Power Matters

Microsemi Corporation Jefferies 2013 Global Technology, Media & Telecom Conference New York City May 8, 2013

© 2013 Microsemi Corporation.

Power Matters

This presentation contains projections or other forward-looking statements regarding future events or the future financial performance of Microsemi Corporation.

We wish to caution you that these statements are only predictions and that actual events or results may differ materially. We refer you to all of the documents that the company filed with the Securities and Exchange Commission. Please pay special attention to the Company’s most recent Form 10-K and subsequent Form 10-Qs.

These documents contain and identify important factors that could cause the actual results to differ materially from those contained in our projections or forward-looking statements.

Disclaimer

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About Microsemi Corporation (Nasdaq: MSCC)

Global provider of semiconductor solutions for applications focused on delivering power, reliability, security and performance. High-value, high barrier-entry markets:

– Communications – Defense & Security – Aerospace – Industrial

FY 2012 Revenue: $1 billion

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Corporate headquarters in Aliso Viejo, CA

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Strengthening Financial Results

(Non-GAAP, $MM)

Operating Income EBITDA

Net Sales Gross Profit

4

$-

$200

$400

$600

$800

$1,000

FY07 FY08 FY 09 FY 10 FY11 FY12 $-

$100

$200

$300

$400

$500

$600

FY07 FY08 FY 09 FY 10 FY11 FY12

$-

$50

$100

$150

$200

$250

FY07 FY08 FY 09 FY 10 FY11 FY120

50

100

150

200

250

FY07 FY08 FY 09 FY 10 FY11 FY12

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A Model of Managed Growth

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2012 2006 2001

Small Signal Transistors Medium Signal Transistors Inverters LDOs

2001 SAM: $500M

2006 SAM: $850M GaAs Diodes RF Power Amplifiers Power Switching Small Signal Transistors

2012 SAM: $5.2B Network Timing & Sync Power-over-Ethernet Voice Line Circuits WLAN Power Amplifiers FPGAs/SoCs Anti-tamper Board Level Systems DC/DC

– ICs – Converters – Subsystems

GaAs Diodes LED Backlighting RadHard

– MOSFETS – Hybrids – Transistors

Consistently Driving SAM Expansion

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Macro Growth Drivers

Ban

dwid

th

4G Deployment Bi-directional Data

High Definition Media The Cloud

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Information Assurance Counterfeiting

Anti-tamper

Transportation Power Generation

Energy Management

Secu

rity

Elec

trifi

catio

n

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Going To Market – The Solution Engagement

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FPGA

ASIC

RFIC/MMIC

PMIC

Module

Timing Cisco

Lockheed

Siemens Com

mun

icat

ions

Aer

ospa

ce

Indu

stria

l

Def

ense

and

Sec

urity

Leve

rage

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Real Customers and Real Programs

Engine Control and System Management FPGA, HV MOSFET, Analog ASIC, Power Module, TVS

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Server System and Power Management Customizable SoC, DC-DC, HV MOSFET

Basestation and Backhaul Systems IEEE 1588/SyncE, PLL, FPGA

Power Bus and System Management FPGA, MOSFET, Analog ASIC, Power Module, TVS

Implantable Medical Device Systems Ultra Low-Power Radio, HV IGBT/MOS FET, FPGA

Hi-Temp Down-Hole Drilling Solutions FPGA, HV FET & IGBT, HV Power Module

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Microsemi Market Focus

9 Based on FQ2 2013 revenue

Wireless Backhaul Base Station Routing & Switching Networking Access & CPE Wireless Terminal

Communications 27% of Revenue

Defense & Security 34% of Revenue

Aerospace 19% of Revenue

Industrial 20% of Revenue

Military Communication Military Aircraft Unmanned Vehicle Information Assurance Security Scanners Anti-Tamper

Commercial Air Engine Control Avionics Actuation Space Power Delivery Payload Electronics Launch Systems

Industrial Control Medical Devices Alternative Energy Hybrid Vehicles SEMI Cap Equipment Machine to Machine

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Communications Market

27% of Revenue

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Addressing Higher Growth Communications Markets

Source: Databeans 11

11% CAGR Service Providers Routers & Switches

[2012 – 2016]

17% CAGR OTN Infrastructure Equipments [2011-2016]

14% CAGR Ethernet Mobile Backhaul

[2012 – 2016]

Broadband Access & Metro Core & Storage User / Mobile

$0

$1,000

$2,000

$3,000

$4,000

$5,000

$6,000

$7,000

$8,000

$9,000

CY11 CY12 CY13 CY14 CY15 CY16

Rev

enue

(US$

M)

Ethernet MBH gateways SONET/SDH and WDMMicrowave radio--dual Ethernet/TDM Ethernet MBH routersMicrowave radio--Ethernet

$0

$5,000

$10,000

$15,000

$20,000

$25,000

CY11 CY12 CY13 CY14 CY15 CY16

Rev

enue

(US$

M)

IP edge routers IP core routers Carrier Ethernet switches

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

$-

$2,000

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$18,000

$20,000

CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16

Rev

enue

$U

SM)

SONET/SDH WDM OTN

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Leadership Position Amongst Competitors

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Performance

Feat

ures

, Int

egra

tion

& F

lexi

bilit

y

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Aerospace Market

19% of Revenue

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Avionics 11% CAGR 2011-2016 Higher speed, wider bandwidth Increased connectivity Size, weight, power Integration

Electrical Power Systems 14% CAGR 2011-2016 Power Optimisation Reliability, Safety, Cost Power Quality & Thermal Control Eco friendly, Zero Emissions

Electrification Accelerating Growth Prospects

14 Source: Frost & Sullivan

Revenue in US$, Billions

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Growing Content & Capabilities

RF & Microwave Systems Navigation & Guidance Systems Satcom X-Band weather radar Communication/navigation radios Integrated surveillance

Engine Systems & Controls FADEC Engine start and power conversion, and distribution systems Engine & APU Controls Power system monitors Fuel management systems

Cabin Management Systems Cabin lighting and control Air conditioning and management Systems Flight entertainment systems

Cockpit Avionics Flight control computer Data management systems Primary and secondary flight control Health monitoring systems Crew interface systems

Actuation Systems Primary actuator systems Secondary actuation systems High lift control and monitoring Landing systems Wheels and braking systems De-icing systems

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020406080

100120140160

Commercial Sats Civil Sats Military Sats University Sats

Number of Launches Per Year World Wide

Catering to a Growing Satellite Market There will be more satellites for launch during the next 10 years than at any time during the past two decades.

Source: Teal Group

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Satellite Content MSCC: Total Solution

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Technology Application Product $ Content

Power Power Supply, Distribution, Conditioning

Diodes 220,000

Power Power Supply, Distribution, Conditioning

Transistors 80,000

Power Power Supply, Distribution, Conditioning

RadHard Mosfets 120,000

Power Power Supply, Distribution, Conditioning

Hybrids 100,000

Mixed-Signal Bus Control High Side Drivers 280,000

Mixed-Signal Bus Control Telemetry ASICs 325,000

Mixed-Signal Bus Control Digital Gate Arrays 100,000

SoC AOC & TT&C FPGAs 400,000 SoC PIU FPGAs 60,000

PMG Power Supply, Control

DC/DC Converters 320,000

PMG SSPA Power Supply SSPAs 750,000

Total: $ 2,750,000

Source: Company Data, Commercial GEO Telecom Satellite Electrical Power System

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Defense & Security Market

34% of Revenue

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Worldwide interconnection of critical data and systems of all types • DoD weapons and systems • Navigation and timing • Electric grid, transportation and refining • Banking, finance, medical

Evolution of unmanned systems • Using robotics, sensors, machines and automation

Technology of security threats not static—evolving quickly. • Demands flexible / programmable architectures

Expanding U.S. foreign military sales. Risk of loss of critical technology. • UAE, Saudi, Turkey, Korea, more

Key Defense & Security Market Drivers

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Defense & Security Market TAM & SAM

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FPGA’s & ASICS – components, PMG-PHX+WL Complex Assemblies, RFIS - systems

0

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2012 2013 2014 2015 2016

TAM

FPGA & ASICS Integrated Solutions

Systems & Subsystems

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2012 2013 2014 2015 2016

SAM

FPGA & ASICS Integrated Solutions

Systems & Subsystems

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Industrial Market

20% of Revenue

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Global economic conditions and competition forcing many into redesign for differentiation

Increased international standards to

ensure quality and high reliability

Application areas such as functional safety on the rise to protect life and expensive operating costs

Concerns over IP protection and malicious attacks driving embedded security measures

Industrial Trends Favor Microsemi Position

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Market Sub-segment 2016 CAGR

Energy 13.7%

Factory Automation 11.1%

Building Automation 8.8%

Business Automation 3.6%

Test, Scientific, Measurement 3.6%

Source: IMS

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Deployment Examples at Industrial Leaders

Factory / Building Automation • PLC controller • Servo motor control • Motor shaft wear sensor • Elevator motor control • Industrial laser • Safety laser scanner controller • Gas flow meter • Utility power service controller

Business Automation

• Point of sale terminal • Touch screen display controller • Toll tag reader • RFID reader

Test, Scientific and Medical • Seismic data recorder • Industrial network tester • Blood analyzer • Implant telemetry • LCD monitor • Purification system • Mobile X-Ray • Patient monitoring

Energy

• Inverters – PV, wind and automotive

• Battery chargers • Battery cell tester • Industrial LED lighting

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Financial Strength / Target Model

FY12 FY13

Q2 Q3 Q4 Q1 Q2

Net Sales 249.3 259.2 263.1 247.6 235.3

Gross Profit 137.0 145.6 150.4 142.6 133.5

Gross Margin 55.0% 56.2% 57.2% 57.6% 56.7%

Operating Income 54.9 60.7 64.5 56.7 50.0

Operating Margin 22.0% 23.4% 24.5% 22.9% 21.2%

EBITDA 63.2 67.6 71.5 63.7 57.2

Net Income 40.3 48.3 51.8 45.0 38.9

Diluted EPS 0.46 0.55 0.58 0.50 0.43

Target Model

Revenue Growth 15%

Gross Margin 60%

Operating Margin 30%

Note: Non-GAAP, amounts in millions except EPS.

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Thank you