Exhibit 99.1

Inphi Corporation Announces Q1 2019 Results

Strong Year-over-year Revenue Growth across Multiple Product Lines

SANTA CLARA, Calif., April 30, 2019 – Inphi Corporation (NYSE: IPHI), a leader in high-speed data movement interconnects, today announced financial results for its first quarter ended March 31, 2019.

GAAP Results

Revenue in the first quarter of 2019 was $82.2 million on a U.S. generally accepted accounting principles (GAAP) basis, up 36.7% year-over-year, compared with $60.1 million in the first quarter of 2018. The increase was due to higher demand for both telecom and datacenter products.

Gross margin under GAAP in the first quarter of 2019 was 57.9%, compared with 54.1% in the first quarter of 2018. The increase in gross margin primarily reflects a change in the product mix.

GAAP operating loss in the first quarter of 2019 was $15.5 million or (18.8%) of revenue, compared to GAAP operating loss in the first quarter of 2018 of $28.0 million or (46.5%) of revenue. The decrease in operating loss was mainly due to higher revenue.

GAAP net loss for the first quarter of 2019 was $22.7 million or ($0.51) per common share, compared with $23.0 million or ($0.53) per common share in the first quarter of 2018.

Inphi reports gross margin, operating expenses, net income (loss), and earnings per share in accordance with GAAP and on a non-GAAP basis. A reconciliation of the GAAP to non-GAAP, gross margin, operating expenses, net income, earnings per share, as well as a description of the items excluded from the non-GAAP calculations is included in the financial statements portion of this press release.

Non-GAAP Results

Gross margin on a non-GAAP basis in the first quarter of 2019 was 70.7%, compared with 66.4% in the first quarter of 2018. The increase was due to a change in product mix.

Non-GAAP operating income in the first quarter of 2019 was $15.6 million, compared with non-GAAP operating loss of $2.1 million in the first quarter of 2018. The increase is primarily due to higher revenue.

Non-GAAP net income in the first quarter of 2019 was $15.4 million, or $0.33 per diluted common share. This compares with non-GAAP net loss of $2.0 million, or ($0.05) per diluted common share in the first quarter of 2018.

“Year-over-year revenue growth of 37% coupled with Non-GAAP gross and net operating margin expansion resulted in Q1 Non GAAP EPS that exceeded the midpoint of our outlook by $0.05,” said Ford Tamer President and CEO of Inphi Corporation. “Our strong Q1 benefited from robust demand for both Telecom products, Coherent M200 DSPs, TiAs and drivers as well as the Data Center 50, 100, 200 and 400G PAM4 DSPs, TiAs and drivers. We also benefited from the start of the 5G backhaul infrastructure buildup.”

Business Outlook

The following statements are based on the Company’s current expectations for the second quarter of 2019. These statements are forward-looking and actual results may differ materially. A reconciliation between the GAAP and non-GAAP outlook is included at the end of this press release.

Quarterly Conference Call Today

Inphi plans to hold a conference call today at 4:30 p.m. Eastern Time / 1:30 p.m. Pacific Time with Ford Tamer, president and chief executive officer, and John Edmunds, chief financial officer, to discuss the first quarter 2019 results.

The call can be accessed by dialing (765) 507-2591, participant passcode: 6098083. Please dial-in ten minutes prior to the scheduled conference call time. A live and archived webcast of the call will be available on Inphi’s website at http://investors.inphi.com for up to 30 days after the call.

About Inphi

Inphi Corporation is a leader in high-speed data movement. We move big data - fast, throughout the globe, between data centers, and inside data centers. Inphi's expertise in signal integrity results in reliable data delivery, at high speeds, over a variety of distances. As data volumes ramp exponentially due to video streaming, social media, cloud-based services, and wireless infrastructure, the need for speed has never been greater. That's where we come in. Customers rely on Inphi's solutions to develop and build out the Service Provider and Cloud infrastructures, and data centers of tomorrow. To learn more about Inphi, visit www.inphi.com.

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Cautionary Note Concerning Forward-Looking Statements

These forward-looking statements may be identified by terms such as outlook, believe, expect, may, will, provide, continue, could, and should, and the negative of these terms or other similar expressions. These statements include statements relating to: the Company’s business outlook and current expectations for 2019, including with respect to the second quarter of 2019, revenue, gross margin, stock-based compensation expense, operating performance, net income or loss, and earnings per share; the Company’s expectations regarding growth opportunities and increase in market share, increasing demand in Q2, growth inside data centers, success of new product introductions, customer relationships and design wins and benefits of using non-GAAP financial measures. These statements are based on current expectations and assumptions that are subject to risks and uncertainties. Actual results could differ materially from those anticipated as a result of various factors, including: the Company’s ability to sustain profitable operations due to its history of losses and accumulated deficit; dependence on a limited number of customers for a substantial portion of revenue and lack of long-term purchase commitments from our customers; product defects; risk related to intellectual property matters, lengthy sales cycle and competitive selection process; lengthy and expensive qualification processes; ability to develop new or enhanced products in a timely manner; development of target markets; market demand for the Company’s products; reliance on third parties to manufacture, assemble and test products; ability to compete; and other risks inherent in fabless semiconductor businesses. In addition, actual results could differ materially due to changes in tax rates or tax benefits available, changes in demand, changes in government regulation, changes in claims that may or may not be asserted, as well as changes in pending litigation. For a discussion of these and other related risks, please refer to Inphi Corporation’s recent SEC filings, including its Annual Report on Form 10-K for the year ended December 31, 2018, which are available on the SEC’s website at www.sec.gov. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date thereof. Inphi Corporation undertakes no obligation to update forward-looking statements for any reason, except as required by law, even as new information becomes available or other events occur in the future.

Inphi, the Inphi logo and Think fast are registered trademarks of Inphi Corporation. All other trademarks used herein are the property of their respective owners.

Corporate Contact:

Kim Markle                              

Inphi                                   

408-217-7329                              

kmarkle@inphi.com

Investor Contact:

Deborah Stapleton

650-815-1239

deb@stapleton.com

INPHI CORPORATION

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands of dollars, except share and per share amounts)

(Unaudited)

The following table presents details of stock-based compensation expense included in each functional line item in the consolidated statements of operations above: 

INPHI CORPORATION

CONSOLIDATED BALANCE SHEETS

(in thousands of dollars)

(Unaudited)

INPHI CORPORATION

RECONCILIATION OF GAAP  TO NON-GAAP MEASURES

(in thousands of dollars, except share and per share amounts)

(Unaudited)

To supplement the financial data presented on a GAAP basis, the Company discloses certain non-GAAP financial measures, which exclude stock-based compensation, legal, transition costs and other expenses, purchase price fair value adjustments related to acquisitions, non-cash interest expense related to convertible debt, unrealized gain or loss on equity investments and deferred tax asset valuation allowance. These non-GAAP financial measures are not in accordance with GAAP. These results should only be used to evaluate the Company’s results of operations in conjunction with the corresponding GAAP measures. The Company believes that its non-GAAP financial information provides useful information to management and investors regarding financial and business trends relating to its financial condition and results of operations because it excludes charges or benefits that management considers to be outside of the Company’s core operating results. The Company believes that the non-GAAP measures of gross margin, income from operations, net income and earnings per share, in combination with the Company’s financial results calculated in accordance with GAAP, provide investors with additional perspective and a more meaningful understanding of the Company’s ongoing operating performance. In addition, the Company’s management uses these non-GAAP measures to review and assess the financial performance of the Company, to determine executive officer incentive compensation and to plan and forecast performance in future periods. The Company’s non-GAAP measurements are not prepared in accordance with GAAP, and are not an alternative to GAAP financial information, and may be calculated differently than non-GAAP financial information disclosed by other companies.

RECONCILIATION OF GAAP  NET INCOME TO NON-GAAP NET INCOME

(in thousands of dollars, except share and per share amounts)

(Unaudited)

INPHI CORPORATION

RECONCILIATION OF GAAP  TO NON-GAAP MEASURES -SECOND QUARTER 2019 GUIDANCE

(in thousands of dollars, except share and per share amounts)

(Unaudited)