51983a - MCP16301 300mA D2PAK User's Guide
Contents
1. for input and output allowing the demo board to be connected directly to a system 2011 Microchip Technology Inc DS51983A page 11 MCP16301 300 mA D PAK Demo Board User s Guide 2 2 GETTING STARTED The MCP16301 300 mA D PAK Demo Board is fully assembled and tested to evaluate and demonstrate the MCP 16301 capability 2 2 1 Power Input and Output Connection 2 2 1 1 POWERING THE MCP16301 300 MA D PAK DEMO BOARD The MCP16301 300 mA D PAK Demo Board is fully assembled tested and ready for evaluation Apply positive input voltage to the Vin terminal and the corresponding return to the GND terminal The maximum input voltage should not exceed 26V An electronic load or resistive load can be used for evaluation or the intended system load can be connected The electronic loads attempt to sink current at OV during startup A resistive load or constant resistance is recommended for startup evaluation Connect the positive voltage terminal of the load to the Vour terminal on the demo board and connect the negative or return side of the load to the GND terminal 2 2 1 2 BOARD TESTING To test the board follow the next steps 1 Apply the input voltage 2 An internal pull up resistor is connected from Vin to the EN input of the MCP16301 Once the input voltage is greater than 3 5V the device begins to switch Apply greater than 4V supply to the input for proper operation A minimum load is reguired to regulate the output to 3 3V For2. D PAK Demo Board User s Guide DS51983A page 4 2011 Microchip Technology Inc MCP16301 300 mA D PAK MICROCHIP DEMO 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 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 INTRODUCTION This chapter contains general information that will be useful to know before using the MCP16301 300 mA D PAK Demo 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 MCP16301 300 mA D PAK Demo Board as a development tool to emulate and debug firmware on
3. 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 www microchip com support DOCUMENT REVISION HISTORY Revision A May 2011 Initial Release of this Document S SS N N N zT TG 2011 Microchip Technology Inc DS51983A page 7 MCP16301 300 mA D
4. a target board The manual layout is as follows Chapter 1 Product Overview Important information about the MCP16301 300 mA D PAK Demo Board Chapter 2 Installation and Operation Includes instructions on how to get started with MCP16301 300 mA D PAK Demo Board and a description of the user s guide Appendix A Schematics and Layouts Shows the schematic and layout diagrams for the MCP16301 300 mA D PAK Demo Board Appendix B Bill of Materials BOM Lists the parts used to build the MCP16301 300 mA D PAK Demo Board 2011 Microchip Technology Inc DS51983A page 5 MCP16301 300 mA D PAK Demo 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 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 Save project before build dialog Underlined italic text with A menu path File gt Save right angle bracket Bold characters A dialog button Click OK A tab Click the Power tab N Rnnnn A number in verilog format 4 b0010 2 hF1 where N is the total number of digits R is the radix and n is a digi
5. minimum load reguirements light load conditions detailed information is provided in the data sheet 3 The measured output voltage should be 3 3V typical Adjusting the input voltage and load should not cause the output to vary more than a few mV over the oper ating range of the converter 2 2 2 How the MCP16301 300 mA D PAK Demo Board Boost Strap Operates The MCP16301 integrates a low resistance N Channel MOSFET A high side or floating supply is needed to drive the gate of the N Channel MOSFET above the input voltage to turn iton The demo board uses the output voltage 3 3V to charge the boost cap while inductor current flows clamping the SW node to a diode drop below ground Prior to start up there is no inductor current so an internal pre charge circuit charges the boost cap up to a minimum threshold Once charged the N Channel can be turned on ramping current into the inductor The worst case operating conditions for charging the boost capacitor occur at minimum Vin and no load At minimum Vin 4V there is not enough head room to pre charge the boost cap to a high value At no load the converter is operating at a minimum or very low duty cycle putting a small amount of current into the inductor When the switch turns off the inductor current decays very quickly resulting in a small time to recharge the boost capacitor DS51983A page 12 2011 Microchip Technology Inc AN MCP16301 300 mA D PAK MICROCHIP DEMO BOARD USER
6. s quality system for the design and manufacture of development systems is ISO 9001 2000 certified DS51983A page 2 2011 Microchip Technology Inc MCP16301 300 mA D PAK MICROCHIP DEMO BOARD USER S GUIDE Table of Contents Pr face e etes 5 Introduction ee Me M MER 5 Documenk avoli ART 5 Conventions Used in this Guide ss 6 Recommended Reading men 7 The Microchip Web Site a ee ee ee 7 CUSIOImsr SUDBOLE Jasenn E Ba ta n eod t Ne te 7 Document Revision History iir ee 7 Chapter 1 Product Overview 1 41 Introductions ina O P The ni 9 1 2 MCP16301 Short Overview ae 9 1 3 What is the MCP16301 300 mA D PAK Demo Board eee 10 1 4 What Does the MCP16301 300 mA D PAK Demo Board Kit Contain 10 Chapter 2 Installation and Operation 2 1 INMOAUCTON sie stilo II tire Gasta he i Said or ud ts 11 2 2 Getting Started e LEE 12 Appendix A Schematics and Layouts AA lntroduoltionh sauna ea res 13 A 2 Board Schematic ra nennen ee 14 A 3 Board Top Silk and Pads nee tene e tera teh or een 15 A 4 Board Top Copper Layer no on 15 A 5 Board Bottom Copper Layer ccccccceeeesscceeeesseeeeeeeseeeeeeeeeeaeeeeeeneeeenneas 16 Appendix B Bill of Materials BOM Worldwide Sales and Service uuuuuuunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 18 2011 Microchip Technology Inc DS51983A page 3 MCP16301 300 mA
7. 0J104M 1 D1 DIODE SCHOTTKY 30V 1A Diodes Incorporated PD3S130HDICT ND PWRDI 323 1 D2 DIODE SWITCH 75V 200mW Diodes Incorporated 1N4448WS 7 F SOD 323 1 L1 Sheilded Power Inductor 15 uH Coilcraft Inc LPS3015 153MLB 1 PCB RoHS Compliant Bare PCB MCP16301 104 00360 D PAK Board 1 R1 RES 1 00M OHM 1 10W 1 0402 SMD Panasonic ECG ERJ 2RKF1004X 1 R2 RES 31 6K OHM 1 10W 196 0402 SMD Panasonic ECG ERJ 2RKF3162X 1 R3 RES 10 0K OHM 1 10W 196 0402 SMD Panasonic ECG ERJ 2RKF1002X 4 TP1 TP2 PC TEST POINT TIN SMD Harwin Inc S1751 46R TP3 TP4 1 U1 MCP16301 High Input Buck Converter Microchip Technology Inc MCP16301T I CHY SOT 23 Note 1 The components listed in this Bill of Materials are representative of the PCB assembly The released BOM used in manufacturing uses all RoHS compliant components 2011 Microchip Technology Inc DS51983A page 17 MICROCHIP Worldwide Sales and Service AMERICAS Corporate Office 2355 West Chandler Blvd Chandler AZ 85224 6199 Tel 480 792 7200 Fax 480 792 7277 Technical Support http www microchip com support Web Address www microchip com Atlanta Duluth GA Tel 678 957 9614 Fax 678 957 1455 Boston Westborough MA Tel 774 760 0087 Fax 774 760 0088 Chicago Itasca IL Tel 630 285 0071 Fax 630 285 0075 Cleveland Independence OH Tel 216 447 0464 Fax 216 447 0643 Dallas Addison TX Tel 972 818 7423 Fax 972 818 2924 Detroit Farmin
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9. Ihr Vertriebspartner HY LINE POWER COMPONENTS Inselkammerstra e 10 D 82008 Unterhaching Tel 49 0 89 614503 10 Fax 49 0 89 614503 20 E Mail power hy line de URL www hy line de MICROCHIP MCP16301 300 mA D PAK Demo Board User s Guide 2011 Microchip Technology Inc DS51983A 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 reguire 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 Micr
10. NTS E Mail power hy line de URL www hy line de 05 02 11 DS51983A page 18 2011 Microchip Technology Inc
11. PAK Demo Board User s Guide NOTES DS51983A page 8 2011 Microchip Technology Inc MCP16301 300 mA D PAK MICROCHIP DEMO BOARD USER S GUIDE Chapter 1 Product Overview 1 1 INTRODUCTION This chapter provides an overview of the MCP16301 300 mA D PAK Demo Board and covers the following topics MCP16301 Short Overview What is the MCP16301 300 mA D PAK Demo Board What Does the MCP16301 300 mA D PAK Demo Board Kit Contain 1 2 MCP16301 SHORT OVERVIEW The MCP16301 device is a highly integrated high efficiency fixed frequency step down DC DC converter in a popular 6 pin SOT 23 package that operates from input voltage sources up to 30V The integrated features include a high side switch fixed frequency peak current mode control internal compensation peak current limit and overtemperature protection Minimal external components are needed to develop a high efficiency power supply operating from a high voltage input High converter efficiency is achieved by integrating the current limited low resistance high speed N Channel MOSFET and associated drive circuitry High switching frequency minimizes the size of the external filtering components resulting in a small solution size The MCP16301 300 mA D PAK Demo Board can supply 300 mA of continuous cur rent while regulating the output voltage from 2 0V to 15V An integrated high perfor mance peak current mode architecture keeps the output voltage tightly regulate
12. S GUIDE Appendix A Schematics and Layouts A 1 INTRODUCTION This appendix contains the following schematics and layouts for the MCP16301 300 mA D PAK Demo Board Board Schematic Board Top Silk and Pads Board Top Copper Layer Board Bottom Copper Layer 2011 Microchip Technology Inc DS51983A page 13 MCP16301 300 mA D PAK Demo Board User s Guide BOARD SCHEMATIC A 2 FOND 1nOA GLOESd1 c dOS da ag AND MS NA 150089 UIA EG LOS LOE9LJOW LA NIA 2011 Microchip Technology Inc DS51983A page 14 Schematics and Layouts A 3 BOARD TOP SILK AND PADS 102 00560 MICROCHIP MCP16301 High Voltage Buck Converter D2PAK Board L ia A4 BOARD TOP COPPER LAYER m 2011 Microchip Technology Inc DS51983A page 15 MCP16301 300 mA D PAK Demo Board User s Guide A 5 BOARD BOTTOM COPPER LAYER G8686 S8 DS51983A page 16 2011 Microchip Technology Inc MICROCHIP MCP16301 300 mA D PAK DEMO BOARD USER S GUIDE Appendix B Bill of Materials BOM TABLE B 1 BILL OF MATERIALS BOM Qty Reference Description Manufacturer Part Number 1 C1 CAP CER 2 2 uF 50V X5R 0805 TDK Corporation C2012X5R1H225K 1 C2 CAP CER 10uF 6 3V X5R 0603 Taiyo Yuden JMK107BJ106MA T 1 C3 CAP CER 0 10uF 6 3V X5R 0402 TDK Corporation C1005X5R
13. d even during input voltage steps and output current transient conditions that are common in power systems For this evaluation board the external components are sized such that they can fit into a smaller space than a D PAK linear regulator The external compo nents namely the Schottky diode and the inductor limit the maximum output current for this application to less than 300 mA 1N4448 K lt CBOOST L VouT Vin BOOST 100 nF 15 uH 3 3V 150 mA 4 0V to 26V SW e Ye e O o e VIN L 30V L Cour C ZA Schottky 22 uF T Diode 2 2 uF EN z 31 2 KQ VFB GND 10KQ FIGURE 1 1 300 mA Typical MCP16301 Step Down Application 2011 Microchip Technology Inc DS51983A page 9 MCP16301 300 mA D PAK Demo Board User s Guide 13 WHATIS THE MCP16301 300 MA D PAK DEMO BOARD The MCP16301 300 mA D PAK Demo Board is designed to operate from a 4V to 26V input and regulate the output to 3 3V while delivering 300 mA of load current Test points for input power and load are provided to demonstrate the capability of the demo board over the entire range The board was designed using small surface mount components to show the small board area necessary for a high input voltage 300 mA design that fits into less board area than the popular D PAK commonly used for linear regulators 1 4 WHAT DOES THE MCP16301 300 MA D PAK DEMO BOARD KIT CONTAIN The MCP16301 300 mA D PAK Demo B
14. gton Hills MI Tel 248 538 2250 Fax 248 538 2260 Indianapolis Noblesville IN Tel 317 773 8323 Fax 317 773 5453 Los Angeles Mission Viejo CA Tel 949 462 9523 Fax 949 462 9608 Santa Clara Santa Clara CA Tel 408 961 6444 Fax 408 961 6445 Toronto Mississauga Ontario Canada Tel 905 673 0699 Fax 905 673 6509 ASIA PACIFIC Asia Pacific Office Suites 3707 14 37th Floor Tower 6 The Gateway Harbour City Kowloon Hong Kong Tel 852 2401 1200 Fax 852 2401 3431 Australia Sydney Tel 61 2 9868 6733 Fax 61 2 9868 6755 China Beijing Tel 86 10 8569 7000 Fax 86 10 8528 2104 China Chengdu Tel 86 28 8665 5511 Fax 86 28 8665 7889 China Chongging Tel 86 23 8980 9588 Fax 86 23 8980 9500 China Hangzhou Tel 86 571 2819 3180 Fax 86 571 2819 3189 China Hong Kong SAR Tel 852 2401 1200 Fax 852 2401 3431 China Nanjing Tel 86 25 8473 2460 Fax 86 25 8473 2470 China Gingdao Tel 86 532 8502 7355 Fax 86 532 8502 7205 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 Wuhan Tel 86 27 5980 5300 Fax 86 27 5980 5118 China Xian Tel 86 29 8833 7252 Fax 86 29 8833 7256 China Xiamen Tel 86 592 2388138 Fax 86 592 2388130 China Zhuhai Tel 86 756 3210040 Fax 86 756 3210049 ASIA PACIFIC India Bangalore Tel 91
15. oard kit includes MCP16301 300 mA D PAK Demo Board 102 00360 Important Information Sheet Hac H YN cz E DS51983A page 10 2011 Microchip Technology Inc MCP16301 300 mA D PAK MICROCHIP DEMO BOARD USER S GUIDE Chapter 2 Installation and Operation 2 1 INTRODUCTION 2 1 1 MCP16301 Features The MCP16301 device has been developed to provide high input voltage applications with a precise low voltage regulated rail while operating at high efficiency The key features of the MCP16301 include Up to 96 Typical Efficiency Input Voltage Range 4 0V to 30V Output Voltage Range 2 0V to 15V 2 Output Voltage Accuracy Integrated N Channel Buck Switch 460 mQ 600 mA Output Current 500 kHz Fixed Freguency Adjustable Output Voltage Low Device Shutdown Current Peak Current Mode Control Internal Compensation Stable with Ceramic Capacitors Internal Soft Start Cycle by Cycle Peak Current Limit Under Voltage Lockout UVLO 3 5V Overtemperature Protection Available Package SOT 23 6 A high performance peak current mode control system is used to deliver fast response to sudden line and load changes 2 1 2 MCP16301 300 mA D2PAK Demo Board Features The MCP16301 300 mA D PAK Demo Board is developed to demonstrate how the MCP16301 operates over a wide input voltage and load range Test points are provided
16. ochip s code protection feature may be a violation of the Digital Millennium Copyright Act lf 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 lt 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 Microchip devices in life support and or safety applications is entirely at the buyer s risk and the buyer agrees to defend indemnify and hold harmless Microchip from any and all damages claims Suits or expenses resulting from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectual property rights OUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV ISO TS 16949 2002 Trademarks The Microchip name and logo the Microchip logo dsPIC KEELOQ KEELOQ logo MPLAB PIC PICmicro PICSTART PIC logo rfPIC and UNI O are registered trademarks of Microchip Technology Incorporated in the U S A and
17. other countries FilterLab Hampshire HI TECH C Linear Active Thermistor MXDEV MXLAB SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U S A Analog for the Digital Age Application Maestro CodeGuard dsPICDEM dsPICDEM net dsPICworks dsSPEAK ECAN ECONOMONITOR FanSense HI TIDE In Circuit Serial Programming ICSP Mindi MIWi MPASM MPLAB Certified logo MPLIB MPLINK mTouch Omniscient Code Generation PICC PICC 18 PICDEM PICDEM net PICkit PICtail REAL ICE rfLAB Select Mode Total Endurance TSHARC UniWinDriver WiperLock and ZENA 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 2011 Microchip Technology Incorporated Printed in the U S A All Rights Reserved 63 Printed on recycled paper ISBN 978 1 61341 179 7 Microchip received ISO TS 16949 2002 certification for its worldwide headquarters design and wafer fabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in California and India The Company s quality system processes and procedures are for its PIC MCUs and dsPIC DSCs KEELOQ code hopping devices Serial EEPROMs microperipherals nonvolatile memory and analog products In addition Microchip
18. t Text in angle brackets gt 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 OxFF 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 Choice of mutually exclusive errorlevel 011 character arguments an OR selection Ellipses Replaces repeated text var name var name Represents code supplied by void main void user DS51983A page 6 2011 Microchip Technology Inc Preface RECOMMENDED READING This user s guide describes how to use the MCP16301 300 mA D PAK Demo Board Other useful documents are listed below The following Microchip documents are avail able and recommended as supplemental reference resources MCP16301 Data Sheet High Voltage Input Integrated Switch Step Down Regulator DS25004 AN1385 Application Note Dynamic Analysis of the MCP16301 Switch mode Power Converter Utilizing the MCP16301 Design Analyzer DS01385 MCP16301 User s Guide MCP16301 600 mA Demo Board User s Guide DS51978 THE MICROCHIP WEB SITE Microchip provides online support via our web site at www microchip com This web site is used as
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