Microchip Technology MIC38300 User Manual

MIC38300

Evaluation Board

User’s Guide

 2018 Microchip Technology Inc. DS50002796A

Note the following details of the code protection feature on Microchip devices:

YSTEM

CERTIFIE DBYDNV

== ISO/TS16949==

• 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and may be superseded by updates.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
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hold harmless Microchip from any and all damages, claims,
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Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
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and India. The Company’s quality system processes and procedures
are for its PIC
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.

®

MCUs and dsPIC® DSCs, KEELOQ

®

code hopping

QUALITYMANAGEMENTS

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

DS50002796A-page 2  2018 Microchip Technology Inc.

MIC38300

EVALUATION BOARD

USER’S GUIDE

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

 2018 Microchip Technology Inc. DS50002796A-page 3

MIC38300

EVALUATION BOARD

USER’S GUIDE

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 “XXXXXXXX” 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
Select the Help menu, and then Topics, to open a list of available online help files.

®

IDE online help.

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.

 2018 Microchip Technology Inc. DS50002796A-page 4

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB

Initial caps A window the Output window

Quotes A field name in a window or

Underlined, italic text with
right angle bracket

Bold characters A dialog button Click OK

N‘Rnnnn A number in verilog format,

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sample source code #define START

Italic Courier New A variable argument file.o, where file can be

Square brackets [ ] Optional arguments mcc18 [options] file

Curly brackets and pipe
character: { | }

Ellipses... Replaces repeated text var_name [,

Preface

®

IDE User’s Guide

Emphasized text ...is the only compiler...

A dialog the Settings dialog

A menu selection select Enable Programmer

“Save project before build”

dialog

A menu path File>Save

A tab Click the Power tab

4‘b0010, 2‘hF1
where N is the total number of
digits, R is the radix and n is a
digit.

Filenames autoexec.bat

File paths c:\mcc18\h

Keywords _asm, _endasm, static

Command-line options -Opa+, -Opa-

Bit values 0, 1

Constants 0xFF, ‘A’

any valid filename

[options]

Choice of mutually exclusive
arguments; an OR selection

Represents code supplied by
user

errorlevel {0|1}

var_name...]

void main (void)

{ ...

}

 2018 Microchip Technology Inc. DS50002796A-page 5

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

Preface

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

 2018 Microchip Technology Inc. DS50002796A-page 6

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
tecture of the MIC38300 device that is targeting fast transient response, make this part
ideal for powering ASICs, FPGAs or point of load applications.

MIC38300

EVALUATION BOARD

USER’S GUIDE

. All of these, combined with the optimized archi-

pkpk

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

 2018 Microchip Technology Inc. DS50002796A-page 7

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

 2018 Microchip Technology Inc. DS50002796A-page 8

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

•70dB 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

MIC38300

EVALUATION BOARD

USER’S GUIDE

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 VIN 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
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
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
and the negative terminal to the corresponding test point marked with GND.

IN=VR

+ 1.2V). Do not apply a

, the

IN

OUT

Note: Note that an electronic load has the tendency to sink a current when the

output of the LDO is 0V.

 2018 Microchip Technology Inc. DS50002796A-page 9

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

2. Use a multimeter to measure the input voltage and the output voltage. V
be 1.8V.

3. Connect an electronic load between V
of 2.2A for the MIC38300 device. Resistors can also be used between the V
and GND terminals as a load. Test V

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.

=3.3V.

IN

and GND set to maximum load current

OUT

(should be 1.8V).

R

should

R

OUT

 2018 Microchip Technology Inc. DS50002796A-page 10

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

MIC38300

EVALUATION BOARD

USER’S GUIDE

 2018 Microchip Technology Inc. DS50002796A-page 11

DS50002796A-page 12  2018 Microchip Technology Inc.

SWO

1

SWO

2

SWO

3

SWO

4

SWO

5

SW

6

SW

23

SW

24

SW

25

SW

26

SW

27

SW

28

ePAD7ePAD

22

AVIN

8

LPF

9

AGND

10

FB

11

LDOOUT

12

LDOOUT

13

LDOIN

14

LDOIN

15

PVIN

16

PVIN

17

EN

18

PGND19PGND20PGND

21

SWO

SWO

SWO

SWO

SWO

SW

SW

SW

SW

SW

SWSWAV

AG

FB

OOUT

OOUT

N

N

PVIN

PVIN

EN

NDN

N

MIC38300

U1

AGND

PGND

LDO_IN

LDO_IN

J1

J5

J6

J2

VIN

10k
0603
5%

R4

12.1k
0603
1%

R1

15.4k
0603
1%

R2

24.3k
0603
1%

R3

PGND

1
2

J3

AGND

GND

PGND

AGND

AGND

PGND

PGND

Net Tie

0.5mm

NT1

AGNDGND

Net Tie

0.5mm

NT2

1uF
16V
0805

C2

10uF
25V
0805

C1

10uF
25V
0805

C3

10uF
25V
0805

C4

10uF
25V
0805

C5

10uF
25V
0805

C6

A.2 BOARD – SCHEMATIC

MIC38300 Evaluation Board User’s Guide

IN

ND

LD
LD

LDOI
LDOI

PF

A.3 BOARD – TOP SILK

A.4 BOARD – TOP COPPER AND SILK

 2018 Microchip Technology Inc. DS50002796A-page 13

A.5 BOARD – TOP COPPER

A.6 BOARD – SIGNAL LAYER 1

 2018 Microchip Technology Inc. DS50002796A-page 14

A.7 BOARD – SIGNAL LAYER 2

A.8 BOARD – BOTTOM COPPER

 2018 Microchip Technology Inc. DS50002796A-page 15

A.9 BOARD – BOTTOM COPPER AND SILK







 





A.10 BOARD – BOTTOM SILK

 2018 Microchip Technology Inc. DS50002796A-page 16

MIC38300

EVALUATION BOARD

USER’S GUIDE

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

1 C2 Ceramic Capacitor, 1 F, 1 6V, 1 0% , X 7 R,

4 J1, J2, J5, J6 Connector, TP, PIN, Tin, TH Harwin Plc. H2121-01

1 J3 Connector, HDR-2.54, Male, 1x2, Tin,

1 LABEL2 LABEL, ASSY W/REV LEVEL (SMALL

4PAD1, PAD2,

PAD 3 , PA D4

1 PCB1 MIC38300 Evaluation Board – Printed

1 R1 Resistor, TKF, 12.1 k, 1%, 1/10W,

1 R2 Resistor, TKF, 15.4 k, 1%, 1/10W,

1 R3 Resistor, TKF, 24.3 k 1%, 1/10W,

1 R4 Resistor, TKF, 10 k 5%, 1/10W, SMD,

1 U1 MCHP ANALOG LDO 1V

Ceramic Capacitor, 10 F, 25V, 10%,
X5R, SMD, 0805

SMD, 0805

6.75 MH, TH, VERT

MODULES) PER MTS-0002

Mechanical HW Rubber Pad, Cylindrical,
D7.9, H5.3, Black

Circuit Board

SMD, 0603

SMD, 0603

SMD, 0603

0603

MIC38300HYHL VQFN-28

TDK Corporation C2012X5R1E106K125AB

Wurth Elektronik 885012207051

®

Molex

——

3M™ SJ61A11

Microchip
Technology Inc.

Panasonic

Panasonic — BSG ERJ-3EKF1542V

Panasonic — BSG ERJ-3EKF2432V

Panasonic — BSG ERJ-3GEYJ103V

Microchip
Technology Inc.

®

— BSG ERJ-3EKF1212V

0901200122

04-10633-R1

MIC38300HYHL

 2018 Microchip Technology Inc. DS50002796A-page 17

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

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Tel: [phone]
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ASIA/PACIFIC

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Tel: [phone]

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India - Bangalore

Tel: [phone]

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Philippines - Manila

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Singapore

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Taiwan - Hsin Chu

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Fax: [phone]

Germany - Rosenheim

Tel: [phone]

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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]

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Tel: [phone]

Sweden - Stockholm

Tel: [phone]

UK - Wokingham

Tel: [phone]
Fax: [phone]

 2018 Microchip Technology Inc. DS50002796A-page 18

08/15/18