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Preface

©

 2009 Microchip Technology Inc.

DS51811A-page 3

RECOMMENDED READING

This user's guide describes how to use SOT23-5 Voltage Regulator Evaluation Board. 
Other useful documents are listed below. The following Microchip documents are 
available and recommended as supplemental reference resources.

MCP1801 Data Sheet - 

“150 mA, High PSRR, Low Quiescent Current LDO”

DS22051
MCP1802 Data Sheet - 

“300 mA, High PSRR, Low Quiescent Current LDO”

DS22053
TC1014/1015/1185 Data Sheet - 

“50 mA, 100 mA and 150 mA CMOS LDOs with 

Shutdown and Reference Bypass”

, DS21335

These datasheets provide useful information regarding voltage regulator parameters 
that may be validated using this evaluation board.

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 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://support.microchip.com.

DOCUMENT REVISION HISTORY

Revision A (April 2009)

• Initial Release of this Document.

Содержание SOT23-5

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

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

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

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

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

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

Страница 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...

Страница 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...

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

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