COMPANY CONFIDENTIAL

International Rectifier

May/June 2014

Statement of Caution Under the Private Securities Litigation Reform Act of 1995

This Investor Presentation contains “forward-looking statements” within the meaning of the Private Securities

Litigation Reform Act of 1995. These statements relate to expectations concerning matters that (a) are not

historical facts, (b) predict or forecast future events or results, or (c) embody assumptions that may prove to have

been inaccurate. These forward-looking statements involve risks, uncertainties and assumptions. When we use

words such as “believe,” “expect,” “anticipate” or similar expressions, we are making forward-looking statements.

Although we believe that the expectations reflected in such forward-looking statements are reasonable, we cannot

give readers any assurance that such expectations will prove correct. The actual results may differ materially from

those anticipated in the forward-looking statements as a result of numerous factors, many of which are beyond our

control. Important factors that could cause actual results to differ materially from our expectations include, but are

not limited to, the factors discussed in the sections entitled “Risk Factors” and entitled “Critical Accounting Policies

and Estimates” within “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in

our filings with the Securities and Exchange Commission, including our most recent reports on Form 10-K and 10-

Q. All forward-looking statements attributable to the Company are expressly qualified in their entirety by the factors

that may cause actual results to differ materially from anticipated results. Readers are cautioned not to place

undue reliance on these forward-looking statements, which reflect our opinion only as of the date hereof. We

undertake no duty or obligation to revise these forward-looking statements. Readers should carefully review the

risk factors described in this document as well as in other documents we file from time to time with the Securities

and Exchange Commission.

2

Our Strategy

1. Leadership in core Power Management technologies

• Benchmark LV- and MV-MOSFET and IGBT process technology

• Digital Power Management

– CHiL controllers + benchmark LV MOSFETs

• Benchmark industrial IGBTs for Variable Speed Motion

• Automotive grade IGBTs for H(EV) drive train technology

• GaN-on-Si – disruptive power switching technology

2. Efficient and flexible manufacturing and supply chain

• Front-end model moving to 50% wafers sourced externally

• Back-end model moving to 75% sourced externally

3. Strategic alignment and partnership with Tier 1 OEMs, ODMs, and Distributors

3

Revolutionary

GaN Technology

Key Technologies

Low and mid voltage MOSFETS

Industrial

Consumer & Computing

Power Supplies

Higher efficiency

• Smaller footprint

• Lower system cost

• Strong IP portfolio

• Engagements with tier one

customers for early

adoption

High Voltage IGBTs and ICs

Motion Control

Appliances

Industrial

Power Modules for

Appliance and Industrial

Digital Power Control

Servers

High Performance Computing

Digital Controllers

Automotive IGBTs

COOliRIGBT™

COOliR2Bridge

™

4

HiRel

Major End Market Segments

•Industrial

•Appliances

•Lighting

•Audio/Displays

•Alternative Energy

•Servers & Storage

•Notebooks & Desktops

•Netcom

•Gaming

•Consumer Broadband

•Satellites

•Commercial Aviation

•Military and Defense

•Medical Devices

•Heavy Duty Industrial

•Automobiles

•Trucks and Buses

•Hybrids

•Electric Vehicles

*Source: Company Filings. TTM is defined as trailing twelve months

Automotive

Products

Q3FY14 $38m

TTM*: $147m

Energy Saving

Products

Enterprise

Power

HiRel

Power

Management

Devices

5

Q3Y14 TOTAL COMPANY

REVENUE*

$269m

Q3FY14 $54m

TTM*: $193m Q3FY14 $32m

TTM*: $127m Q3FY14 $48m

TTM*: $197m

TTM TOTAL COMPANY

REVENUE*

$1.086b

Q3FY14 $97m

TTM*: $410m

HiRel Auto

6

Power Management Devices Business Unit

Power Management Devices

LV- and MV MOSFETs

EP ESP

Key Differentiators • Leading performance MOSFETs

• Strong brand recognition

• Industry reputation for quality

• Broad product portfolio

• Widest range of packages up to

250V

Broad Portfolio of Discrete Products Targeting

Multiple Market Segments

7

Industrial Power Supply Consumer/Data

Processing

Powering efficiency across multiple market segments

Quarterly Revenue ($M)

111

74 81

10491

83 85

108 102 103 97

Sep.11

Dec.11

Mar.12

Jun.12

Sep.12

Dec.12

Mar.13

Jun.13

Sep.13

Dec.13

Mar.14

IR MOSFET Market Leadership

8

Top 10 Suppliers of Power MOSFETs - 2012

Rank

Company 2012 2011

1 1 International Rectifier 2 5 Renesas Electronics Corporation

3 2 Toshiba

4 3 Infineon Technologies

5 4 Fairchild Semiconductor

6 6 Vishay Intertechnology

7 7 STMicroelectronics

8 9 Alpha & Omega Semiconductor

9 8 ON Semiconductor

10 10 NXP

IHS iSuppli | March 2012

IR maintained its

#1 position as

supplier of power

MOSFETs in 2012

with 11% of the

$5.9B market

according to IHS

iSuppli

9

HiRel

PMD

ESP

Auto

Enterprise Power

Digital Power Control

Enterprise Power Business Unit

EPBU Value Proposition

Enable the adoption of high-performance digital DC-DC power by

delivering End-to-End solutions vs. competition that are:

10

Higher Efficiency + Smaller Size

Easier to Use + Fast Time to Market

Competitive in Cost + Reduced BOM

3631 32 33

38

29

20

2932 33 32

Sep.11

Dec.11

Mar.12

Jun.12

Sep.12

Dec.12

Mar.13

Jun.13

Sep.13

Dec.13

Mar.14

Quarterly Revenue ($M)

Servers High Performance

Computing

Communications

IR Digital Power Strategy: Complete End-to-End DC-DC Solution

11

Industry’s Leading Digital Power (CHiL) Controllers

+ Benchmark Performance MOSFETs/PowIRstages

Digital ICs are “catching

up” with analog ICs, and

now many devices

simply incorporate them

without question. This is

due to digital reaching

“cost parity” with analog

solutions.

The Darnell Group

Digital Power: Moving up the S-Curve

12

The Darnell Group, 2011

Initial Target Market – Powering Processors

• Solutions for Graphics

processors (GPU) from

ATI (AMD) and Nvidia.

• Solutions for leading

Server and Desktop

CPU’s from Intel, AMD

Digital Communication • Real time monitoring of

currents, voltages and faults

• Configuration of controllers to

meet system requirements

• Communication between the

system/CPUs and the power

management chips

Digital Control

• Cost effective

• Easy to design and use

• IR has the lowest quiescent

power on par with Analog

Controllers

13

EPBU Target Segments: $1.1B Today to ~$2B in CY 2014

SAM = $520M in 2012 to

$570M in CY 2014

SAM = $84M in 2012 to

$100M in CY 2014

SAM = $27M in 2012 to

$182M in CY 2014

SAM = $101M in 2012 to

$120M in CY 2014

SAM = $405M in 2012 to

$800M in CY 2014

14

Rapid Adoption of Digital Power Management in Last Two Years

Graphics Cards:

addressable content

about $8

High Performance

Desktops: addressable

content about $8

High Performance

Computing: addressable

content about $1-$2/ board

Servers: up to $40-$50 of

addressable content Communications: up

to $10 of addressable

content

15

16

PMD

EP Auto

Energy Saving Products

High Voltage IGBTs and ICs

Energy Savings Products Business Unit

HiRel

Enabling Technology and Products to Help Save Energy in

Consumer and Industrial Applications

Appliances

Consumer

Industrial

17

Quarterly Revenue (M)

Key Differentiators

• Industry-leading analog HVICs and IGBT

platforms

• Industry-leading energy saving design

expertise

• Silicon packaging technology delivering

superior system performance

Key Products

• Digital Control ICs

• High-Voltage ICs

• IGBTs

• IRAM Integrated Power Modules

76

59 5751

4436

4452 51 47

54

Sep.11

Dec.11

Mar.12

Jun.12

Sep.12

Dec.12

Mar.13

Jun.13

Sep.13

Dec.13

Mar.14

High Voltage IGBT and IC Technologies

IGBTs

Digital controller & High-Voltage IC

Intelligent Power Module (IRAM)

18

uIPM New

Market

Segment

19

Key factors

• 2015 market forecast for the

variable speed motor control is

3x of 2010 volumes

• The inverterization of small

appliances drives the demand for

compact and economical power

stage solutions.

Source: IHS iSuppli

Unit Shipments ('000)'12-'17

CAGR

% with Inverter-based VSD

Average VSD Penetration across MHA 23.30% 44.50% 13.80%

Inverter-based VSD MHA Shipments

Washing Machines 21.90%

Fridges/Freezers 23.00%

Dishwashers 21.90%

Room Air Conditioners 16.70%

Microwave Ovens 20.60%

World Total VSD MHA Shipments (kU) 98,477 239,575 19.50%

Source: IHS Oct-13

World Market for Inverter-based Variable Speed

Control MHAs by Type

2012 2017

IR’s IGBT and HVIC Technology Enabling Market

Adoption of Variable Speed Motors

20

Power Modules – New Competitive Benchmark

600V

3-Phase

Driver

HVIC

VCC

HIN1

HIN2

HIN3

LIN1LIN2

LIN3

FAULT

ITRIPEN

VB1 VB2 VB3

V+

VSS

U, VS1

V, VS2

W, VS3

RCIN

V-

COM

The Advantage

• Simpler

• Smaller

• No Heat Sink

• Lower Cost

600V

3-Phase

Driver

HVIC

VCC

HIN1

HIN2

HIN3

LIN1LIN2

LIN3

FAULT

ITRIPEN

VB1 VB2 VB3

V+

VSS

U, VS1

V, VS2

W, VS3

RCIN

V-

COM

Micro Inverter for Solar Conversion

Motor Drive variable speed applications

for light loads 20W-250W for example in:

Pumps

Compressors

Fans

Existing system:

91 component count IR’s new system:

31 component count

: Enabling Smaller Size and Lower Cost

21

22

Automotive

HiRel

PMD

EP

ESP

Automotive Products Business Unit

23

Attractive Long-Term Growth Market for IR

23

*Source: iSuppli Worldwide Power Management Semi Shipment

Forecast, Q4 2012

Quarterly Revenue ($M)

Driven by:

• Increasing Vehicle “Electrification”

− Projected 14% CAGR for Automotive Power

MOSFETs from 2012 through 2015*

− Projected 10% CAGR for Automotive IGBTs from

2012 through 2015*

• Long and stable product life cycle

• High technological and supply

chain entry barriers

2924

29 31 29 2831

36 37 36 38

Sep.11

Dec.11

Mar.12

Jun.12

Sep.12

Dec.12

Mar.13

Jun.13

Sep.13

Dec.13

Mar.14

24

Automotive Electrification Presents Significant

Opportunity For IR

Strong growth for EV

and HEV vehicles

Sales projected to

exceed 5 Million

annual units by 2017*

(H)EV Powertrain Semi

Content expected to

grow 3X by 2015*

Additional Power

Semiconductor

(H)EV drive train

content: ~300$

First generations of

industrial solutions

being replaced by

automotive suitable

performance modules

Significant Growth Opportunity for IR’s IGBT Technology

IGBTs play a large role in EV

powertrains

*Deutsche Bank Report on the EV/HEV Opportunity, 10/9/13

25

Automotive Power Mgmt. Market Drivers

Source: * IRF customer sources and internal estimates ** Yole Automotive Report 2010, *** Semicast January 2010

• Light vehicle production growth*** 2011 2014: 23%

• Automotive semiconductor growth*** 2011 2014: 34%

Content per vehicle

increasing faster

than market

40

270

2011 2014

EV Ku **

840

1910

2011 2014

HEV Ku **

23 35

*

* *

Electric Power

Steering Growths

36 Mill. Vehicles

61 Mill. Vehicles

2013

2016 * Source: Strategy Analytics

Source: Strategy Analytics

IR’s Automotive IGBT Technology Meets Advanced

Requirements of the Next Generation (H)EV Vehicles

IGBT & Diode:

increased Robustness

vs. current technology

(Breakdown Voltage,

Tjmax, Tshortcircuit,

temperature coefficients)

Package Technology :

better Reliability &

Thermal performance

vs. state of the art

(bond wireless,

dual-sided cooling)

Power Modules:

improved form-factors,

scalability, power

density and thermals

for system integration

(dual-cooling, low parasitics)

COOliR2Die™ COOliRIGBT™

COOliRDIODE™

COOliR2Bridge™

COOliR(2)™ addresses (H)EV Requirements on all Integration Levels

Today

26

IR Automotive IGBT Technology and Support Recently

Recognized by the EV Market Segment Leader

27

28

PMD EP

ESP Auto

HiRel

HiRel Business Unit

Power Efficiency Solutions for Mission Critical Applications

29

• RadHard Discretes

• Power Management Modules

• DC-DC Converters

• Satellites

• Military/Defense

• Commercial Aviation

• Medical Devices

• Heavy-Duty Industrial

HiRel: Strategic Asset in IR Portfolio

30

Distinguished Heritage and Respected Brand in HiRel Applications • 30+ years experience

• Over 2,000 successful satellite launches

• Strategic relationships with major aerospace players worldwide

High Margin Channel for IR’s Most Advanced Technology

• Extending IR commercial technology into high value applications

• About 17% of IR revenue with highest margins

Deep Knowledge of Technologies and Processes Required to Meet HiRel

Requirements

• Space, Military/Defense, Commercial Aviation, Medical Devices, Heavy Duty

Industrial

High Structural Entry Barriers

• Reputation and past history are major selection criteria

Quarterly Revenue ($M)

49

44

4950

4847

44

50

48

51

48

Sep.11

Dec.11

Mar.12

Jun.12

Sep.12

Dec.12

Mar.13

Jun.13

Sep.13

Dec.13

Mar.14

31

*High Electron Mobility Transistor

Basic HEMT* Device Structure

What is GaN?

Disruptive GaN Technology to Revolutionize Power

Management

PFC Power Supplies

*Source: Yole Power GaN Report: November 2010

Power Management Power Switching

Industry

Consumer Electronics and Computing

DC/AC

Inverter

DC/DC

Converter

EV/HEV

Inverter

PV Inverter Motor Control UPS

IT & Consumer Automotive

Possible

Applications*

30V 600V 1200V

GaN Power Electronics

Voltage regulator ICs / Drivers

Discrete transistor & diode Discrete Power transistor & diode / power modules / IPM

32

Disruptive GaN Technology to Revolutionize Power

Management

33

HV GaN Based … What the Future Could Look Like

GaN Based Prototype Current 400W

Inverter Board

6A IRAM

with

Heatsink

500V/160mohm

GaN in MCM

without Heatsink

34

GaN : An Industry First…

Model HT-F9750W features an IR Gallium Nitride powered amplifier that delivers pure sound

Samsung 7.1 Channel Home Theater System

Recent Trends

35

$212

$178

$135

$157

$179

$210

$242

$264$281 $282

$297

$317$303

$230$248

$270

$224

$253

$224

$280-

$295E$276 $270 $270 $269

IR Quarterly Revenues ($M)

36

We May be Seeing the Beginning of Recovery (1)

14 Week Quarter

*Source: Company Filings

Sep’11-Mar’13 ―the Great

Recession‖ in Power Semis

Adjusted Operating Income %

37

We May be Seeing the Beginning of Recovery (2)

*Source: Company Filings, June 2013 revenue adjusted to 13 week s

Revenue ($M)

Cash ($M) Gross Margin %

IR Path Forward

38

Fab 3

Fab 2

Fab 11

Fab 10

El Segundo, CA Temecula, CA Newport, Wales

Decommission Planned

Planned production

~$850 million internal

manufacturing capacity

(annualized)

By mid 2015

Savings $11M/yr

CLOSED

End of Mar. 2013

Savings:

$10M/yr

1. Manufacturing Footprint Restructuring

Total Savings: $26M/yr when completed

39

COMPLETE

By June 2013

Savings: $5M/yr

Phase 2

Phase 1

Jun. 12 Sep. 12 Dec. 12 Mar. 13 Jun. 13 Sep. 13 Dec. 13 Mar. 14

2. Significant Operating Expense Reduction

~$40M OPEX Reduction on an Annualized Basis

GOAL: Maintain about $75M Quarterly OPEX Target to

about $300M-$315M in quarterly revenue

$86.4M

$80.7M $77.2M

$75M* R&D

$35.1M

SG&A

$51.3M

R&D

$33.4M

SG&A

$47.3M

R&D

$32.1M

SG&A

$45.1M

R&D

$30M

SG&A

$45M

June 2012 OPEX includes $1.7M in severance.

40

R&D

$28.9M

SG&A

$43.0M

On a 13-week

basis

$71.9M

June 2013 was a 14-week quarter. OPEX was $79 million.

R&D

$32.2M

SG&A

$43.7M

$75.9M

R&D

$32.8M

SG&A

$44.7M

$77.5M

R&D elevated by about $3M primarily due to

engineering builds for new products including

upcoming server launch and other advanced

technologies such as GaN and IGBTs and modules.

R&D

$32.7M

SG&A

$45M

$77.8M

41

3. The Gross Margin Story

1. Increase volume (Revenue)

2. Improving Mix (ESP, EP

and HiRel)

3. Internal/External

manufacturing mix

4. Resizing of Newport 6‖ fab

(est. mid CY15)

5. Start-up of Singapore

advanced wafer thinning

facility

E Recovery primarily led by

increase in utilization, and to a

lessor extent , downsizing of

internal facilities and

improvement in mix.

Financials

42

Q3FY14 Results Summary*

43

*See the Company’s Q3FY14 Results Press Release for the quarter ended March 30, 2014 and Investor Conference Call Script. Both can be found on

the Company's website at www.irf.com.

$269.3 Million Revenue

• Flat compared with $270.0 in the December quarter

36.3% Gross Margin (non-GAAP)

• Down slightly from 36.5% (non-GAAP) in the December quarter

• GAAP gross margin was 37.2%

$543 million cash, cash equivalents & investments

• Increased cash $38 million vs. December quarter

• $7.47 per share

• No debt

Internal inventory $238 million

• Inventory dollars down 2.5% q/q

• Weeks of inventory at about 18.5 - target is 16 weeks

• Inventory levels expected to drop in the June quarter

Third-party channel inventory at about 12 weeks

• Sell-through increased 6% from the December quarter

• Distribution sell-through has been strong through the month of April

Historical Financials

(1) Non-GAAP results. A reconciliation of our GAAP to non-GAAP measure can be found on our earnings press releases and on our web-site at www.irf.com

44

Sep' 08 Dec' 08 Mar' 09 Jun' 09 Sep' 09 Dec' 09 Mar'10 Jun'10 Sep'10 Dec'10 Mar'11 Jun'11 Sep'11 Dec'11 Mar'12 Jun'12 Sep'12 Dec'12 Mar'13 Jun'13 Sep'13 Dec'13 Mar'14

Revenue $244.5 $189.7 $146.6 $159.6 $179.4 $210.2 $241.9 $263.8 $280.9 $281.7 $296.7 $317.2 $302.7 $270.0 $248.1 $269.7 $252.5 $223.8 $224.3 $257.0 $269.8 $270.0 $269.5 Revenue

Adjusted Gross Margin 36.6% 33.9% 21.1% 20.8% 26.4% 29.9% 36.1% 36.1% 38.7% 40.1% 39.5% 37.2% 37.9% 35.7% 29.8% 27.5% 28.3% 22.2% 24.3% 30.2% 35.5% 36.5% 36.3% Adjusted Gross Margin

R&D $24.7 $24.9 $22.4 $26.2 $22.8 $24.2 $25.6 $26.6 $27.6 $28.5 $30.7 $32.5 $33.0 $32.2 $34.8 $35.0 $33.4 $32.1 $28.9 $32.6 $32.2 $32.8 $32.7 R&D

R&D as a % of Rev. 10.1% 13.1% 15.3% 16.4% 12.7% 11.5% 10.6% 10.1% 9.8% 10.1% 10.3% 10.2% 10.9% 11.9% 14.0% 13.0% 13.2% 14.3% 12.9% 12.7% 11.9% 12.1% 12.1% R&D as a % of Rev.

SG&A $46.9 $44.0 $50.6 $47.5 $43.6 $40.5 $43.1 $45.2 $48.3 $46.6 $46.7 $52.1 $49.0 $50.6 $49.6 $49.5 $47.0 $45.1 $43.0 $46.3 $43.8 $44.7 $45.0 SG&A

SG&A as a % of Rev. 19.2% 23.2% 34.5% 29.8% 24.3% 19.3% 17.8% 17.1% 17.2% 16.5% 15.7% 16.4% 16.2% 18.7% 20.0% 18.4% 18.6% 20.2% 19.2% 18.0% 16.2% 16.6% 16.7% SG&A as a % of Rev.

EBITDA $24.1 -$5.2 -$27.1 -$58.4 -$1.4 $16.6 $37.7 $43.0 $53.1 $66.7 $60.5 $55.4 $54.9 $21.2 $13.6 $14.0 $15.1 -$3.3 $5.3 $27.1 $41.9 $42.6 $42.0 EBITDA

EBITDA Margin 9.9% -2.7% -18.5% -36.6% -0.8% 7.9% 15.6% 16.3% 18.9% 23.7% 20.4% 17.5% 18.1% 7.9% 5.5% 5.2% 6.0% -1.5% 2.4% 10.5% 15.5% 15.8% 15.6% EBITDA Margin

Adjusted Operating Income 6.4 -22.1 -43.3 -76.0 -19.1 -1.9 18.5 23.3 33.0 45.9 39.8 33.2 32.8 -1.4 -10.4 -10.4 -9.3 -27.6 -17.5 4.5 19.8 21.1 20.1 Adjusted Operating Income

Adjusted Operating Margin 2.6% -11.6% -29.5% -47.6% -10.6% -0.9% 7.6% 8.8% 11.7% 16.3% 13.4% 10.5% 10.8% -0.5% -4.2% -3.9% -3.7% -12.3% -7.8% 1.8% 7.3% 7.8% 7.5% Adjusted Operating Margin

Adjusted Net Income -3.6 -23.9 -38.9 -41.6 -16.4 -2.9 17.8 22.1 31.0 44.9 41.2 29.8 25.4 -1.4 -12.0 -10.5 -13.9 -30.3 -19.8 -1.2 15.1 13.4 19.7 Adjusted Net Income

Adjusted Net Income % -1.5% -12.6% -26.5% -26.1% -9.1% -1.4% 7.4% 8.4% 11.0% 15.9% 13.9% 9.4% 8.4% -0.5% -4.8% -3.9% -5.5% -13.5% -8.8% -0.5% 5.6% 5.0% 7.3% Adjusted Net Income %

Adjusted EPS -$0.05 -$0.33 -$0.54 -$0.58 -$0.23 -$0.04 $0.25 $0.31 $0.44 $0.64 $0.58 $0.42 $0.35 -$0.02 -0.17 -0.15 -$0.20 -$0.44 -$0.29 -$0.02 $0.21 $0.19 $0.27 Adjusted EPS

CAPEX 4.8 6.3 1.9 5.9 9.5 10.6 18.3 19.7 22.7 32.9 38.0 52.6 45.2 26.6 24.7 31.6 22.0 26.1 12.9 11.7 11.9 10.7 13.2 CAPEX

CAPEX as a % of revenue 2.0% 3.3% 1.3% 3.7% 5.3% 5.0% 7.6% 7.5% 8.1% 11.7% 12.8% 16.6% 14.9% 9.9% 10.0% 11.7% 8.7% 11.7% 5.8% 4.6% 4.4% 4.0% 4.9% CAPEX as a % of revenue

FCF -20.9 5.5 -29.9 -17.2 -16.7 -38.3 10.8 38.2 14.9 22.4 -33.3 9.6 -28.6 -46.0 -39.2 26.8 -15.5 15.9 20.3 46.1 12.9 22.7 38.4 FCF

FCF Yield (as a % of revenue) -8.6% 2.9% -20.4% -10.8% -9.3% -18.2% 4.5% 14.5% 5.3% 8.0% -11.2% 3.0% -9.4% -17.0% -15.8% 9.9% -6.1% 7.1% 9.1% 17.9% 4.8% 8.4% 14.2% FCF Yield (as a % of revenue)

EBIT 6.4 -22.1 -43.3 -76 -19.1 -1.9 18.5 23.3 33 45.9 39.8 30.7 30.2 -3.3 -7.1 -10.4 -9.3 -27.6 -17.5 4.5 19.8 21.1 20.1 EBIT

Amort. of Acquisition Related Int. 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.2 1.2 1.7 2.6 2.6 1.9 2.1 1.7 1.7 1.7 1.7 1.6 1.6 1.6 1.6 Amort. of Acq. Related Int.

D&A 16.6 15.8 15.1 16.5 16.6 17.4 18.1 18.6 18.9 19.6 19 19.6 19.5 20.7 21.9 22.7 22.7 23.1 22.8 22.6 22.1 21.5 21.9 D&A

Cash from Operations -16.1 11.8 -28 -9.4 -7.1 -27.4 29.1 57.9 37.6 55.4 4.7 62.3 16.6 -19.4 -14.5 58.3 6.5 41.9 33.2 57.8 24.8 33.4 51.6 Cash from Operations

Jun' 09 Sep' 09 Dec' 09 Mar'10 Jun'10 Sep'10 Dec'10 Mar'11 Jun'11 Sep'11 Dec'11 Mar'12 Jun'12 Sep'12 Dec'12 Mar'13 Jun'13 Sep'13 Dec'13 Dec'13

TTM Cash from Ops -41.7 -32.7 -71.9 -14.8 52.5 97.2 180.0 155.6 160.0 139.0 64.2 45.0 41.0 30.9 92.2 139.9 139.4 157.7 149.2 167.6 TTM Cash from Ops

TTM EBITDA -$66.6 -$92.1 -$70.3 -$5.5 $95.9 $150.4 $200.5 $223.3 $235.7 $237.5 $192.0 $145.1 $103.7 $63.9 $39.4 $31.1 $44.2 $71.0 $116.9 $153.6 TTM EBITDA

TTM FCF -$62.5 -$58.3 -$102.1 -$61.4 -$6.0 $25.6 $86.4 $42.3 $13.7 -$29.9 -$98.3 -$104.2 -$87.0 -$73.9 -$12.0 $47.5 $66.8 $95.2 $102.0 $120.1 TTM FCF

$604 $591 $550 $555 $587 $576 $603 $490 $500 $444 $399 $366 $386 $367 $383 $403 $456 $480 $505 $543 Cash and Equivalents

-$1.50 -$1.68 -$1.39 -$0.60 $0.29 $0.96 $1.64 $1.97 $2.08 $1.99 $1.33 $0.58 $0.01 -$0.54 -$0.96 -$1.08 -$0.95 -$0.54 $0.09 $0.65 Adjusted EPS TTM

0.0%

5.0%

10.0%

15.0%

20.0%

25.0%

30.0%

35.0%

40.0%

Business Segment Product Mix and Targets

Gross Margin Target: Low 40’s

(1) Includes revenue mix for the three months of Fiscal Year 2014 for the quarter ended March 30, 2014. Intellectual Property revenue was $312K . Percentages may not add

to 100% due to rounding,

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Revenue Target: $1.25B

Business Segment

Revenue

Mix¹

Q3 FY14

Gross Margin

Target Model

Revenue

Target Model

(yearly)

Mar. 2014

$Rev. — GM%

(rounded)

Enterprise Power 12% 40% to 50% $200M — $220M $32M — 45.3%

Power Management

Devices 36% 25% to 35% $480M — $500M $97M — 30.9%

Energy Saving Products 20% 40% to 50% $260M — $280M $54M — 33.7%

Automotive 14% 30% to 40% $110M — $120M $38M — 28.4%

HiRel 18% 50% plus $180M — $190M $48M — 54.9%

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IR’s Capital Allocation Model – Balancing Between Medium-Term

Growth and Near-Term Shareholder Return

40%-50% Operational

Cash Needs

Operational • Cash, maintenance CAPEX,

working capital funding

• ERP Investments

~ 40% Strategic

Growth Initiatives

Strategic • Growth opportunities

- GaN commercialization (IP, CAPEX)

• Manufacturing capacity

upgrade/expansion

• New Business Opportunities (R&D)

• Corporate Development

Initiatives/M&A Balance of $150M

Share Repurchase

Plan

Used: $113M, avg cost

about $18

Remaining: $37M

• Share repurchases

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Summary

IR well positioned for future growth

• Return to profitability (expected for Sept. quarter)

• Strong financial leverage potential

Attractive Product Drivers to Fuel Revenue Growth

• High Voltage Products:

o Benchmark IGBT Platform

o New µMCM technologies

• Digital Power Control

• Next Generation Low- and Mid-Voltage MOSFETs

• Gallium Nitride – Re-entry into High Voltage

Reduced fixed costs to increase future operating leverage

• Resizing manufacturing footprint: Total savings $26M/yr when fully completed

• SG&A and R&D reductions: Total savings $40/yr - complete

Strong balance sheet

• $543M /$7.47 per share in cash, cash equivalents and investments

• No debt

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