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SOT23-5 VOLTAGE REGULATOR

EVALUATION BOARD USER’S GUIDE

©

 2009 Microchip Technology Inc.

DS51811A-page 1

Preface

INTRODUCTION

This chapter contains general information that will be useful to know before using the 
SOT23-5 Voltage Regulator Evaluation 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 SOT23-5 Voltage Regulator Evaluation Board 
as a development tool to emulate and debug firmware on a target board. The manual 
layout is as follows:

Chapter 1. “Product Overview”

 – Important information about the SOT23-5 

Voltage Regulator Evaluation Board.

Chapter 2. “Installation and Operation”

 – This chapter includes a detailed 

description of each function of the demo board and instructions for how to begin 
using the board.

Appendix A. “Schematic and Layouts”

 Shows the schematic and layout 

diagrams for the SOT23-5 Voltage Regulator Evaluation Board.

Appendix B. “Bill of Materials (BOM)”

 – Lists the parts used to build the 

SOT23-5 Voltage Regulator Evaluation Board.

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.

Summary of Contents for SOT23-5

Page 1: ...2009 Microchip Technology Inc DS51811A SOT23 5 Voltage Regulator Evaluation Board User s Guide...

Page 2: ...rochip Technology Incorporated in the U S A All other trademarks mentioned herein are property of their respective companies 2009 Microchip Technology Incorporated Printed in the U S A All Rights Rese...

Page 3: ...Chapter 1 Product Overview 1 1 Introduction 5 1 2 What is the SOT23 5 Voltage Regulator Evaluation Board 5 1 3 What the SOT23 5 Voltage Regulator Evaluation Board kit includes 7 Chapter 2 Installation...

Page 4: ...SOT23 5 Voltage Regulator Evaluation Board User s Guide DS51811A page iv 2009 Microchip Technology Inc NOTES...

Page 5: ...instructions for how to begin using the board Appendix A Schematic and Layouts Shows the schematic and layout diagrams for the SOT23 5 Voltage Regulator Evaluation Board Appendix B Bill of Materials B...

Page 6: ...Save 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 a...

Page 7: ...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 G...

Page 8: ...SOT23 5 Voltage Regulator Evaluation Board User s Guide DS51811A page 4 2009 Microchip Technology Inc NOTES...

Page 9: ...ich will allow the user to plug in additional boards to increase the test capability of the voltage regulator Planned additional modulare plugin boards currently consist of an Input Voltage Linestep B...

Page 10: ...a current meter is connected to TP6 and TP7 and jumper JP3 is removed the ground current of the device may be measured 1 2 5 Voltage Adjust For Adjustable Output Voltage devices R2 and R3 may be popu...

Page 11: ...y Inc DS51811A page 7 1 3 WHAT THE SOT23 5 VOLTAGE REGULATOR EVALUATION BOARD KIT INCLUDES This SOT23 5 Voltage Regulator Evaluation Board kit includes One SOT23 5 Voltage Regulator Evaluation Board 1...

Page 12: ...SOT23 5 Voltage Regulator Evaluation Board User s Guide DS51811A page 8 2009 Microchip Technology Inc NOTES...

Page 13: ...HDN pin is also populated on the board The PWRGD ADJ pin has a 69 8 k resistor soldered to the board The board has three more unpopulated resistor locations that may be used for loads and voltage adju...

Page 14: ...e Ground Current directly from the ammeter connected to testpoints TP6 and TP7 10 Vary the input voltage to obtain data for ground current versus input voltage With no load attached to the output of t...

Page 15: ...The input voltage is then electronically switched from a low voltage to a high voltage The corresponding voltage waveform data of the voltage regulator response is captured by the oscilloscope Microc...

Page 16: ...SOT23 5 Voltage Regulator Evaluation Board User s Guide DS51811A page 12 2009 Microchip Technology Inc NOTES...

Page 17: ...Technology Inc DS51811A page 13 Appendix A Schematic and Layouts A 1 INTRODUCTION This appendix contains the following schematics and layouts for the SOT23 5 Voltage Regulator Evaluation Board Board...

Page 18: ...Board User s Guide DS51811A page 14 2009 Microchip Technology Inc A 2 BOARD SCHEMATIC Date REV Revision Notes Adj Adj 1 Bypass Vout Input Voltage 0V to 50V Pwrgd Error Initial Release Gnd 3 3V OUT Ou...

Page 19: ...Schematic and Layouts 2009 Microchip Technology Inc DS51811A page 15 A 3 BOARD TOP SILK AND PADS...

Page 20: ...SOT23 5 Voltage Regulator Evaluation Board User s Guide DS51811A page 16 2009 Microchip Technology Inc A 4 BOARD TOP COPPER...

Page 21: ...Schematic and Layouts 2009 Microchip Technology Inc DS51811A page 17 A 5 BOARD BOTTOM COPPER...

Page 22: ...SOT23 5 Voltage Regulator Evaluation Board User s Guide DS51811A page 18 2009 Microchip Technology Inc NOTES...

Page 23: ...28 4360 1 JP2 3 pin header 0 100 centers 0 025 sq pins 0 070 pcb to pin center height 36 pins to a strip yields 12 headers Molex Electronics 22 28 4360 4 JP1 JP4 Connector Jumper Shorting Tin Sullins...

Page 24: ...ng 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 Xiamen Tel 86 592 2388138 Fax 86 592 23881...

Page 25: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Microchip SOT23 5EV VREG...

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