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USER MANUAL TC1016/TC1017 Microchip

TC1016/TC1017 LDO Evaluation Board User's Guide

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Table of Contents

Preface ....1

Chapter 1. Product Overview

1.1 Introduction ...... 5
1.2 What is the TC1016/TC1017 LDO Evaluation Board? 6
1.3 What the TC1016/TC1017 LDO Evaluation Board Kit Includes 6

Chapter 2. Installation and Operation

2.1 Introduction 7
2.2 Features 7
2.3 Getting Started 7
2.4 Testing Circuit 1 of the TC1016/TC1017 LDO Evaluation Board ...... 9
2.5 Testing Circuit 2 of the TC1016/TC1017 LDO Evaluation Board .... 10
2.6 Using the Line and Load Step Circuitry 11
2.7 Line Step Testing 11
2.8 Load Step testing 13

Appendix A. Schematics and Layouts

A.1 Introduction 15
A.2 Board Schematic – Page 1 ...... 16
A.3 Board Schematic – Page 2 ...... 17
A.4 Board – Assembly Drawing 18
A.5 Board - Top Layer + Silk-Screen 18
A.6 Board – Bottom Layer 19

Appendix B. Bill Of Materials (BOM)

Worldwide Sales and Service 22

NOTES:

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 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.

INTRODUCTION

This chapter contains general information that will be useful to know before using the TC1016/TC1017 LDO 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 TC1016/TC1017 LDO 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 TC1016/TC1017 LDO Evaluation Board.
• Chapter 2. “Installation and Operation” – Includes a description of the evaluation board’s operation, as well as instructions on how to get started.
• Appendix A. “Schematic and Layout” – Shows the schematic and layout diagrams for the TC1016/TC1017 LDO Evaluation Board.
• Appendix B. “Bill Of Materials (BOM)” – Lists the parts used to build the TC1016/TC1017 LDO Evaluation Board.

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...
Initial caps A window the Output	ut 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
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	mcc18 [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 TC1016/TC1017 LDO Evaluation Board. The following Microchip documents are available and recommended as supplemental reference resources.

TC1016 Data Sheet, "80 mA, Tiny CMOS LDO with Shutdown" (DS21666)

TC1017 Data Sheet, "150 mA, Tiny CMOS LDO with Shutdown" (DS21813)

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
• Development Systems Information Line

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 (September 2005)

- Initial Release of this Document

NOTES:

Chapter 1. Product Overview

1.1 INTRODUCTION

The TC1016/TC1017 LDO Evaluation Board is used to evaluate Microchip's TC1016 and TC1017, 80 mA and 150 mA, Low-Dropout (LDO) regulators. This evaluation board contains one circuit for the 5-pin SC-70 package (3.0V output voltage device) and one for the 5-pin SOT-23 package (1.8V output voltage device). Any output voltage version of either device can be used in both circuits. Both LDOs on the TC1016/TC1017 LDO Evaluation Board are the TC1017 device.

This chapter covers the following topics:

• What is the TC1016/TC1017 LDO Evaluation Board?
• What the TC1016/TC1017 LDO Evaluation Board Kit Includes.

VOUT1 VOUT1 TP4 C6 10uF 6.3V JP6 GND TP5 C5 4.7uF 6.3V JP5 C4 1uF 6.3V JP4 Circuit 1 U1 TC1017-3.0VLT 4 VOUT VIN 5 2 NC 3 GND SHDN 1 R1 100k C3 1uF 10V C2 4.7uF 10V JP3 GND TP3 Shutdown Input 1 VIN1 TP1 JP1 C1 10uF 10V JP2 GND TP2

Circuit 2 Circuit 2 U2 TC1017-1.8VCT VOUT VOUT 5 NC 4 GND 3 GND TP18 JP10 JP11 JP12 C12 10uF 6.3V C11 4.7uF 6.3V C10 1uF 6.3V R2 100k C9 1uF 10V C8 4.7uF 10V C7 10uF 10V JP9 JP8 GND TP8 TP7 VIN2 TP6 VIN2 JP7 Shutdown Input 2

FIGURE 1-1: TC1016/TC1017 LDO Evaluation Board Schematic (LDO Circuits).

1.2 WHAT IS THE TC1016/TC1017 LDO EVALUATION BOARD?

The TC1016/TC1017 LDO Evaluation Board is a tool that allows the user to evaluate fixed-voltage versions of both the TC1016 (80 mA LDO) and the TC1017 (150 mA LDO) devices in the 5-pin SC-70 and SOT-23 packages. Fixed voltage values between 1.2V and 5.0V are available for both the TC1016 and TC1017 LDOs.

Input and output capacitor values of 1 F are hard-wired on the board, while onboard jumpers allow you to add additional capacitance values of 4.7 F and 10 F for input and output capacitance for each circuit. Onboard jumpers also provide measurement points for input current and LDO ground current.

Line and load step circuitry are also provided on the board. Onboard jumpers allow you to move the line and load step to either Circuit 1 or Circuit 2. Shutdown input connections are also provided with onboard pull-up resistors so that the device will power-up as soon as the input voltage is provided.

Test points are provided for the LDO input voltage, output voltage, ground and shutdown input connections.

1.3 WHAT THE TC1016/TC1017 LDO EVALUATION BOARD KIT INCLUDES

This TC1016/TC1017 LDO Evaluation Board Kit includes:

• The TC1016/TC1017 LDO Evaluation Board (103-00073)
• TC1016/TC1017 LDO Evaluation Board User's Guide (DS51580)
• TC1016 Data Sheet (DS21666)
• TC1017 Data Sheet (DS21813)

Chapter 2. Installation and Operation

2.1 INTRODUCTION

The TC1016/TC1017 LDO Evaluation Board allows the user to evaluate Microchip's 80 mA (TC1016) and 150 mA (TC1017) Low-Dropout (LDO) regulators. The evaluation board contains two independent LDO circuits that allow the user to evaluate the TC1016 and TC1017 devices in the 5-pin SC-70 and SOT-23 packages. The evaluation board is populated with a TC1017 1.8V output voltage device (SOT-23 circuit) and a TC1017 3.0V output voltage device (SC-70 circuit). Any of the available output voltage values of the devices (1.2V to 5.0V) can be used on this board. Fixed input and output capacitor values of 1.0 μF are hard-wired on the board, while values of 4.7 μF and 10 μF can be selected via jumpers. Line and load step circuitry is also provided.

2.2 FEATURES

The TC1016/TC1017 LDO Evaluation Board has the following features:

• Input voltage range: 2.7V to 6.0V
  • Additional input and output capacitor value selection capability via jumpers (4.7 F and 10 F values)
• Output voltage shutdown via the SHDN inputs
  • Overcurrent protection (device feature)
  • Overtemperature protection (device feature)
  • Line and load step testing capability

2.3 GETTING STARTED

The TC1016/TC1017 LDO Evaluation Board is fully assembled and tested over its input voltage and output current operating range. This board requires the use of an external input voltage source (+2.7V to +6.0V) and an external load (electronic or resistive). The Printed Circuit Board (PCB) design provides cooling for the LDO devices via onboard copper. If the devices are operated with high power dissipation (large input-to-output voltage differential and maximum output current), additional cooling may be required to keep the devices from going into overtemperature shutdown.

The TC1016/TC1017 LDO Evaluation Board contains two evaluation circuits: one for the SC-70 package and one for the SOT-23 package. The board has both positions populated with the TC1017 LDO. Circuit 1 (U1) has the 3.0V output voltage version of the device (TC1017-3.0VLT) in the SC-70 package, while Circuit 2 (U2) has the 1.8V output voltage version (TC1017-1.8VCT) in the SOT-23 package. The TC1016 LDO can be used in either circuit since it has the same pinout in each package.

The LDO circuits are powered independent of each other through separate connectors/test points. The circuitry for evaluating the SC-70 package is referenced on the schematic as Circuit 1, while the circuitry for evaluating the SOT-23 package is referenced as Circuit 2. The ground connections for the board are all common to each other. There are a total of four connection (test) points for ground for the LDO circuits (TP2, TP5, TP7 and TP10).

The line step circuit can be used to provide pulsed input voltages to the LDO circuits. Either LDO circuit can be connected to the line step circuitry by populating a simple jumper post on either JP15 or JP16.

The load step circuit can be used to provide step loads to the output of the LDO circuits. Either LDO circuit can be connected to the load step circuitry by populating a simple jumper post on either JP13 or JP14.

Additional input and output capacitance values can also be added to the LDO circuits by populating jumper posts. Capacitor values of 4.7 F and 10 F are available on both the input and output of the LDO.

All of the connections to the TC1016/TC1017 LDO Evaluation Board are made through surface-mount test points. These test points can be removed with a soldering iron if you want to solder wires directly to the pads on the board.

2.4 TESTING CIRCUIT 1 OF THE TC1016/TC1017 LDO Evaluation Board

2.4.1 Power Input and Output Connections

2.4.1.1 POWERING THE TC1016/TC1017 LDO EVALUATION BOARD

1. Apply the input voltage to test points TP1 (VIN1) and TP2 (GND). Connect the positive side of the input source (+) to TP1 (VIN1). Connect the negative, or return, side (-) of the input source to the GND terminal (TP2). These two test points are located on the upper-left side of the board. The power supply input voltage must be in the specified operating range for the board to operate properly (2.7V to 6.0V).
2. When an input voltage is applied and is within the operating voltage range of the LDO, the LDO output will turn on automatically. The SHDN1 input (TP3) has been pulled up to VIN1, which turns the device on. The LDO output can be turned off by pulling TP3 low. This can be accomplished by connecting TP3 to either TP2 or TP10 (the two nearest ground connection points).

2.4.1.2 APPLYING THE LOAD TO THE TC1016/TC1017 LDO EVALUATION BOARD

1. To apply a load to VOUT1 of the TC1016/TC1017 LDO Evaluation Board, the positive side of the load (+) should be connected to TP4 (VOUT1). The negative side of the load should be connected to TP5 (GND).
2. The maximum output current of the TC1016 is 80 mA, while the maximum output current of the TC1017 is 150 mA. If the output load exceeds these respective levels, the TC1016 and TC1017 will go into Current Limit mode(see device data sheets for more details). If, during the Overload condition, the device junction temperature exceeds the overtemperature limit of 150°C, the output of the LDO will turn off and wait for the junction temperature to cool down before turning the LDO output back on.

2.4.2 Changing Input and Output Capacitor Values of the LDO

The TC1016/TC1017 LDO Evaluation Board comes with 1 F, 4.7 F and 10 F input and output capacitor values. The 1 F input and output capacitor are always connected. The 4.7 F and 10 F input and output capacitor values can be selected by populating jumpers on the board. To select the 4.7 F input capacitor, populate jumper JP3. To select the 10 F input capacitor, populate jumper JP2. The shorting jumper hats provided for Circuit 2 can be used to make these connections. To select the 4.7 F output capacitor, populate JP5. To select the 10 F output capacitor, populate JP6.

2.4.3 Measuring Quiescent Current and Ground Current

As you will see by looking at the TC1016/TC1017 LDO Evaluation Board schematic, Circuit 1 has jumper positions that are in series with the input voltage connection (JP1) to the LDO and in series with the ground connection (JP4). These jumper positions have been populated with jumper hats to complete the input voltage and ground path connections. If you would like to measure the quiescent current or ground current of the LDO, the jumper hats can be removed to allow for multi-meters to be placed in series with these connections in order to measure input current (JP1) and LDO ground current (JP4).

2.5 TESTING CIRCUIT 2 OF THE TC1016/TC1017 LDO Evaluation Board

2.5.1 Power Input and Output Connections (Refer to Figure 2-1)

2.5.1.1 POWERING THE TC1016/TC1017 LDO EVALUATION BOARD

1. To apply the input voltage to TP6 (VIN2) and TP7 (GND), connect the positive side of the input source (+) to TP6 (VIN2) and connect the negative, or return, side (-) of the input source to TP7 (GND). These two test points are located in the upper-right side of the board. The power supply input voltage must be in the specified operating range for the board to operate properly (2.7V to 6.0V).
2. When input voltage is applied and is within the operating voltage range of the LDO, the LDO output will turn on automatically. The SHDN2 input (TP8) has been pulled up to VIN2, which turns the device on. The LDO output can be turned off by pulling TP8 low. This can be done by connecting TP8 to either TP7 or TP10 (the two nearest ground connection points).

2.5.1.2 APPLYING THE LOAD TO THE TC1016/TC1017 LDO EVALUATION BOARD

1. To apply a load to VOUT2 of the TC1016/TC1017 LDO Evaluation Board, the positive side of the load (+) should be connected to TP9 (VOUT2). The negative side of the load should be connected to TP10 (GND).
2. The maximum output current of the TC1016 is 80mA and the maximum output current of the TC1017 is 150 mA. If the output load exceeds these respective levels, the TC1016 and TC1017 will go into Current Limit mode (see device data sheets for more details). If, during the Overload condition, the device junction temperature exceeds the overtemperature limit of 150^ C, the output of the LDO will turn off and wait for the junction temperature to cool down before turning the LDO output back on.

2.5.2 Changing Input and Output Capacitor Values of the LDO

The TC1016/TC1017 LDO Evaluation Board comes with 1 F, 4.7 F and 10 F input and output capacitor values. The 1 F input and output capacitors are always connected. The 4.7 F and 10 F input and output capacitor values can be selected by populating jumpers on the board. To select the 4.7 F input capacitor, populate jumper JP9. To select the 10 F input capacitor, populate jumper JP8. The shorting jumper hats provided for Circuit 1 can be used to make these connections. To select the 4.7 F output capacitor, populate JP11. To select the 10 F output capacitor, populate JP12.

2.5.3 Measuring Quiescent Current and Ground Current

As you will see by looking at the TC1016/TC1017 LDO Evaluation Board schematic, Circuit 2 has jumper positions that are in series with the input voltage connection (JP7) to the LDO and in series with the ground connection (JP10). These jumper positions have been populated with jumper hats to complete the input voltage and ground path connections. If you would like to measure the quiescent current or ground current of the LDO, the jumper hats can be removed to allow for multi-meters to be placed in series for these connections in order to measure input current (JP7) and LDO ground current (JP10).

2.6 USING THE LINE AND LOAD STEP CIRCUITRY

Line and load step circuitry has been provided on the TC1016/TC1017 LDO Evaluation Board to make line and load step testing easy. The following sections will describe how to connect to the line and load step circuits, as well as how to connect those circuits to the LDO input or output for testing.

2.7 LINE STEP TESTING

2.7.1 Powering the Line Step Circuitry (Refer to Figure 2-1)

The line step circuitry on the board requires three power supplies and one input signal. The first power supply is the high point of the step voltage to be applied to the LDO input. The second power supply is the low point of the step voltage, while the third power supply is the bias voltage for the MOSFET driver that turns the gates of the external transition FET on and off.

The high value of the input voltage step should be connected to test points TP15 and TP16. The positive voltage is connected to TP16 and the ground lead should be connected to TP15. This voltage represents the high value of the input step voltage and should not exceed 6.0V. These test points are located in the lower-left corner of the board.

The low value of the input voltage step should be connected to TP14 and TP15. The positive voltage is connected to TP14, while the ground lead should be connected to TP15. This voltage represents the low value of the input step voltage. These test points are located in the lower-left corner of the board.

The bias voltage for the MOSFET driver should be connected to TP11 and TP12. The positive voltage is connected to TP11, while the ground lead is connected to TP12. These test points are located in the middle of the bottom edge of the board. The bias voltage for the driver should be above 5V. A bias voltage of 10V is suggested to provide good gate drive to the transition MOSFETs. The bias voltage to the driver should not exceed 15V.

TC1016/TC1017 LDO Evaluation Board 102-00073 TP5 JP8 JP5 JP12 JP11 TP8 JP13 JP9 JP8 TP7 TP4 C6 C5 C4 C12 C11 C10 U2 D9 C8 C7 JP7 TP6 TP1 C2 C1 C1 U1 JP1 TP18 TP9 C2 JP16 D1 R10 R12 R9 R11 C19 C14 C16 C17 C13 C18 R18 R17 TP14 TP15 TP16 TP13 TP12 TP11 TP17 TP18 MICROCHIP

FIGURE 2-1: TC1016/TC1017 LDO Evaluation Board Assembly Layout.

2.7.2 Applying the Input Signal to the Line Step Circuit (Refer to Figure 2-1)

The input signal to the line step circuit controls the pulse voltage waveform that is applied to the input of the LDO. A pulsed rectangular waveform should be used as the input signal to the line step circuitry. This waveform can be generated easily using any pulse/function generator. The positive voltage of the input signal should be connected to TP13. The ground lead of the pulse input signal can be connected to TP12 or any other ground on the board. An input signal level of anywhere between 3.0V and the bias voltage to the MOSFET driver is acceptable.

Varying the duty cycle and frequency of the input signal for the line step pulse will control the duty cycle and frequency of the step voltage that is applied to the LDO.

Note: The step voltage waveform generated by the line step circuitry can be monitored by connecting an oscilloscope to either JP15 or JP16. The pins of JP15 and JP16 that are connected to MOSFET Q1 will show the step waveform that is being generated by the line step circuitry. This voltage should be monitored before connecting the line step voltage to the LDO input in order to ensure that the desired voltage step is being generated.

2.7.3 Connecting the Step Voltage to the LDO Input (Refer to Figure 2-1)

The step voltage being generated by the line step circuitry can be connected to Circuit 1 and Circuit 2 by using jumpers JP15 and JP16, respectively.

• If you want to apply the line step voltage to Circuit 1, populate JP15. This will connect the output of the transition MOSFET Q1 to the input voltage VIN1 of Circuit 1.
• If you want to apply the line step voltage to Circuit 2, populate JP16. This will connect the output of the transition MOSFET Q1 to the input voltage VIN2 of Circuit 2.

It is always a good idea to monitor the input voltage step waveform before applying it to the LDO circuitry in order to ensure that the voltages are at the proper levels.

An example of a line step setup is shown below:

• Low-Level Bias Voltage = 3.3V (connect to TP14 and TP15 (GND))
• High-Level Bias Voltage = 5.0V (connect to TP16 and TP15 (GND))
• Bias Voltage for MOSFET Driver = 10.0V (connect to TP11 and TP12 (GND))
• Input Signal for Line Step Pulse = 0.0V to 3.0V pulse, 50% duty cycle, 50 Hz (connect to TP13 and TP12 (GND))

2.8 LOAD STEP TESTING

The load step circuitry supplied on the board consists of a N-channel MOSFET and two load resistors (2.0 ohms each).

2.8.1 Supplying the Input Signal to the Load Step Circuit

The input signal for the load step circuit is connected to TP17 (positive side) and TP18 (ground lead). This signal should be supplied by a function-generator that allows you to vary the amplitude, frequency and duty cycle of the signal.

The frequency and duty cycle of the load step applied to the LDO is controlled by the input signal that turns the gate of MOSFET Q2 on and off. The frequency and duty cycle of the load step can be adjusted to meet the requirements of your system.

The amplitude of the input signal will control the amplitude of the load step. Start with the amplitude of the input signal set to 1.0V. Monitor the input signal with an oscilloscope and use it as your trigger waveform.

The load step amplitude can be monitored by using an oscilloscope current probe. In order to measure the load step being applied to Circuit 1, connect the pins of JP13 together using a jumper wire (make a loop of wire big enough to allow for the passage of the oscilloscope probe). Use the current probe of the oscilloscope to measure the current flowing through the jumper wire. Continue to increase the voltage amplitude of the input signal until you see a step load of current. The input amplitude will usually be above 2.5V before a step load is seen. As you continue to increase the input signal amplitude, the step load amplitude will also increase.

The load step amplitude can also be monitored by using an oscilloscope to look at the voltage across the parallel resistor combination of R13 and R14. R13 and R14 are 2.0 ohm resistors, so an 80 mA load step will create an 80 mV voltage step across this resistor pair.

The step load can be applied to Circuit 2 by connecting the pins of JP14 together with a jumper wire and repeating the above process.

If a DC offset for the load step is required (you want to perform a load step from 20 mA to 60 mA), a DC load can be attached to the output voltage connections of the LDO circuit. This should be used to provide the low-end of the load. The step load circuit can then be used to provide the remaining load to the LDO.

NOTES:

Appendix A. Schematic and Layout

A.1 INTRODUCTION

This appendix contains the following schematics and layouts for the TC1016/TC1017 LDO Evaluation Board.

• Board Schematic
• Board Outline
• Board – Top Layer
• Board – Bottom Layer

A.2 BOARD SCHEMATIC – PAGE 1

A B C D 1 2 3 4 Circuit 1 U1 TC1017-3.0VLT VIN1 JP1 C1 10uF 10V C2 4.7uF 10V C3 1uF 10V JP2 GND TP2 Circuit 2 VOUT1 C6 10uF 6.3V C5 4.7uF 6.3V C4 1uF 6.3V JP5 JP4 GND TP5 C6 10uF 6.3V C5 4.7uF 6.3V C4 1uF 6.3V JP6 JP5 GND TP9 VOUT2 C12 10uF 6.3V C11 4.7uF 6.3V C10 1uF 6.3V JP11 JP10 GND TP18 TP8 TP7 C5 TIP2 C6 TP4 TP5 TP6 TP7 C7 10uF 10V C8 4.7uF 10V C9 1uF 10V JP9 GND TP8 TP9 C12 (DC) C11 (DC) C10 (DC) C10 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) C12 (DC) TIP2/TC1017/Evaluation Board Size A3 Number 103-00073 Rev Date 22/Julus 5 Sheet 1 of 2 A B C D A 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 TIP2/TC1017/Evaluation Board

A.3 BOARD SCHEMATIC – PAGE 2

Bias Voltage for MOSFET Driver Input Signal for Line Step Pulse B130L D2 R12 10k TC4427_S08 U5:A OUTA NA 10uF, 25V C13 10uF, 25V C14 22uF, 10V C15 10uF 10V Bias voltage for Low Point of the Line Step JP15 JUP16 JUP15 JUP16 JUP15 IRF7309 Jumpers to connect the line step to the input of the LDO circuits. IRF7309 has an N-channel FET for FET1 and a P-channel FET for FET2 Jumpers to connect the Load step to the output of the LDO circuits. Input Signal for Load Step Pulse Q1 S1 D1 8 C1 D1 7 S2 D2 6 Q2 D2 5 C17 C16 22uF, 10V 10uF 10v 10V C18 IRLR3303 R11 R9 10k 100 R13 R14 2ohms 2ohms R17 R18 2.0 C18 1000pF D Q2 IRLR3303 R13 2ohms 2ohms TP17 TP18 A B C D A B C D Title TC1016/TC1017 Evaluation Board Size A3 Number 103-00073 Rev 2 Date 22AUGA5 Drawn by JLD Filename Sheet 2 of 2

A.4 BOARD - ASSEMBLY DRAWING

TC1016/TC1017 LDO Evaluation Board: 102-00073 MICROCHIP NOTES 1. BOARD MATERIAL FR4 OR EQUIVALENT 8.062" THICK. 2. LAYERS OF 1oz. COPPER 3. SOLDERMASK ON BOTH SIDES WITH HASL ON EXPOSED COPPER. 4. WHITE SILKSCREEN ON TOP LAYER. Drill Table Hole Dia (inch) Symbol Quantity Plated 0.018 + 18 Yes 0.042 × 32 Yes

A.5 BOARD - TOP LAYER + SILK-SCREEN

TC1016/TC1017 LDO Evaluation Board 102-00073 TP5 JP6 JP5 JP12 JP11 TP8 JP4 JP9 JP8 TP7 C6 C5 C4 C12 C11 C10 U2 C9 C8 C7 JP7 TP6 TP1 JP1 C2 C1 C3 U1 R1 TP2 JP15 TP10 TP9 Q2 JP16 Q1 D2 R12 D1 R9 R11 C15 C16 C14 C17 U5 C13 C18 R18 R17 TP14 TP15 TP16 TP13 TP12 TP11 TP17 TP18 MICROCHIP

A.6 BOARD - BOTTOM LAYER

10V-0003 EVA-S

NOTES:

Appendix B. Bill Of Materials (BOM)

TABLE B-1: BILL OF MATERIALS (BOM)

Qty	Reference Description	Supplier Part Number
4 C1	C7, C15, C16 10	UF 10V CERAMIC 1206 X5R Panasonic	®	ECJ-3YB1A106M
2 C2	C8 4.7 UF 10V C	ERAMIC 1206 X5R Panasonic	ECJ-3YB1A475M
2 C3	C9 1 UF 10V C	RAMIC 0603 X5R Panasonic	ECJ-1VB1A1	05K
2 C4	C10	CER 1.0UF 6.3V 20% X5R 0603	Murata ® Electronics	GRM188R60J105MA01D
2	C5, C11	4.7 UF 6.3V CERAMIC 0805 X5R	Panasonic	ECJ-2FB0J475M
2	C6, C12	CER 10 UF 6.3V 10% X7R 1206	Murata Electronics	GRM31CR70J106KA01L
1	C13	CERAMIC 10 UF 25V X5R 1206	Panasonic	ECJ-3YB1E106M
2	C14, C17	TANT 22 UF 10V 20% SMD	Kemet Electronics	T491A226M010AS
1	C18	1000 PF 50V CERM CHIP 0805	Panasonic	ECJ-2VB1H102K
2 D1	D2 SCHOTTKY	A 30V SOD123 Diodes Inc	B130LAW-7-F
16	JP1, JP2, JP3,JP4, JP5, JP6,JP7, JP8, JP9,JP10, JP11,JP12, JP13,JP14, JP15,JP16	CONN HEADER .100 SINGL STR 2POS	Sullins ElectronicCorporation	PTC36SAAN
1 Q1	IRF7309		InternationalRectifier	IRF7309
1 Q2	IRLR3303		InternationalRectifier	IRLR3303
2 R1	R2 100 KOHM 1/	16W 1% 0603 SMD Panasonic	ERJ-3EKF10	03V
1	R18	2.00 OHM 1/8W 1% 0805 SMD	Rohm	MCR10EZHFL2R00
3	R11, R12, R17	10.0 KOHM 1/8W 1% 0805 SMD	Rohm	MCR10EZHF1002
2	R9, R10	100 OHM 1/8W 1% 0805 SMD	Rohm	MCR10EZHF1000
2	R13, R14	2.0 OHM 1W 5% 2512 SMD	Panasonic	ERJ-1TYJ2R0U
4 SJ	SJ1, SJ2, SJ3,SJ4	Shorting Jumpers	Sullins ElectronicCorporation	STC02SYAN
18	TP1, TP2, TP3,TP4, TP5, TP6,TP7, TP8, TP9,TP10, TP11,TP12, TP13,TP14, TP15,TP16, TP17,TP18	TEST POINT COMPACT SMT	KeystoneElectronics®	5016
1 U1	TC1017-SC70-5, 3.0V Output		MicrochipTechnology Inc.	TC1017-3.0VLTTR
1 U2	TC1017-SOT23-5, 1.8V Output		MicrochipTechnology Inc.	TC1017-1.8VCTTR
1 U5	MOSFET DVR 1.5A DUAL 8-SOIC		MicrochipTechnology Inc.	TC4427EOA713

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08/24/05