the LDO must be set to a minimum of 2.3V, as this is the minimum input voltage of the LDO. The output voltage of the LDO can then be adjusted using the R10 potentiometer.

The potentiometer will allow you to adjust the output voltage over the full range of 0.8V to 5.0V. If you would like to use fixed resistor values to set the output voltage of the LDO, the potentiometer can be removed and the pads for the potentiometer can be used to solder your fixed value resistors into the circuit.

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Installation and Operation

2.4.3 Power Present and Power Good (PWRGD1) Indication

The MCP1726 1A LDO Evaluation Board has one dual status LED. The dual LED (D2) contains a red LED and a green LED. The red portion of the LED illuminates to indicate that input voltage is present.

The green portion of the LED (D2) is used for power good (PWRGD) indication. During normal operation, if the LDO output is in regulation, the green portion of D2 is illuminated to provide indication that power is good. If the output voltage of the LDO falls below the power good threshold limit (below 92% (typical) of the nominal output voltage regulation value) for any reason (input voltage too low, overtemperature, output short circuit), the green portion of the LED will turn off. The green portion of the LED is driven off of the PWRGD1 output.

The power good output (PWRGD1) can be monitored by connecting to TP11. The power good output of the MCP1726 device is an open-drain output. On the MCP1726 1A LDO Evaluation Board, the PWRGD1 output can be pulled up to either the LDO input or output voltage. This can be done through jumpers JP6 and JP5, respectively . To pull the PWRGD1 output up to the input voltage of the LDO, populate jumper JP6 (place one of the black shorting tabs on the jumper) and make sure that jumper JP5 is not populated. To pull the PWRGD1 output up to the output voltage, populate jumper JP5 and make sure that jumper JP6 is not populated. Upon shipment, the board is configured to have PWRGD1 pulled up to the input voltage. Because the PWRGD1 output is driving the green portion of the D2 LED, the voltage at the PWRGD1 test point will be clamped to the forward voltage of the LED. If you want to have the PWRGD1 voltage be pulled all the way up to the input or output voltage, remove the D2 LED.

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

DELAY

pin on the device (see datasheet for more details). Circuit 1 of the MCP1726 1A LDO Evaluation Board is populated with a 0.01 µF capacitor (C6) for the C

DELAY

pin capacitor. This

gives a typical delay time of 30 ms.

2.4.5 Input and Output Capacitors

The input and output capacitors (C4 and C5, respectively) for Circuit 1 of the MCP1726 1A LDO Evaluation Board are populated with 10 µF , 6.3V ceramic capacitors. The pads for these devices have been constructed in such a manner that 0805, 1206 and 1210 size surface-mount capacitors can be used. This allows the user to populate the board with capacitors of various values and voltage ratings that mimic their application.

2.4.6 Testing Fixed-Output Voltage Devices

As stated earlier, the MCP1726 1A LDO Evaluation Board is designed to handle either the adjustable or fixed-output voltage version of the device (board comes populated with the adjustable output voltage version). When testing a fixed-output voltage version of the device, jumper JP4 should be populated (use the additional black jumper top that is provided). This will connect pin 7 of U2 to the VOUT1 output (for the fixed-output voltage devices, pins 7 and 8 of the MCP1726 are both V

OUT

) which is necessary for

proper operation.

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MCP1726 Evaluation Board User’s Guide

2.5 TESTING CIRCUIT 2 OF THE MCP1726 1A LDO EVALUATION BOARD

2.5.1 Power Input and Output Connections Powering the MCP1726 1A LDO Evaluation Board

Apply the input voltage to test points TP1 (VIN2) and TP2 (GND). Connect the positive-side of the input source (+) to test point TP1 (VIN2). Connect the negative, or return, side (–) of the input source to the test point TP2 (GND). These two test points are located on the lower-left side of the 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).

When input voltage is applied and is above the input UVLO threshold, the LDO output will turn on automatically. The SHDN2

input has been pulled up to VIN2 which turns the

device on. The LDO output can be turned off by pulling the SHDN2

input (TP3) low

(short SHDN2

to GND).

When input voltage is applied, the red portion of the D1 LED will illuminate. As long as input voltage is present, the red portion of this LED will be on.

Applying the load to the MCP1726 1A LDO Evaluation Board

T o apply a load to VOUT2 of the MCP1726 1A LDO Evaluation Board, the positive-side of the load (+) should be connected to test point TP6 (VOUT2). The negative-side of the load (–) should be connected to test point TP4 (GND).

The maximum output current of the MCP1726 is 1.0A. If the output load exceeds this level, the MCP1726 will go into current limit at 1.7A. If, during the overload condition, the device junction temperature exceeds the overtemperature limit of 150°C, the output of the LDO will turn off and wait for the junction temperature to cool down before turning the LDO output back on. Circuit 2 of the MCP1726 1A LDO Evaluation Board evaluates the SOIC package. When operating at room ambient, this circuit will go into overtemperature shutdown when the power dissipation in the device reaches about

1.3W.

2.5.2 Adjusting the Output Voltage of the LDO

The MCP1726 1A LDO Evaluation Board comes with the output voltage preset to 2.5V. To adjust the output voltage (VOUT2) of circuit 2, the potentiometer (R2) is used. R2 is a top-side adjust potentiometer. If the desired output voltage is higher than 2.5V, raise the input voltage to a level that is higher than your desired output voltage. Use a small flat head screw driver to adjust the R2 potentiometer and monitor the VOUT2 (TP6) voltage. If your desired output voltage is less than 2.5V, the input voltage of the LDO must be set to a minimum of 2.3V, as this is the minimum input voltage of the LDO. The output voltage of the LDO can then be adjusted using the R2 potentio mete r.

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Installation and Operation

2.5.3 Power Present and Power Good (PWRGD2) Indication

The MCP1726 1A LDO Evaluation Board has one dual-status LED. The dual LED (D1) contains a red LED and a green LED. The red portion of the LED illuminates to indicate that input voltage is present.

The green portion of the LED (D1) is used for power good (PWRGD) indication. During normal operation, if the LDO output is in regulation, the green portion of D1 is illuminated to provide indication that power is good. If the output voltage of the LDO falls below the power good threshold limit (below 92% (typical) of the nominal output voltage regulation value) for any reason (input voltage too low, overtemperature, output short circuit), the green portion of the LED will turn off. The green portion of the LED is driven off of the PWRGD2 output.

The power good output (PWRGD2) can be monitored by connecting to TP5. The power good output of the MCP1726 device is an open-drain output. On the MCP1726 1A LDO Evaluation Board, the PWRGD2 output can be pulled up to either the LDO input or output voltage. This can be accomplished through jumpers JP2 and JP3, respectively. To pull the PWRGD2 output up to the input voltage of the LDO, populate jumper JP2 (place one of the black shorting tabs on the jumper) and make sure that jumper JP3 is not populated. To pull the PWRGD2 output up to the output voltage, populate jumper JP3 and make sure that jumper JP2 is not populated. Upon shipment, the board is configured to have PWRGD2 pulled up to the input voltage. Because the PWRGD2 output is driving the green portion of the D1 LED, the voltage at the PWRGD2 test point will be clamped to the forward voltage of the LED. If you want to have the PWRGD2 voltage be pulled all the way up to the input or output voltage, remove the D1 LED.

2.5.4 Power Good Time Delay

DELAY

pin on the device (see data sheet for more details). Circuit 2 of the MCP1726 1A LDO Evaluation Board is populated with a 1000 pF capacitor (C3) for the C

DELAY

pin capacitor. This

gives a typical delay time of 3 ms.

2.5.5 Input and Output Capacitors

The input and output capacitors (C1 and C2, respectively) for Circuit 2 of the MCP1726 1A LDO Evalu ation Board ar e populated wi th 4.7μF , 6.3V ceramic capacitors. The pads for these devices have been constructed in such a manner that 0805, 1206 and 1210 size surface-mount capacitors can be used. This allows the user to populate the board with capacitors of various values and voltage ratings that mimic their application.

2.5.6 Testing Fixed-Output Voltage Devices

As stated earlier, the MCP1726 1A LDO Evaluation Board is designed to handle either the adjustable or fixed-output voltage version of the device (board comes populated with the adjustable output voltage version). When testing a fixed-output voltage version of the device, jumper JP1 should be populated (use the additional black jumper top that is provided). This will connect pin 7 of U1 to the VOUT2 output (for the fixed-output voltage devices, pins 7 and 8 of the MCP1726 are both V

OUT

), which is ne ce ss ar y fo r

proper operation.

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MCP1726 Evaluation Board User’s Guide

NOTES:

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MCP1726 EVALUATION

BOARD USER’S GUIDE

Appendix A. Schematics and Layouts

A.1 INTRODUCTION

This appendix contains the following schematics and layouts for the MCP1726 1A LDO Evaluation Board.

• Board Sc hematic

• Board Outline

• Board – Top Layer

• Board – Bottom Layer

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MCP1726 Evaluation Board User’s Guide

FIGURE A-1: Board Schematic.

MCP1726 LDO Fixed and Adjustable Output Eval Board

MCP1726_SOIC

MCP1726_DFN

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Schematics and Layouts

FIGURE A-2: Board – Outline.

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MCP1726 Evaluation Board User’s Guide

FIGURE A-3: Board – Top Layer.

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Schematics and Layouts

FIGURE A-4: Board – Bottom Layer.

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MCP1726 Evaluation Board User’s Guide

NOTES:

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MCP1726 EVALUATION

BOARD USER’S GUIDE

Appendix B. Bill-Of-Materials (BOM)

TABLE B-1: BILL-OF-MATERIALS (BOM)

Qty Reference De scription Manufacturer Part Number

4 Jumper Shorting Posts Sullens STC02SYAN 2 C1, C2 CAP 4.7UF 6.3V CERAMIC X5R 0805 Panasonic

Corp. ECJ-2FB0J475M 1 C3 CAP 1000PF 50V CERAMIC 0603 SMD Panasonic Corp. ECU-V1H102KBV 2 C4, C5 CAP 10UF 6.3V CERAMIC X5R 0805 Panasonic Corp. ECJ-2FB0J106M 1 C6 CAP 10000PF 50V CERAMIC 0603 SMD Kemet

C0603C103K5RACTU

2 D1, D2 LED Dual Green/Red Clear SOT-23 Lumex

Opto/Components

SSL-LX151GC-RP-TR

6 JP1, JP2, JP3,

JP4, JP5, JP6

Connector Header 2POS .100 VERT TIN Molex

/Waldom

22-03-2021

2 R1, R9 RES 10.0K Ohm 1/16W 1% 0603 SMD Panasonic ERJ-3EKF1002V 2 R2, R10 TRIMPOT 100K Ohm 4mm Top Adj SMD Bourns

3214W-1-104E 4 R3, R5, R6, R8 RES 806 Ohm 1/16W 1% 0603 SMD Panasonic ERJ-3EKF8060V 2 R4, R7 RES 499 Ohm 1/16W 1% 0603 SMD Panasonic ERJ-3EKF4990V

12 TP1, TP2, TP3,

TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12

SMT Test Point/Connector Keystone

Electronics

5016

1 U1 1A Low Quiescent Current LDO, Adjust-

able Output, 8-Pin SOIC Package

Microchip Techonology Inc.

MCP1726-ADJE/SN

1 U2 1A Low Quiescent Current LDO, Adjust-

able Output, 3X3 DFN Package

Microchip Techonology Inc.

MCP1726-ADJE/MF

Page 24

AMERICAS

Corporate Office

2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com

Atlanta

Alpharetta, GA Tel: 770-640-0034 Fax: 770-640-0307

Boston

Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088

Chicago

Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075

Dallas

Addison, TX Tel: 972-818-7423 Fax: 972-818-2924

Detroit

Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260

Kokomo

Kokomo, IN 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

ASIA/PACIFIC

Australia - Sydney

Tel: 61-2-9868-6733 Fax: 61-2-9868-6755

China - Beijing

Tel: 86-10-8528-2100 Fax: 86-10-8528-2104

China - Chengdu

Tel: 86-28-8676-6200 Fax: 86-28-8676-6599

China - Fuzhou

Tel: 86-591-8750-3506 Fax: 86-591-8750-3521

China - Hong Kong SAR

Tel: 852-2401-1200 Fax: 852-2401-3431

China - Shanghai

Tel: 86-21-5407-5533 Fax: 86-21-5407-5066

China - Shenyang

Tel: 86-24-2334-2829 Fax: 86-24-2334-2393

China - Shenzhen

Tel: 86-755-8203-2660 Fax: 86-755-8203-1760

China - Shunde

Tel: 86-757-2839-5507 Fax: 86-757-2839-5571

China - Qingdao

Tel: 86-532-502-7355 Fax: 86-532-502-7205

ASIA/PACIFIC

India - Bangalore

Tel: 91-80-2229-0061 Fax: 91-80-2229-0062

India - New Delhi

Tel: 91-11-5160-8631 Fax: 91-11-5160-8632

Japan - Kanagawa

Tel: 81-45-471- 6166 Fax: 81-45-471-6122

Korea - Seoul

Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934

Singapore

Tel: 65-6334-8870 Fax: 65-6334-8850

Taiwan - Kaohsiung

Tel: 886-7-536-4818 Fax: 886-7-536-4803

Taiwan - Taipei

Tel: 886-2-2500-6610 Fax: 886-2-2508-0102

Taiwan - Hsinchu

Tel: 886-3-572-9526 Fax: 886-3-572-6459

EUROPE

Austria - Weis

Tel: 43-7242-2244-399 Fax: 43-7242-2244-393

Denmark - Ballerup

Tel: 45-4450-2828 Fax: 45-4485-2829

France - Massy

Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79

Germany - Ismaning

Tel: 49-89-627-144-0 Fax: 49-89-627-144-44

Italy - Milan

Tel: 39-0331-742611 Fax: 39-0331-466781

Netherlands - Drunen

Tel: 31-416-690399 Fax: 31-416-690340

England - Berkshire

Tel: 44-118-921-5869 Fax: 44-118-921-5820

WORLDWIDE SALES AND SERVICE

03/01/05

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 К/С 30101810900000000703

БИК 044030703

Телефон: 8 (812) 309-44-11 (многоканальный)

Факс: 8 (812) 309-44-11

Электронная почта: sales@timechips.ru

Сайт: timechips.ru

Информационное письмо

Компания «ТаймЧипс» - одна из наиболее динамично развивающихся компаний в сфере поставок

электронных компонентов. Мы поставляем широкую номенклатуру электронных компонентов

отечественных и импортных производителей, как напрямую, так и с крупных мировых складов, позволяющих охватить выборочную номенклатуру более 300 брендов, а также специализируемся на поставках дисплеев и является официальным дистрибьютором компании Shenzhen Startek Electronic Technology Co, на территории Российской Федерации.

Наличие собственной логистики позволяет в кротчайшие сроки доставлять товар нашим

клиентам. В нашей компании имеется Конструкторский отдел, где наши специалисты проводят

технические консультации клиентов, квалифицированную поддержку и помощь российским разработчикам. Осуществляем Поставки импортной продукции под контролем ВП МО РФ, на

предприятия Оборонно-промышленного комплекса России. Система менеджмента качества компании соответствует требованиям ГОСТ ISO 9001-2011.

Благодаря нацеленности на результат, мы уверенно занимаем новые позиции на рынке,

заинтересовывая Клиента не только актуальными ценами и гибким подходом, но и постоянным

вниманием.

Миссия – обеспечение долгосрочного и взаимовыгодного партнерства с клиентами. Наша цель – Обеспечение клиентам самого широкого ассортимента электронных компонентов и

бесперебойности поставок.

Мы - это развитие! Мы задаем темп! Мы разные, но вместе! Мы работаем для вас!

Так же имеем прямые поставки от производителей:

TAI-SAW Пав-компоненты (www.taisaw.com)

TRANSCOM СВЧ-компоненты (www.transcominc.com.tw) Mini Circuits ВЧ-СВЧ-компоненты (minicircuits.com) SAMTEC- разъемы (www.samtec.com) 4Star Разъемы РЧ (Даташиты по продукции 4Star, которые Вы сможете загрузить по этой ссылке: https://yadi.sk/i/tPjnmGGrpmbYj) ULNION Преобразователи напряжения (converterdc.com/)

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;  Гибкие цены.

Модули, микросхемы, пассивные компоненты, Xilinx (ХС), Altera (EP,EPF, EPM) и силовая электроника – это наши ведущие позиции, на поставку которых мы гарантированно дадим Вам самые

выгодные предложения!

В структуру компании так же входит конструкторский отдел, который помогает разработчикам и конструкторам в решении следующих задач:

 Оценка стоимости проекта по компонентам;

 Подбор оптимального решения при выборе компонента;

 Подбор аналогов;  Техническая поддержка;  Консультации у производителей;  Поставка прототипов;

С Уважением, Чернов Павел. Руководитель отдела продаж ООО "ТАЙМЧИПС" Официальный дистрибьютор Shenzhen Startek Electronic Technology

Co.,Ltd в России (USB Display Modules , LED DIsplays, Serial Modules).

http://www.timechips.ru/ http://lcd-timechips.ru/

Телефон: +7 (812) 309-44-11 доб. 141 Факс: +7 (812) 309-44-11 доб. 152 Моб. Тел. +7 (905) 232-40-65

Skype: time.chips5 Электронная почта: manager1@timechips.ru