DN2470 Based Linear Regulator
Input Voltage Range Extender
Evaluation Board User’s Guide
2016 Microchip Technology Inc. DS50002464A
Note the following details of the code protection feature on Microchip devices:
YSTEM
CERTIFIED BY DNV
== ISO/TS 16949 ==
• Microchip products meet the specification contained in their particular Microchip Data Sheet.
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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.
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and may be superseded by updates.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.
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®
MCUs and dsPIC® DSCs, KEELOQ
®
code hopping
QUALITY MANAGEMENT S
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EELOQ logo, Kleer, LANCheck, LINK MD, MediaLB, MOST,
K
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Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut,
BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, Dynamic Average Matching, DAM, ECAN,
EtherGREEN, In-Circuit Serial Programming, ICSP, Inter-Chip
Connectivity, JitterBlocker, KleerNet, KleerNet logo, MiWi,
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MPLINK, MultiTRAK, NetDetach, Omniscient Code
Generation, PICDEM, PICDEM.net, PICkit, PICtail,
PureSilicon, RightTouch logo, REAL ICE, Ripple Blocker,
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All other trademarks mentioned herein are property of their
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© 2016, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
ISBN: 978-1-5224-0358-6
EELOQ,
DS50002464A-page 2 2016 Microchip Technology Inc.
Object of Declaration: DN2470 Based Linear Regulator Input Voltage Range Extender
Evaluation Board
2016 Microchip Technology Inc. DS50002464A-page 3
NOTES:
DS50002464A-page 4 2016 Microchip Technology Inc.
DN2470 BASED LINEAR REGULATOR
INPUT VOLTAGE RANGE EXTENDER
EVALUATION BOARD USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 6
Introduction............................................................................................................ 6
Document Layout .................................................................................................. 6
Conventions Used in this Guide ............................................................................ 7
Recommended Reading........................................................................................ 8
The Microchip Web Site ........................................................................................ 8
Customer Support ................................................................................................. 8
Document Revision History ................................................................................... 8
Chapter 1. Product Overview
1.1 Introduction ..................................................................................................... 9
1.2 DN2470 Device Overview .............................................................................. 9
1.3 What is the DN2470 Based Linear Regulator Input Voltage
Range Extender Evaluation Board? ......................................................... 9
1.4 What the DN2470 Based Linear Regulator Input Voltage
Range Extender Evaluation Board Kit Contains ..................................... 10
Chapter 2. Installation and Operation
2.1 Getting Started ............................................................................................. 11
2.2 Setup and Operation Procedure ................................................................... 11
Appendix A. Schematic and Layouts
A.1 Introduction .................................................................................................. 13
A.2 Board – Schematic ....................................................................................... 14
A.3 Board – Top Silk .......................................................................................... 15
A.4 Board – Top Copper and Silk ....................................................................... 16
A.5 Board – Top Copper .................................................................................... 17
A.6 Board – Bottom Copper ............................................................................... 18
Appendix B. Bill of Materials (BOM)........................................................................... 19
Appendix C. DN2470 Characterization Plots
C.1 Heat Sink ..................................................................................................... 21
C.2 Pad Temperature ......................................................................................... 21
C.3 Overtemperature Protection Using PTC ...................................................... 22
Worldwide Sales and Service .................................................................................... 24
2016 Microchip Technology Inc. DS50002464A-page 5
DN2470 Based Linear Regulator Input Voltage Range Extender Evaluation Board User’s Guide
NOTES:
DS50002464A-page 6 2016 Microchip Technology Inc.
DN2470 BASED LINEAR REGULATOR
INPUT VOLTAGE RANGE EXTENDER
EVALUATION BOARD USER’S GUIDE
Preface
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
“DSXXXXXXXXA”, where “XXXXXXXX” 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
Select the Help menu, and then Topics to open a list of available online help files.
®
IDE online help.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
DN2470 Based Linear Regulator Input Voltage Range Extender Evaluation Board
User’s Guide. 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 DN2470 Based Linear Regulator Input
Voltage Range Extender Evaluation Board User’s Guide as a development tool.
• Chapter 1. “Product Overview” – Important information about the DN2470
Based Linear Regulator Input Voltage Range Extender Evaluation Board User’s
Guide.
• Chapter 2. “Installation and Operation” – This chapter includes a detailed
description of each function of the demonstration board and instructions on how to
use the board.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the DN2470 Based Linear Regulator Input Voltage Range Extender
Evaluation Board User’s Guide.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
DN2470 Based Linear Regulator Input Voltage Range Extender Evaluation Board
User’s Guide.
• Appendix C. “DN2470 Characterization Plots” – Describes the various plots
and waveforms for the DN2470 Based Linear Regulator Input Voltage Range
Extender Evaluation Board User’s Guide.
2016 Microchip Technology Inc. DS50002464A-page 7
DN2470 Based Linear Regulator Input Voltage Range Extender Evaluation Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description Represents Examples
Arial font:
Italic characters Referenced books MPLAB
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
Underlined, italic text with
right angle bracket
Bold characters A dialog button Click OK
N‘Rnnnn A number in verilog format,
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>
Courier New font:
Plain Courier New Sample source code #define START
Italic Courier New A variable argument file.o, where file can be
Square brackets [ ] Optional arguments mcc18 [options] file
Curly brackets and pipe
character: { | }
Ellipses... Replaces repeated text var_name [,
A menu path File>Save
A tab Click the Power tab
where N is the total number of
digits, R is the radix and n is a
digit.
Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’
Choice of mutually exclusive
arguments; an OR selection
Represents code supplied by
user
“Save project before build”
4‘b0010, 2‘hF1
any valid filename
[options]
errorlevel {0|1}
var_name...]
void main (void)
{ ...
}
®
IDE User’s Guide
DS50002464A-page 8 2016 Microchip Technology Inc.
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