Microchip Technology MCP19035 User Manual
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Microchip Technology MCP19035 User Manual

Microchip Technology MCP19035 User Manual

300 khz synchronous; buck controller
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MCP19035
300 kHz Synchronous
Buck Controller
Evaluation Board
User's Guide
 2012 Microchip Technology Inc.
DS52099A

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Summary of Contents for Microchip Technology MCP19035

  • Page 1 MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide  2012 Microchip Technology Inc. DS52099A...
  • Page 2 Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA and Z-Scale 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. GestIC and ULPP are registered trademarks of Microchip Technology Germany II GmbH &...
  • Page 3 MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide Object of Declaration: MCP19035 300 kHz Synchronous Buck Controller Evaluation Board  2012 Microchip Technology Inc. DS52099A-page 3...
  • Page 4 MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide NOTES:  2012 Microchip Technology Inc. DS52099A-page 4...

  • Page 5: Table Of Contents

    Chapter 1. Product Overview 1.1 Introduction ....................11 1.2 MCP19035 Short Overview ................11 1.3 What Is the MCP19035 300 kHz Synchronous Buck Controller Evaluation Board? .................. 12 1.4 What the MCP19035 300 kHz Synchronous Buck Controller Evaluation Board Kit Contains ..............12 Chapter 2.
  • Page 6 MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide  2012 Microchip Technology Inc. DS52099A-page 6...

  • Page 7: Preface

    • Document Revision History DOCUMENT LAYOUT This document describes how to use the MCP19035 300 kHz Synchronous Buck Controller Evaluation Board as a development tool to emulate and debug firmware on a target board. The manual layout is as follows: •...

  • Page 8: Conventions Used In This Guide

    MCP19035 300 kHz Synchronous Buck Controller 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 IDE User’s Guide Emphasized text ...is the only compiler...

  • Page 9: Recommended Reading

    Preface RECOMMENDED READING This user's guide describes how to use MCP19035 300 kHz Synchronous Buck Controller Evaluation Board. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources. • MCP19035 Data Sheet – “High-Speed Synchronous Buck Controller”...
  • Page 10 MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide NOTES:  2012 Microchip Technology Inc. DS52099A-page 10...

  • Page 11: Chapter 1. Product Overview

    BOARD USER’S GUIDE Chapter 1. Product Overview INTRODUCTION This chapter provides an overview of the MCP19035 300 kHz Synchronous Buck Controller Evaluation Board, and covers the following topics: • Short Overview: MCP19035 • What Is the MCP19035 300 kHz Synchronous Buck Controller Evaluation Board? •...

  • Page 12: What Is The Mcp19035 300 Khz Synchronous Buck Controller Evaluation Board

    WHAT IS THE MCP19035 300 KHZ SYNCHRONOUS BUCK CONTROLLER EVALUATION BOARD? The MCP19035 300 kHz Synchronous Buck Controller Evaluation Board is a compact, highly efficient, step-down voltage regulator that will convert the input voltage rail (typically 12V) to 1.8V regulated output voltage. The maximum output current for this step-down converter is 15A.

  • Page 13: Chapter 2. Installation And Operation

    BOARD USER’S GUIDE Chapter 2. Installation and Operation INTRODUCTION The MCP19035 300 kHz Synchronous Buck Controller Evaluation Board was devel- oped to provide a compact, low-cost and highly efficient step-down conversion for low to medium output currents. The key features of this board include: •...

  • Page 14: Board Testing

    MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide 2.2.3 Board Testing The typical test setup is depicted in Figure 2-1. Table 2-1 shows all the available test points on the board. The user can connect various instruments at the listed test points to evaluate the parameters of the converter.
  • Page 15 Table 2-2 shows the standard values of R12 resistor for some usual output voltages. TABLE 2-2: OUTPUT VOLTAGE VERSUS R12 VALUE R12 (k) 40.2 13.3 8.45 2.25 7.32 6.34 4.42  2012 Microchip Technology Inc. DS52099A-page 15...
  • Page 16 MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide NOTES:  2012 Microchip Technology Inc. DS52099A-page 16...

  • Page 17: Appendix A. Schematic And Layouts

    Appendix A. Schematic and Layouts INTRODUCTION This appendix contains the following schematics and layouts for the MCP19035 300 kHz Synchronous Buck Controller Evaluation Board: • Board – Schematic • Board – Top Silk and Pads • Board – Top Copper and Silk •...

  • Page 18: Board - Schematic

    B0530WS SHDN HIGHDR TP14 PHASE 1.5uH/19.5A VOUT COMP BOOT MCP87022 7.5k 6.8nF 0.33uF LOWDR 100uF 100uF 100uF PWRGD 68pF ED120/2DS MCP19035 PGOOD TP15 100k 4.7uF 0805 2N7002-7-F 5.1k PGND PGND PGND PGND 5.1k PGOOD 49.9 PGOOD TP16 820pF TP17 TP18...

  • Page 19: Board - Top Silk And Pads

    Schematic and Layouts BOARD – TOP SILK AND PADS  2012 Microchip Technology Inc. DS52099A-page 19...

  • Page 20: Board - Top Copper And Silk

    MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide BOARD – TOP COPPER AND SILK  2012 Microchip Technology Inc. DS52099A-page 20...

  • Page 21: Board - Top Copper

    Schematic and Layouts BOARD – TOP COPPER  2012 Microchip Technology Inc. DS52099A-page 21...

  • Page 22: Board - Mid Layer 1

    MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide BOARD – MID LAYER 1  2012 Microchip Technology Inc. DS52099A-page 22...

  • Page 23: Board - Mid Layer 2

    Schematic and Layouts BOARD – MID LAYER 2  2012 Microchip Technology Inc. DS52099A-page 23...

  • Page 24: Board - Bottom Copper And Pads

    MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide BOARD – BOTTOM COPPER AND PADS  2012 Microchip Technology Inc. DS52099A-page 24...

  • Page 25: Board - Bottom Copper, Silk And Pads

    Schematic and Layouts BOARD – BOTTOM COPPER, SILK AND PADS  2012 Microchip Technology Inc. DS52099A-page 25...
  • Page 26 MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide NOTES:  2012 Microchip Technology Inc. DS52099A-page 26...

  • Page 27: Appendix B. Bill Of Materials

    On-Shore ED120/2DS Technology, Inc. ® Inductor Power 1.5µH 19.5A SMD Wurth Elektronik 7443320150 Group Printed Circuit Board - MCP19035 300 kHz — 104-00434 Synchronous Buck Controller Evaluation Board High Performance MOSFET Transistor Microchip MCP87050-U/MF Technology Inc. High Performance MOSFET Transistor...
  • Page 28 MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User’s Guide NOTES:  2012 Microchip Technology Inc. DS52099A-page 28...

  • Page 29: Appendix C. Typical Performance Data, Curves And Waveforms

    BOARD USER’S GUIDE Appendix C. Typical Performance Data, Curves and Waveforms INTRODUCTION This chapter shows some of the typical performace parameters and curves of the MCP19035 300 kHz Synchronous Buck Controller Evaluation Board. TABLE C-1: CONVERTER PARAMETERS Parameter Value Comments...
  • Page 30 1.796 1.795 1.794 1.793 1.792 1.791 1.79 5000 10000 15000 (mA) FIGURE C-2: Load Regulation (V = 12V). FIGURE C-3: Output Voltage Ripple/Noise (V = 12V, I = 10A, BW = 20 MHz).  2012 Microchip Technology Inc. DS52099A-page 30...
  • Page 31 Input Voltage Ripple/Noise (V = 12V, I = 10A, BW = 20 MHz). FIGURE C-5: SW (TP11), LDRV (TP10) and HDRV (TP9) signals (V = 12V, I = 10A, BW = 300 MHz).  2012 Microchip Technology Inc. DS52099A-page 31...
  • Page 32 FIGURE C-6: LDRV (TP10) and HDRV (TP9) signals (V = 12V, I = 10A, BW = 300 MHz). FIGURE C-7: Dead Times 1 (V = 12V, I = 1A, BW = 300 MHz).  2012 Microchip Technology Inc. DS52099A-page 32...
  • Page 33 Typical Performance Data, Curves and Waveforms FIGURE C-8: Dead Times 2 (V = 12V, I = 1A, BW = 300 MHz). FIGURE C-9: The Body Diode Conduction Time (V = 12V, I = 10A, BW = 300 MHz).  2012 Microchip Technology Inc. DS52099A-page 33...
  • Page 34 Typical Performance Data, Curves and Waveforms FIGURE C-10: Step Load 1 (V = 12V). FIGURE C-11: Step Load 2 (V = 12V).  2012 Microchip Technology Inc. DS52099A-page 34...
  • Page 35 Typical Performance Data, Curves and Waveforms FIGURE C-12: Power Good Signal (PGOOD). FIGURE C-13: Soft Start.  2012 Microchip Technology Inc. DS52099A-page 35...

  • Page 36: Worldwide Sales And Service

    Thailand - Bangkok Tel: 86-29-8833-7252 Tel: 66-2-694-1351 Toronto Fax: 86-29-8833-7256 Fax: 66-2-694-1350 Mississauga, Ontario, Canada China - Xiamen Tel: 905-673-0699 Tel: 86-592-2388138 Fax: 905-673-6509 Fax: 86-592-2388130 China - Zhuhai Tel: 86-756-3210040 10/26/12 Fax: 86-756-3210049  2012 Microchip Technology Inc. DS52099A-page 36...
  • Page 37 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Microchip ADM00434...

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