Microchip Technology MCP1602 Bedienungsanleitung

MCP1602

Evaluation Board

User’s Guide

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MCP1602 EVALUATION BOARD

USER’S GUIDE

Table of Contents

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

Introduction............................................................................................................1

Document Layout..................................................................................................1

Conventions Used in this Guide............................................................................2

Recommended Reading........................................................................................2

The Microchip Web Site........................................................................................3

Customer Support.................................................................................................3

Document Revision History...................................................................................3

Chapter 1. Product Overview

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

1.2 What is the MCP1602 Evaluation Board? ......................................................6

1.3 What the MCP1602 Evaluation Board kit includes .........................................6

Chapter 2. Installation and Operation

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

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

2.3 Getting Started ...............................................................................................8

Appendix A. Schematic and Layouts

A.1 Introduction ..................................................................................................11

A.2 Board – Schematic .......................................................................................12

A.3 Board – Top Layer .......................................................................................13

A.4 Board – Top Metal Layer .............................................................................14

A.5 Board – Bottom Layer .................................................................................15

Appendix B. Bill Of Materials (BOM)

Worldwide Sales and Service ....................................................................................18

MCP1602 Evaluation Board User’s Guide

NOTES:

MCP1602 EVALUATION BOARD

USER’S GUIDE

Preface

INTRODUCTION

This chapter contains general information that will be useful to know before using the

MCP1602 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 MCP1602 Evaluation Board as a

development tool. The manual layout is as follows:

•Chapter 1. “Product Overview” – Important information about the MCP1602

Evaluation Board.

•Chapter 2. “Installation and Operation” – Includes instructions on how to get

started with this user’s guide and a description of the user’s guide.

•Appendix A. “Schematic and Layouts” – Shows the schematic and layout

diagrams for the MCP1602 Evaluation Board.

•Appendix B. “Bill Of Materials (BOM)” – Lists the parts used to build the

MCP1602 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.

For the most up-to-date information on development tools, see the MPLAB®IDE on-line help.

Select the Help menu, and then Topics to open a list of available on-line help files.

MCP1602 Evaluation Board User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

RECOMMENDED READING

This user's guide describes how to use MCP1602 Evaluation Board. Other useful

documents are listed below. The following Microchip documents are available and

recommended as supplemental reference resources.

MCP1602 Data Sheet, “2.0 MHz, 500 mA Synchronous Buck Regulator with

Power-Good”, DS22061A

This data sheet provides detailed information regarding the MCP1602 product family.

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB®IDE User’s Guide

Emphasized text ...is the only compiler...

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

N‘Rnnnn A number in verilog format,

where N is the total number of

digits, R is the radix and n is a

digit.

4‘b0010, 2‘hF1

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

Courier New font:

Plain Courier New 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 New 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 exclusive

arguments; an OR selection errorlevel {0|1}

Ellipses... Replaces repeated text var_name [,

var_name...]

Represents code supplied by

user void main (void)

{ ...

}

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

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

DOCUMENT REVISION HISTORY

Revision A (November 2007)

• Initial Release of this Document.

MCP1602 Evaluation Board User’s Guide

NOTES:

MCP1602 EVALUATION BOARD

USER’S GUIDE

Chapter 1. Product Overview

1.1 INTRODUCTION

The MCP1602 Evaluation Board demonstrates the features and capabilities of

Microchip’s MCP1602 Evaluation Board 500 mA PFM/PWM Synchronous Buck

Regulator. TheMCP1602 isastep-down(Buck)switchingregulatorwithaPower-Good

monitor to provide a highly integrated solution for systems that require supply voltage

between 0.8V to 4.5V. The MCP1602 requires input voltage range from 2.7V to 5.5V.

The MCP1602 Evaluation Board includes a MCP1602 circuit that has a Shutdown fea-

ture and a 4-position DipSwitch to select between different output voltages. MCP1602

Evaluation Board is available in 0.8V, 1.2V, 1.8V, 2.5V and 3.3V. Additional test points

are available on the MCP1602 Evaluation Board for reviewing the performances and

features of MCP1602 Evaluation Board.

This chapter covers the following topics:

• What is the MCP1602 Evaluation Board?

• What the MCP1602 Evaluation Board Kit includes

FIGURE 1-1: MCP1602 Typical Applications With Adjustable Output Voltage.

MCP1602 Evaluation Board User’s Guide

1.2 WHAT IS THE MCP1602 EVALUATION BOARD?

The MCP1602 Evaluation Board demonstrates the use of PFM/PWM Synchronous

Buck Controller that regulates output voltages from 0.8V to 4.5V with Adjustable

version or 1.2V, 1.5V, 1.8V, 2.5V and 3.3V with Fixed-Output version.

The MCP1602 Evaluation Board Evaluation Board is setup to evaluate simple

DC-to-DC conversion. This board utilizes Microchip's MCP1602 Evaluation Board

(PFM/PWM Synchronous Buck Regulator) that effectively steps down from VIN to

regulated VOUT. The Power Goodfunction can be observed viathe output signal on the

PG pin. The MCP1602 on the MCP1602 Evaluation Board is enabled and can be

turned off by pulling the SHDN pin low.

The MCP1602 Evaluation Board is designed to observe the performance and features

on the circuit via multiple test points. Users can also discover the compact size of the

layout in addition to the device itself. The circuit can also be implemented into suitable

applications without extra work.

1.3 WHAT THE MCP1602 EVALUATION BOARD KIT INCLUDES

This MCP1602 Evaluation Board Kit includes:

• MCP1602 Evaluation Board, 102-00120

• MCP1602 Device with adjustable output voltage (Installed)

• Analog and Interface Products Demonstration Boards CD-ROM (DS21912)

- MCP1602 Evaluation Board User’s Guide, DS51691

- MCP1602 Evaluation Board Data Sheet, “2..0 MHz, 500 mA Synchronous

Buck Regulator with Power-Good”, DS22061

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