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Preface

 2019 Microchip Technology Inc.

DS50002846A-page 6

RECOMMENDED READING

This user’s guide describes how to use the MCP1663 Mini-Module SEPIC Converter 
Evaluation Board. Other useful documents are listed below. The following Microchip 
documents are available and recommended as a supplemental reference resource:

• MCP1663 Data Sheet – 

“High-Voltage Integrated Switch PWM Boost Regulator 

with UVLO” 

(DS20005406) 

• AN2085 – 

“Designing Applications with MCP166X High Output Voltage Boost 

Converter Family”

 (DS00002085)

THE MICROCHIP WEBSITE

Microchip provides online support via our website at 

www.microchip.com

. This website 

is used as a means to make files and information easily available to customers. 
Accessible by using your favorite Internet browser, the website 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 website at: 

http://www.microchip.com/support

.

DOCUMENT REVISION HISTORY

Revision A (May 2019)

• Initial release of this document

Summary of Contents for MCP1663

Page 1: ... 2019 Microchip Technology Inc DS50002846A MCP1663 Mini Module SEPIC Converter Evaluation Board User s Guide ...

Page 2: ...ip received ISO TS 16949 2009 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 addit...

Page 3: ...63 Short Overview 7 1 3 What is the MCP1663 Mini Module SEPIC Converter Evaluation Board 8 1 4 What the MCP1663 Mini Module SEPIC Converter Evaluation Board Kit Contains 9 Chapter 2 Installation and Operation 2 1 Introduction 10 2 2 Getting Started 11 Appendix A Schematic and Layouts A 1 Introduction 14 A 2 Board Schematic 15 A 3 Board Top Silk 16 A 4 Board Top Copper and Silk 16 A 5 Board Top Cop...

Page 4: ... and a description of the user s guide Appendix A Schematic and Layouts Shows the schematic and layout diagrams for the MCP1663 Mini Module SEPIC Converter Evaluation Board Appendix B Bill of Materials BOM Lists the parts used to build the MCP1663 Mini Module SEPIC Converter Evaluation Board NOTICE TO CUSTOMERS All documentation becomes dated and this manual is no exception Microchip tools and doc...

Page 5: ... 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 Bi...

Page 6: ...s 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 M...

Page 7: ...ge typically UVLO Start and the operating input voltage ranges up to 5 5V For standby applications MCP1663 can be turned off by pulling the EN pin to GND The device will stop switching and will consume 300 nA of input current Note that while in Shutdown mode the input voltage will be bypassed to the output through the inductor and the Schottky diode In the Step Up Step Down configuration using a S...

Page 8: ...tween the first and the second inductor The capacitor clamps the winding leakage inductance energy offers DC isolation and protection against a shorted load The input inductor smooths the current draw from the battery and reduces the required input filtering FIGURE 1 1 Typical MCP1663 SEPIC Converter 1 3 WHAT IS THE MCP1663 MINI MODULE SEPIC CONVERTER EVALUATION BOARD The MCP1663 Mini Module SEPIC...

Page 9: ...put and will enable the regulator s output when its voltage is greater than 85 of VIN When this pin is set low or connected to ground the SEPIC converter enters Output Disconnect mode In this application the output voltage is set to the proper value by using an external resistor divider resulting in a simple and compact solution 1 4 WHAT THE MCP1663 MINI MODULE SEPIC CONVERTER EVALUATION BOARD KIT...

Page 10: ...he compensation and protection circuitry so that the final solution lowers the total system cost eases the implementation and requires a minimum number of additional components and a small board area The SEPIC topology is used to provide a positive regulated 3 3V output voltage from an input voltage that varies from a minimum of 2 3V to a maximum of 5V Refer to Figure 2 1 for the maximum output cu...

Page 11: ...on Switching Frequency 500 kHz Peak Input Current Limit 1 8A Internal Compensation Soft Start Overtemperature Protection if the die temperature exceeds 150 C with 15 C hysteresis Small Size Package 13 mm x 9 5 mm DDPAK 2 2 GETTING STARTED The MCP1663 Mini Module SEPIC Converter Evaluation Board is fully assembled and tested to evaluate the MCP1663 product and demonstrate its capabilities This boar...

Page 12: ...Mini Module Bottom View and Pins Description Surface mounted pads are available for input voltage output load and ground connec tions The maximum applied input voltage should not exceed 5 5V Soldered pads are available in order to allow connecting a load The peak current limit of the MCP1663 will provide a safe maximum current value The maximum output cur rent for the converter will vary with the ...

Page 13: ...stor or an electronic load set to 100 mA 4 Set the input voltage to 2 5V and turn on the power supply Use the voltmeter to measure VOUT The output voltage must be regulated around 3 3V 5 5 Change the input voltage in the range of 1 85V to 5V and check if VOUT stays regulated With the VIN below 1 6V the output voltage of the mini module should drop to around 0V FIGURE 2 5 MCP1663 Mini Module SEPIC ...

Page 14: ...ppendix A Schematic and Layouts A 1 INTRODUCTION This appendix contains the following schematics and layouts for the MCP1663 Mini Module SEPIC Converter Evaluation Board ADM01014 Board Schematic Board Top Silk Board Top Copper and Silk Board Top Copper Board Bottom Copper Board Bottom Copper and Silk Board Bottom Silk ...

Page 15: ...15 2019 Microchip Technology Inc A 2 BOARD SCHEMATIC GND GND GND VIN GND GND SW1 SW2 10uF 10V 0603 C2 VOUT 2 2k 0402 RT SW 1 GND 2 FB 3 VIN 5 EN 4 SW GN G G D FB VIN EN E MCP1663 U1 EN 5 6uH L1 5 6uH L2 10uF 10V 0603 C1 4 7uF 10V 0805 CC 1 3k 0402 RB RB161MM 20TR D1 ...

Page 16: ...Schematic and Layouts 2019 Microchip Technology Inc DS50002846A page 16 A 3 BOARD TOP SILK A 4 BOARD TOP COPPER AND SILK A 5 BOARD TOP COPPER ...

Page 17: ...Schematic and Layouts 2019 Microchip Technology Inc DS50002846A page 17 A 6 BOARD BOTTOM COPPER A 7 BOARD BOTTOM COPPER AND SILK A 8 BOARD BOTTOM SILK ...

Page 18: ... RB161MM 20TR 350mV 1A 20V SMD SOD 123F ROHM Semiconductor RB161MM 20TR 2 L1 L2 Inductor Fixed 5 6 µH 2 2A 238 mOHM SMD AEC Q200 Bourns Inc SRP3020TA 5R6M 1 PCB1 Printed Circuit Board Microchip Technology Inc 04 10931 R1 1 RB Resistor TKF 1 3k 1 1 10W SMD 0402 Panasonic ECG ERJ 2RKF1301X 1 RT Resistor TKF 2 2k 1 1 10W SMD 0402 Panasonic ECG ERJ 2RKF2201X 1 U1 Microchip Analog Switcher Boost 32V MC...

Page 19: ...5300 China Xian Tel 86 29 8833 7252 China Xiamen Tel 86 592 2388138 China Zhuhai Tel 86 756 3210040 ASIA PACIFIC India Bangalore Tel 91 80 3090 4444 India New Delhi Tel 91 11 4160 8631 India Pune Tel 91 20 4121 0141 Japan Osaka Tel 81 6 6152 7160 Japan Tokyo Tel 81 3 6880 3770 Korea Daegu Tel 82 53 744 4301 Korea Seoul Tel 82 2 554 7200 Malaysia Kuala Lumpur Tel 60 3 7651 7906 Malaysia Penang Tel ...

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