MCP16301 High Voltage Buck Converter 600 mA Demo
Contents
1.2. 1N4148 eX _ Cboost V 100 nF eh out IN BOOST H 3 3V 600 mA 4 5V To 30V sw 9 e VIN ja 40V Cour C N SCHOTTKY 2 X10 uF IN L I DIODE 10 uF EN 2 KQ VFB GND 10 FIGURE 1 1 Typical MCP 16301 Step Down Application 2011 Microchip Technology Inc DS51978A page 9 MCP16301 600 mA Demo Board User s Guide 1 3 WHAT IS THE MCP16301 600 mA DEMO BOARD The MCP16301 600 mA Demo Board is designed to operate from a 4V to 30V input and regulate the output to 3 3V while delivering 600 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 MCP16301 600 mA Demo Board was designed using small surface mount components to show application size for a high voltage 600 mA design 1 4 MCP16301 600 mA DEMO BOARD KIT CONTENTS This MCP16301 600 mA Demo Board kit includes the following items MCP16301 600 mA Demo Board 102 00352 Important Information Sheet DS51978A page 10 2011 Microchip Technology Inc MCP16301 600 mA DEMO BOARD MICROCHIP USER S GUIDE Chapter 2 Installation and Operation 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 Effi
3. InselkammerstraRe 10 D Tel 49 0 89 614503 10 49 0 89 614503 20 power hy line de y line de MCP16301 High Voltage Buck Converter 600 mA Demo Board User s Guide 2011 Microchip Technology Inc DS51978A 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 violation of the Digital Millen
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5. CH VN dl o IONS Hu Hu 6080 5080 3101 1101 5080 YO o eL ea Ze 19550 A A A Hh GL LNOA 15008 20105 LO 9LdON WI Ly NIA 2011 Microchip Technology Inc DS51978A page 14 Schematic and Layouts BOARD TOP SILK AND PADS 102 00552 O R4 R3 R2 MICROCHIP mu MCP16301 High Voltage luck Converter 600 mA Board lg cg ne AA BOARD TOP COPPER AND PADS 2011 Microchip Technology Inc DS51978A page 15 MCP16301 600 mA DEMO BOARD USER S GUIDE 5 BOARD BOTTOM COPPER ScCG8 AST DS51978A page 16 2011 Microchip Technology Inc MCP16301 600 mA DEMO BOARD USER S GUIDE MICROCHIP Appendix B Bill of Materials TABLE B 1 BILL OF MATERIALS BOM Qty Reference Description Manufacturer Part Number 4 BUMP BUMPON Square 0 40 x 0 1 Black 3M SJ 5007 Black 2 C1 C2 CAP 4 7uF 50V CERAMIC X7R 1210 10 Taiyo Yuden UMK325B7475KM T 2 C3 C4 CAP 10uF 6 3V CERAMIC X7R 0805 10 Taiyo Yuden JMK212B7106KG T 1 C5 CAP 0 1uF 16V CERAMIC X7R 0603 10 AVX Corporation 0603YC104KAT2A 1 D1 DIODE SCHOTTKY 40V 1 SMA Diodes Incorporated B140 13 F 1 D2 DIODE SWITCH 75V 200 mW SOD 323 Diodes Incorporated 1N4448WS 7 F 1 L1 MSS6132 15 Shielded Power Inductor Coilcraft MSS613
6. USER S GUIDE NOTES DS51978A page 4 2011 Microchip Technology Inc MCP16301 600 mA DEMO BOARD MICROCHIP 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 600 mA 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 600 mA Demo Board as a devel opment tool to emulate and debug firmware on a target board T
7. page 8 2011 Microchip Technology Inc MCP16301 600 mA DEMO BOARD MICROCHIP USER S GUIDE Chapter 1 Product Overview 1 1 INTRODUCTION This chapter provides an overview of the MCP16301 600 mA Demo Board and covers the following topics MCP16301 Short Overview e What is the MCP16301 600 mA Demo Board MCP16301 600 mA Demo Board Kit Contents 1 2 16301 SHORT OVERVIEW The MCP16301 is a highly integrated high efficiency fixed frequency step down DC DC converter in a popular 6 pin SOT23 package that operates from input voltage sources up to 30V Integrated features include a high side switch fixed frequency peak current mode control internal compensation peak current limit and over temper ature protection Minimal external components are necessary to develop a complete step down DC DC converter power supply High converter efficiency is achieved by integrating the current limited low resistance high speed N Channel MOSFET and associated drive circuitry High switching fre quency minimizes the size of external filtering components resulting in a small solution size The MCP16301 can supply 600 mA of continuous current while regulating the output voltage from 2 0V to 15V An integrated high performance peak current mode architec ture keeps the output voltage tightly regulated even during input voltage steps and output current transient conditions that are common in power systems
8. 2 153ML 1 PCB MCP16301 4V to 30V Vin 3 3V 600 mA lour Microchip Technology Inc 104 00352 Printed Circuit Board 1 R1 RES 1 00M OHM 1 8W 1 0805 SMD Panasonic ECG ERJ 6ENF1004V 1 R2 RES 10 OHM 1 8W 196 0805 SMD Panasonic ECG ERJ 6ENF10ROV 1 R3 RES 31 6K OHM 1 8W 1 0805 SMD Panasonic ECG ERJ 6ENF3162V 1 R4 RES 10 0K OHM 1 8W 1 0805 SMD Panasonic ECG ERJ 6ENF1002V 1 U1 MCP16301 High Input Voltage Buck Microchip Technology Inc MCP16301 Converter SOT23 4 VIN PC TEST POINT TIN SMD Harwin S1751 46R VOUT GND GND 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 DS51978A page 17 MICROCHIP Ihr Vertriebspartner HY LINE POWER COMPONENTS InselkammerstraRe 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 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
9. 6 756 3210040 Fax 86 756 3210049 ASIA PACIFIC India Bangalore Tel 91 80 3090 4444 Fax 91 80 3090 4123 India New Delhi Tel 91 11 4160 8631 Fax 91 11 4160 8632 India Pune Tel 91 20 2566 1512 Fax 91 20 2566 1513 Japan Yokohama Tel 81 45 471 6166 Fax 81 45 471 6122 Korea Daegu Tel 82 53 744 4301 Fax 82 53 744 4302 Korea Seoul Tel 82 2 554 7200 Fax 82 2 558 5932 or 82 2 558 5934 Malaysia Kuala Lumpur Tel 60 3 6201 9857 Fax 60 3 6201 9859 Malaysia Penang Tel 60 4 227 8870 Fax 60 4 227 4068 Philippines Manila Tel 63 2 634 9065 Fax 63 2 634 9069 Singapore Tel 65 6334 8870 Fax 65 6334 8850 Taiwan Hsin Chu Tel 886 3 6578 300 Fax 886 3 6578 370 Taiwan Kaohsiung Tel 886 7 213 7830 Fax 886 7 330 9305 Taiwan Taipei Tel 886 2 2500 6610 Fax 886 2 2508 0102 Thailand Bangkok Tel 66 2 694 1351 Fax 66 2 694 1350 EUROPE Austria Wels Tel 43 7242 2244 39 Fax 43 7242 2244 393 Denmark Copenhagen Tel 45 4450 2828 Fax 45 4485 2829 France Paris Tel 33 1 69 53 63 20 Fax 33 1 69 30 90 79 Germany Munich 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 Spain Madrid Tel 34 91 708 08 90 Fax 34 91 708 08 91 UK Wokingham Tel 44 118 921 5869 Fax 44 118 921 5820 05 02 11 DS51978A page 18 2011 Microchip Technology Inc
10. 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 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 CH Printed on recycled paper ISBN 978 1 61341 153 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 007 code hopping devices Serial EEPROMs microperipherals nonvolatile memory and analog products In addition Microchip s quality system for the design and manufacture of developme
11. ate of the N Channel MOSFET above the input voltage to turn it on 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 startup 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 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 short time to recharge the boost capacitor DS51978A page 12 2011 Microchip Technology Inc AN MCP16301 600 mA DEMO BOARD MICROCHIP USER S GUIDE Appendix A Schematic and Layouts A 1 INTRODUCTION This appendix contains the following schematics and layouts for the MCP16301 600 mA Demo Board Board Schematic Board Top Silk And Pads Board Top Copper And Pads Board Bottom Copper 2011 Microchip Technology Inc DS51978A page 13 MCP16301 600 mA DEMO BOARD USER S GUIDE BOARD SCHEMATIC A 2 cogo v or VIS 5080 10
12. ciency Input Voltage Range 4 0V to 30V Output Voltage Range 2 0V to 15V 296 Output Voltage Accuracy Integrated N Channel Buck Switch 460 600 mA Output Current 500 kHz Fixed Frequency 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 SOT23 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 600 mA Demo Board Features The MCP16301 600 mA Demo Board is developed to demonstrate how the 16301 device operates over a wide input voltage and load range Test points are provided for input and output allowing the demo board to be connected directly to a system A copper via connected to the EN input can be used to turn the MCP16301 on and off turning the device on EN 1 4V when the undervoltage lockout threshold is met VIN 3 5V will enable the device 2011 Microchip Technology Inc DS51978A page 11 MCP16301 600 mA Demo Board User s Guide 2 2 GETTING STARTED The MCP16301 600 mA Demo Board is fully assembled and tested to evaluate and demonstrate the MCP16301 2 2 1 Power Input and Output Connection 2 2 1 1 POWERING THE MCP16301 600 mA DEMO BOARD The MCP16301 600 mA Demo Board is fully ass
13. embled tested and ready to begin evaluation Apply positive input voltage to the Vin terminal and its return to the GND terminal The maximum input voltage should not exceed 30V An electronic load or resistive load can be used for evaluation or the intended system load can be con nected Electronic loads attempt to sink current at OV during startup a resistive load or constant resistance is recommended for startup evaluation Connect the positive volt age terminal of the load to the terminal on the demo board and connect the neg ative 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 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 will begin to switch Apply greater than 4V to the input for proper operation a minimum load is required to regulate the output to 3 3V Detailed information is provided in the MCP16301 data sheet DS25004 for minimum load requirements for light load conditions 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 High Side Drive Boost Circuit Operates The MCP16301 integrates a low resistance N Channel MOSFET A high side or floating supply is needed to drive the g
14. he manual layout is as follows Chapter 1 Product Overview Important information about the MCP16301 600 mA Demo Board Chapter 2 Installation and Operation Includes instructions on how to get started with MCP16301 600 mA Demo Board and a description of the user s guide Appendix A Schematic and Layouts Shows the schematic and layout diagrams for the MCP16301 600 mA Demo Board Appendix B Bill of Materials Lists the parts used to build the MCP16301 600 mA Demo Board 2011 Microchip Technology Inc DS51978A page 5 CONVENTIONS USED IN THIS GUIDE MCP16301 600 mA DEMO BOARD USER S 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 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 lt gt A key on the keyboard P
15. les 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 May 2011 Initial release of this document 2011 Microchip Technology Inc DS51978A page 7 MCP16301 600 mA DEMO BOARD USER S GUIDE NOTES DS51978A
16. nium 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 MICROCHIP MAKES 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 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV ISO TS 16949 2002 Trademarks The Microchip name and logo the Microchip logo dsPIC KEELOQ KEELOQ logo MPLAB PIC PlCmicro PICSTART PIC logo rfPIC and UNI O are registered trademarks of Microchip Technology Incorporated in the U S A and other countries FilterLab Hampshire HI TECH C Linear Active
17. nt systems is ISO 9001 2000 certified DS51978A page 2 2011 Microchip Technology Inc MCP16301 600 mA DEMO BOARD MICROCHIP USER S GUIDE Table of Contents Pr face e 5 Rtl EE 5 beers ART 5 Conventions Used in this Guide ENEE 6 Recommended Be e Le ec 7 The Microchip Web EL 7 SUDBOLE dade 7 Document Bevision HISIOTy iir a Ee Pee ei a eerie sce ceu EE 7 Chapter 1 Product Overview 1 1 o a eer 9 1 2 MCP169301 Short Overview serment eid cnl e 9 1 3 What is the MCP16301 600 mA Demo Board 10 1 4 MCP16301 600 mA Demo Board Kit Contents 10 Chapter 2 Installation and Operation 2 1 Introduction 11 2 2 Getting Started GEET 12 Appendix A Schematic and Layouts AA 13 A 2 Board Schematic oss ridet prn tri tre regne vr paki maa eden ned 14 Board Top Silk And Pads eere Ratte ber x pene 15 AA Board Top Copper And Pads essen 15 5 Board tele RE ele 16 Appendix B Bill of Materials Worldwide Sales and Service 18 2011 Microchip Technology Inc DS51978A page 3 MCP16301 600 mA DEMO BOARD
18. ress Enter F1 Courier New font Plain Courier New Sample source code define START Filenames autoexec bat File paths c mcci8 h Keywords _asm _endasm static Command line options Opa Bit values 0 1 Constants OxFF A Italic Courier New A variable argument file o Where file can any valid filename Square brackets Optional arguments mcci8 options file options Curly brackets and pipe character Choice of mutually exclusive arguments an OR selection errorlevel 011 Ellipses Replaces repeated text var name var name Represents code supplied by user void main void EE DS51978A page 6 2011 Microchip Technology Inc Preface RECOMMENDED READING This user s guide describes how to use MCP16301 600 mA Demo Board Other useful documents are listed below The following Microchip documents are available and recommended as supplemental reference resources MCP16301 Data Sheet High Voltage Input Integrated Switch Step Down Regulator DS25004 MCP16301 300 mA D2PAK Demo Board User s Guide DS51983 AN1385 Dynamic Analysis of the MCP16301 Switch Mode Power Converter Utilizing the MCP16301 Design Analyzer DS01385 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 fi
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