MIC38300 - Carte d'évaluation Microchip - Free user manual and instructions

USER MANUAL MIC38300 Microchip

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 be a violation of the Digital Millennium 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in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates.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 NO 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 unless otherwise stated.

Microchip 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, KEELQQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified.

QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV = ISO/TS 16949=

Trademarks

The Microchip name and logo, the Microchip logo, AnyRate, AVR, AVR logo, AVR Freaks, BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo, JukeBlox, KeeLoq, Kleer, LANCheck, LINK MD, maXStylus, maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB, OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip Designer, QTouch, SAM-BA, SpyNIC, SST, SST Logo, SuperFlash, tinyAVR, UNI/O, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

ClockWorks, The Embedded Control Solutions Company, EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS, mTouch, Precision Edge, and Quiet-Wire are registered trademarks of Microchip Technology Incorporated in the U.S.A.

Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi, motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, 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.

Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries.

GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries.

All other trademarks mentioned herein are property of their respective companies.

© 2018, Microchip Technology Incorporated, All Rights Reserved. ISBN: 978-1-5224-3472-6

Table of Contents

Preface 4

Introduction....4

Document Layout 4

Conventions Used in this Guide 5

Recommended Reading....6

The Microchip WebSite 6

Product Change Notification Service....6

Customer Support 6

Document Revision History 6

Chapter 1. Product Overview

1.1 Introduction ...... 7

1.2 MIC38300 Short Overview 7

1.3 MIC38300 Evaluation Board Description 8

1.4 What does the MIC38300 Evaluation Board kit include? 8

Chapter 2. Installation and Operation

2.1 Introduction ...... 9

2.1.1 MIC38300 Device Features 9

2.1.2 MIC38300 Evaluation Board Features 9

2.2 Getting Started 9

2.2.1 Powering the MIC38300 Evaluation Board 9

2.3 Testing the MIC38300 Evaluation Board 10

Appendix A. Schematic and Layouts

A.1 Introduction 11

A.2 Board – Schematic 12

A.3 Board – Top Silk 13

A.4 Board – Top Copper and Silk 13

A.5 Board – Top Copper 14

A.6 Board – Signal Layer 1 ..... 14

A.7 Board – Signal Layer 2 .... 15

A.8 Board – Bottom Copper 15

A.9 Board – Bottom Copper and Silk 16

A.10 Board – Bottom Silk 16

Appendix B. Bill of Materials (BOM)

Worldwide Sales and Service 18

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 website (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 "DSXXXXXXXXA", where "XXXXXXXXX" 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 online help. Select the Help menu, and then Topics, to open a list of available online help files.

INTRODUCTION

This chapter contains general information that will be useful to know before using the MIC38300 Evaluation Board. Items discussed in this chapter include:

• Document Layout
  • Conventions Used in this Guide
  • Warranty Registration
  • Recommended Reading
  • The Microchip WebSite
• Customer Support
  • Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MIC38300 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 MIC38300 Evaluation Board.
• Chapter 2. “Installation and Operation” – Includes instructions on starting and using the MIC38300 Evaluation Board.
• Appendix A. "Schematic and Layouts" – Shows the schematic and layout diagrams for the MIC38300 Evaluation Board.
• Appendix B. "Bill of Materials (BOM)" – Lists the parts used to build the MIC38300 Evaluation Board.

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples
Arial font:
Italic characters Referenced book	oks 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 dialog	"Save project before build"
Underlined, italic text with right angle bracket	A menu path File>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 angle brackets <>	A key on the keyboard	Press,,
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-
	Bit values	0, 1
	Constants	0xFF, 'A'
Italic Courier New	A variable argument	file.o, where file can be any valid filename
Square brackets []	Optional arguments	mccl8 [options] file [options]
Curly brackets and pipe character: { | }	Choice of mutually exclusive arguments; an OR selection	errorlevel {0|1}
Ellipses... Replaces repeated text	var_name [,	var_name...]
	Represents code supplied by user	void main (void) { ... }

RECOMMENDED READING

This user's guide describes how to use the MIC38300 Evaluation Board. Another useful document is listed below. The following Microchip document is available and recommended as a supplemental reference resource:

MIC38300 Data Sheet – “HELDO® 3A High-Efficiency Low Dropout Regulator”

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

PRODUCT CHANGE NOTIFICATION SERVICE

Microchip's customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notifications whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest.

To register, access the Microchip website at www.microchip.com, click on Product Change Notification and follow the registration instructions.

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 (August 2018)

- Initial release of this document

Chapter 1. Product Overview

1.1 INTRODUCTION

This chapter covers the following topics about the MIC38300 Evaluation Board:

• MIC38300 Device Short Overview
• MIC38300 Evaluation Board Description
• What Does the MIC38300 Evaluation Board Kit Include?

1.2 MIC38300 SHORT OVERVIEW

The MIC38300 device is a high-efficiency, step-down converter, part of the HELDO (High Efficiency Low Dropout) family. It is available with 2.2A output current in continuous operation, 3A peak operation for the MIC38300 device or with an output current of 1.5A for the MIC38150.

The MIC38300 fully integrates a switcher, the coil, switching MOSFETs and LDO, resulting in a highly efficient solution for stepping down a wide range of input voltages while providing a good PSRR (Power Supply Rejection Ratio) of 70 dB at 1 kHz and low output ripple, less than 5 mV _pkpk . All of these, combined with the optimized architecture of the MIC38300 device that is targeting fast transient response, make this part ideal for powering ASICs, FPGAs or point of load applications.

3.0V TO 5.5V 10µF PVIN SWO SW 25k 10µF MIC38300 EN PGND AVIN LDOIN LDOOUT 1µF AGND FB 10µF 1V @ 2.2A GND GND

FIGURE 1-1: MIC38300 Evaluation Board – Typical Applications.

1.3 MIC38300 EVALUATION BOARD DESCRIPTION

The MIC38300 Evaluation Board operates with an input supply voltage range of 3V up to 5.5V and has an adjustable output, which is set to 1.8V. The MIC38300 Evaluation Board comes with test points, allowing easy integration into a test set-up.

1.4 WHAT DOES THE MIC38300 EVALUATION BOARD KIT INCLUDE?

The MIC38300 Evaluation Board kit includes:

• MIC38300 Evaluation Board
- Important information sheet

Chapter 2. Installation and Operation

2.1 INTRODUCTION

2.1.1 MIC38300 Device Features

• 3A Peak Output Current and 2.2A Continuous Operating Current for MIC38300
- Input Voltage Range: 3V to 5.5V
- Adjustable Output Voltage Down to 1V
- Low Output Ripple: Less Than 5 mV
• 70 dB PSRR
• Ultra Fast Transient Performance
- Unique Switcher and LDO Architecture
• Thermal Shutdown and Current Limit
- 4 mm x 6 mm x 0.9 mm MLF Package

2.1.2 MIC38300 Evaluation Board Features

The MIC38300 Evaluation Board was developed to showcase the MIC38300 device's performances over a wide input voltage range and load current range. The board comes with a MIC38300 adjustable output voltage, which is set using the divider network to 1.8V and access is given to the input and output pins, EN pin and Ground pins. The user can experiment with different output voltage values by changing the network divider resistor value.

2.2 GETTING STARTED

The MIC38300 Evaluation Board is fully assembled and tested to evaluate and demonstrate the characteristics of the MIC38300 or the MIC38150 devices.

2.2.1 Powering the MIC38300 Evaluation Board

Apply the positive input voltage to the test point marked as V_IN and the return ground connection to the test point marked as GND. The input voltage needs to be a minimum of 3V in order to test the 1.8V output voltage option ( V_IN = V_R + 1.2V ). Do not apply a voltage higher than 5.5V, as the part can be damaged in the process. The MIC38300 device is on, as the default option; being turned on with a pull-up resistor to V_IN , the part can be shut down by placing a jumper on the EN connector.

Care should be taken in case of a hot plug at 5.5V. A high ESR capacitor aluminum electrolytic or tantalum should be placed close to the input pin, in order to prevent voltage spikes that can damage the part.

The output current capabilities can be tested using resistive loads or an electronic load set to constant resistance. The positive terminal of the load must be connected to V_OUT and the negative terminal to the corresponding test point marked with GND.

Note: Note that an electronic load has the tendency to sink a current when the output of the LDO is 0V.

2.3 TESTING THE MIC38300 EVALUATION BOARD

In order to test the MIC38300 Evaluation Board, follow the next steps:

1. Apply the appropriate input voltage, V_IN = 3.3 V .
2. Use a multimeter to measure the input voltage and the output voltage. V_R should be 1.8V.
3. Connect an electronic load between V_OUT and GND set to maximum load current of 2.2A for the MIC38300 device. Resistors can also be used between the V_OUT and GND terminals as a load. Test V_R (should be 1.8V).
4. Connect Jumper on the EN header. Test VR; it should be 0V.
5. Remove the jumper from the EN header. VR should be 1.8V.
6. By adjusting the input voltage or the load while still maintaining nominal operating conditions, the LDO will remain in regulation.

Appendix A. Schematic and Layouts

A.1 INTRODUCTION

This appendix contains the following schematics and layouts for the MIC38300 Evaluation Board:

• Board – Schematic
• Board – Top Silk
• Board – Top Copper and Silk
• Board – Top Copper
• Board – Signal Layer 1
• Board – Signal Layer 2
• Board – Signal Layer 2
• Board – Bottom Copper and Silk
• Board – Bottom Silk

A.2 BOARD - SCHEMATIC

PGND J2 C1 10uF 25V 0605 U1 MIC38300 R4 10k 0603 5% VIN J3 PGND R2 1uF 16V 0805 AGND 16 17 18 AVIN C2 1uF 16V 0805 AGND 19 PGND 20 PGND 21 PGND 22 ePAD ePAD LDOOUT1 LDOOUT1 LDOUTN LDOUTN FR LDO_IN SWO SWO SWO SWO SWO SWO SWO SWO SWO SWO SWO SWO SWO LPF 6 23 24 25 26 27 28 9 12 13 14 15 LDO_IN R1 12.1k 0603 1% LDO_IN R2 15.4k 0603 1% AGND AGNDGND C3 10uF 25V 0805 PGND C4 10uF 25V 0605 J5 C5 10uF 25V 0805 GND C6 10uF 25V 0805 J6 NT1 Net Tie 0.5mm NT2 Net Tie 0.5mm

A.3 BOARD - TOP SILK

GND MICROCHIP GND C4 U1 R3 C1 R4 EN C2 C3 VOUT C6 C5 R1 R2 VIN ADM00822 MIC38300 Evaluation Board

A.4 BOARD – TOP COPPER AND SILK

GND MICROCHIP GND C4 U1 R3 C1 R4 EN C2 C3 VOUT C6 C5 ADM00822 VIN R2 MIC38300 Evaluation Board

A.5 BOARD - TOP COPPER

Pure electrical circuit lines without any symbols

A.6 BOARD - SIGNAL LAYER 1

Abstract geometric pattern with scattered blue circles and a grid of dots on a teal background (no text or symbols)

A.7 BOARD - SIGNAL LAYER 2

Abstract diagram with blue circles and squares on a teal background, no text or symbols present

A.8 BOARD - BOTTOM COPPER

Abstract circuit board pattern with blue circular components and dot grid on teal background (no text or symbols)

A.9 BOARD - BOTTOM COPPER AND SILK

04-10633-R1 eCE RoHS

A.10 BOARD - BOTTOM SILK

eCE RoHS

Appendix B. Bill of Materials (BOM)

TABLE B-1: MIC38300 EVALUATION BOARD - BILL OF MATERIALS (BOM)

Qty.	Reference Description	Manufacturer Part Number
5 C1,	C3, C4,C5, C6	Ceramic Capacitor, 10 μF, 25V, 10%,X5R, SMD, 0805	TDK Corporation C20	12X5R1E106K125AB
1 C2	Ceramic Capacitor	1 μF, 16V, 10%, X7RSMD, 0805	Wurth Elektronik	885012207051
4	J1, J2, J5, J6	Connector, TP, PIN, Tin, TH	Harwin Plc.	H2121-01
1 J3	Connector, HDR-2.54, Male, 1x2, Tin,6.75 MH, TH, VERT		Molex®	0901200122
1 LABEL2	LABEL, ASSY W/REV LEVEL (SMALL MODULES) PER MTS-0002		—	—
4	PAD1, PAD2,PAD3, PAD4	Mechanical HW Rubber Pad, Cylindrical,D7.9, H5.3, Black	3MTM	SJ61A11
1 PCB1	MIC38300 Evaluation Board – Printed Circuit Board		Microchip Technology Inc.	04-10633-R1
1	R1	Resistor, TKF, 12.1 kΩ, 1%, 1/10W,SMD, 0603	Panasonic® — BSG	ERJ-3EKF1212V
1	R2	Resistor, TKF, 15.4 kΩ, 1%, 1/10W,SMD, 0603	Panasonic — BSG	ERJ-3EKF1542V
1 R3	Resistor, TKF, 24.3 kΩ, 1%, 1/10W,SMD, 0603		Panasonic — BSG	ERJ-3EKF2432V
1	R4	Resistor, TKF, 10 kΩ, 5%, 1/10W, SMD,0603	Panasonic — BSG	ERJ-3GEYJ103V
1 U1	MCHP ANALOG LDO 1VMIC38300HYHL VQFN-28		Microchip Technology Inc.	MIC38300HYHL

Worldwide Sales and Service

AMERICAS

Corporate Office

2355 West Chandler Blvd.

Chandler, AZ 85224-6199

Tel: [phone]

Fax: [phone]

Technical Support:

http://www.microchip.com/

support

Web Address:

www.microchip.com

Atlanta

Duluth, GA

Tel: [phone]

Fax: [phone]

Austin, TX

Tel: [phone]

Boston

Westborough, MA

Tel: [phone]

Fax: [phone]

Chicago

Itasca, IL

Tel: [phone]

Fax: [phone]

Dallas

Addison, TX

Tel: [phone]

Fax: [phone]

Detroit

Novi, MI

Tel: [phone]

Houston, TX

Tel: [phone]

Indianapolis

Noblesville, IN

Tel: [phone]

Fax: [phone]

Tel: [phone]

Los Angeles

Mission Viejo, CA

Tel: [phone]

Fax: [phone]

Tel: [phone]

Raleigh, NC

Tel: [phone]

New York, NY

Tel: [phone]

San Jose, CA

Tel: [phone]

Tel: [phone]

Canada - Toronto

Tel: [phone]

Fax: [phone]

ASIA/PACIFIC

Australia - Sydney

Tel: [phone]

China - Beijing

Tel: [phone]

China - Chengdu

Tel: [phone]

China - Chongqing

Tel: [phone]

China - Dongguan

Tel: [phone]

China - Guangzhou

Tel: [phone]

China - Hangzhou

Tel: [phone]

China - Hong Kong SAR

Tel: [phone]

China - Nanjing

Tel: [phone]

China - Qingdao

Tel: [phone]

China - Shanghai

Tel: [phone]

China - Shenyang

Tel: [phone]

China - Shenzhen

Tel: [phone]

China - Suzhou

Tel: [phone]

China - Wuhan

Tel: [phone]

China - Xian

Tel: [phone]

China - Xiamen

Tel: [phone]

China - Zhuhai

Tel: [phone]

ASIA/PACIFIC

India - Bangalore

Tel: [phone]

India - New Delhi

Tel: [phone]

India - Pune

Tel: [phone]

Japan - Osaka

Tel: [phone]

Japan - Tokyo

Tel: [phone]

Korea - Daegu

Tel: [phone]

Korea - Seoul

Tel: [phone]

Malaysia - Kuala Lumpur

Tel: [phone]

Malaysia - Penang

Tel: [phone]

Philippines - Manila

Tel: [phone]

Singapore

Tel: [phone]

Taiwan - Hsin Chu

Tel: [phone]

Taiwan - Kaohsiung

Tel: [phone]

Taiwan - Taipei

Tel: [phone]

Thailand - Bangkok

Tel: [phone]

Tel: [phone]

Fax: [phone]

Denmark - Copenhagen

Tel: [phone]

Fax: [phone]

Finland - Espoo

Tel: [phone]

France - Paris

Tel: [phone]

Fax: [phone]

Germany - Garching

Tel: [phone]

Germany - Haan

Tel: [phone]

Germany - Heilbronn

Tel: [phone]

Germany - Karlsruhe

Tel: [phone]

Germany - Munich

Tel: [phone]

Fax: [phone]

Germany - Rosenheim

Tel: [phone]

Israel - Ra'anana

Tel: [phone]

Italy - Milan

Tel: [phone]

Fax: [phone]

Italy - Padova

Tel: [phone]

Netherlands - Drunen

Tel: [phone]

Fax: [phone]

Norway - Trondheim

Tel: [phone]

Poland - Warsaw

Tel: [phone]

Romania - Bucharest

Tel: [phone]

Spain - Madrid

Tel: [phone]

Fax: [phone]

Sweden - Gothenberg

Tel: [phone]

Sweden - Stockholm

Tel: [phone]

UK - Wokingham

Tel: [phone]

Fax: [phone]