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Silergy is a multinational semiconductor company focused on power-management integrated circuits and related analog and mixed-signal products.

Last updated November 4, 2026

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Overview

Silergy is a multinational semiconductor company that designs and supplies power-management integrated circuits (PMICs) and related analog and mixed-signal semiconductor products. The company was incorporated in the Cayman Islands, has its corporate headquarters in Hangzhou, Zhejiang, and operates across multiple countries, including a technology headquarters in Santa Clara, California. Its business is centered on semiconductor design rather than ownership of large-scale wafer-fabrication facilities, using a virtual integrated-device-manufacturer model that combines internal product development with manufacturing partnerships with external foundries. The company was established in February 2008 by Silicon Valley semiconductor veterans. Its original base was Santa Clara, California, but the global financial crisis that began in 2008 contributed to the creation of an additional Hangzhou presence. That location also positioned Silergy closer to China's expanding electronics market and domestic demand for power-management components. From its early years, the company presented itself as a China-linked competitor in a market historically led by large American and European semiconductor suppliers, including Texas Instruments, Qualcomm, and Infineon Technologies. Silergy's products are intended to regulate, convert, distribute, and monitor electrical power inside electronic systems. Such components are used in applications including consumer electronics, communications equipment, industrial systems, automotive electronics, energy-management equipment, and other devices that require efficient voltage conversion and power control. Its virtual-IDM approach allows the company to integrate several functions into a single chip while relying on specialist foundries for wafer production. This model reduces the need for Silergy to operate its own complete fabrication network and supports a broad product portfolio across different process technologies and application requirements. A major corporate turning point came in December 2013, when Silergy completed an initial public offering and became listed on the Taiwan Stock Exchange. The listing improved access to capital and provided a platform for recruiting semiconductor professionals in Taiwan and elsewhere. The company subsequently expanded through acquisition. In 2016, it acquired the smart-meter and energy-monitoring business of Maxim Integrated, including Teridian Semiconductor, for US$105 million. That transaction broadened Silergy's capabilities beyond conventional power-management products and gave it additional technology and customer relationships in metering and energy monitoring. Silergy continued to expand its physical and technical footprint during the late 2010s and early 2020s. In January 2018, a company unit was reported to have agreed to purchase property in Xi'an for 41.6 million yuan. In 2020, the company generated more than US$1 billion in revenue, according to reporting published in April 2021. In April 2023, it leased a substantially larger office in Santa Clara for its United States technology headquarters, replacing a smaller Sunnyvale facility. The move reflected the continuing importance of Silicon Valley engineering and design talent to the company's international operations. Like other semiconductor suppliers, Silergy experienced cyclical pressure during the downturn in China's electronics market. By the first quarter of 2024, it had returned to positive growth after six consecutive quarters of decline. The company identified green energy as a future area of emphasis, aligning its power-management expertise with demand from renewable-energy systems, energy storage, electric transportation, and other efficiency-oriented applications. Silergy remains an active, internationally oriented semiconductor brand whose identity is closely associated with analog power technology, foundry-based manufacturing, acquisition-led capability expansion, and the development of products for increasingly energy-conscious electronic systems.

History

Silergy was founded in February 2008 by several semiconductor professionals with Silicon Valley experience. The company initially operated from Santa Clara, California, but established an important additional presence in Hangzhou during the global financial crisis. Hangzhou offered access to China's growing electronics industry and domestic demand while allowing the company to build an engineering and business base in the country. From its beginning, Silergy concentrated on power-management integrated circuits, a category of components used to control and convert electrical power in electronic equipment. At the time, much of the global PMIC market was dominated by major American and European semiconductor companies. Silergy's stated ambition was to develop a China-linked competitor with the scale and technical breadth to challenge established suppliers. Its operating model was based on a virtual integrated-device-manufacturer structure: Silergy designed and developed chips while collaborating with external wafer foundries for manufacturing. This approach allowed it to combine multiple functions in individual chips without maintaining a fully owned fabrication infrastructure. The company's international and capital-market profile changed in December 2013, when it completed an initial public offering and became listed on the Taiwan Stock Exchange. Taiwan's semiconductor ecosystem provided access to engineering talent, suppliers, investors, and industry networks. The listing also made it easier for Silergy to recruit openly in Taiwan rather than operating as a privately held company with a lower public profile. Silergy pursued expansion through acquisitions as well as organic product development. In 2016, it purchased Maxim Integrated's smart-meter and energy-monitoring business, including Teridian Semiconductor, for US$105 million. The acquisition added capabilities and products related to metering, measurement, and energy monitoring, broadening the company beyond core voltage-regulation and power-conversion applications. In January 2018, Reuters reported that a Silergy unit planned to buy property in Xi'an for 41.6 million yuan, another indication of investment in its Chinese operating network. During the 2020s, Silergy continued to build an international design and operating presence. Its revenue exceeded US$1 billion in 2020, according to reporting published in April 2021. In April 2023, the company leased a larger facility in Santa Clara to serve as its United States technology headquarters. The new office replaced a considerably smaller Sunnyvale location and reinforced the role of Silicon Valley in Silergy's research, product development, and technical recruitment. The company later encountered the same demand and pricing pressures affecting much of the semiconductor industry. Weakness in China's market and lower pricing contributed to six consecutive quarters of decline. In the first quarter of 2024, Silergy returned to positive growth. Its stated next area of emphasis was green energy, where power-management and energy-monitoring expertise can support renewable generation, energy storage, electric mobility, and efficiency-focused electronic systems. Silergy's development therefore combines four themes: a Silicon Valley origin, a strategic expansion into China, a Taiwan public listing, and a foundry-partner manufacturing model. Its portfolio has also evolved from a primary focus on power-management ICs toward a broader set of analog, mixed-signal, metering, and energy-related semiconductor technologies.

  • 2024

    Growth resumes and green energy becomes a focus

    [1]

    The company returned to positive growth in the first quarter after six quarters of decline and identified green energy as a target market.

  • 2023

    Santa Clara technology headquarters expands

    [1]

    Silergy leased a larger Santa Clara office for its United States technology headquarters, replacing a smaller Sunnyvale facility.

  • 2020

    Revenue exceeds US$1 billion

    [1]

    Silergy's revenue surpassed US$1 billion for 2020, according to reporting published the following year.

  • 2018

    Xi'an property expansion

    [2]

    A Silergy unit was reported to have planned the purchase of Xi'an property for 41.6 million yuan.

  • 2016

    Acquisition of Maxim's metering business

    [1]

    Silergy acquired Maxim Integrated's smart-meter and energy-monitoring business, including Teridian Semiconductor, for US$105 million.

  • 2013

    Initial public offering in Taiwan

    [1]

    Silergy completed its initial public offering in December 2013 and became listed on the Taiwan Stock Exchange.

  • 2008

    Silergy is founded

    [1]

    Silergy was established in February 2008 by several Silicon Valley semiconductor veterans. It began in Santa Clara and added a Hangzhou presence during the global financial crisis.

Products and positioning

A China-linked, internationally operating fabless or virtual-IDM semiconductor company specializing in power-management and related analog and mixed-signal technologies. Silergy positions itself as an alternative supplier to established American and European semiconductor companies, combining Silicon Valley engineering, Chinese market access, Taiwan-listed corporate financing, and outsourced foundry manufacturing.

  • Power semiconductors

    Power-management integrated circuits

    Silergy's core product area is power-management integrated circuits used to regulate, convert, distribute, and monitor electrical power within electronic systems. These devices can support functions such as voltage regulation, power conversion, and system-level power sequencing across consumer, communications, industrial, automotive, and energy-related equipment.

  • Metering and energy management · 2016

    Smart-meter and energy-monitoring semiconductors

    Following its 2016 acquisition of Maxim Integrated's relevant business, Silergy expanded into semiconductor solutions for smart meters and energy monitoring. These products are associated with measuring electrical consumption and supporting the monitoring and management of energy flows in utility and industrial environments.

  • Analog semiconductors

    Analog and mixed-signal integrated circuits

    Silergy develops analog and mixed-signal devices that connect power-control functions with sensing, measurement, and other system operations. The company's virtual-IDM model supports integration of multiple functions into a single chip and allows products to be manufactured through external foundry partners.

Controversies

  • 2021

    Silergy Fined by Taiwan Stock Exchange for Delayed Disclosure of Material Information After Investor Conference

    According to Taiwan's Commercial Times, Silergy-KY (6415), the "stock king" of the Taiwan stock market, failed to announce material information in a timely manner as required after holding an investor conference, and the Taiwan Stock Exchange imposed a NT$30,000 penalty. The amount was small and did not significantly impact the share price. Progress: administrative penalty. Subject involved: Silergy Corp. (Silergy-KY). Scope: Silergy-KY information disclosure.

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Brand decisions

  • 2024

    Increase focus on green energy applicationsStrategy

    Background

    After six quarters of decline caused by weak Chinese market conditions and pricing pressure, Silergy returned to positive growth in the first quarter of 2024.

    Action taken

    The company identified green energy as a future market focus for its power-management and energy-related semiconductor capabilities.

    Aftermath

    The available reference material does not provide a later quantified outcome for this strategy.

  • 2016

    Acquire Maxim Integrated's smart-meter and energy-monitoring businessM&A

    Background

    Silergy sought to expand beyond its established power-management focus and add capabilities in metering and energy monitoring.

    Action taken

    The company acquired the relevant Maxim Integrated business, including Teridian Semiconductor, for US$105 million.

    Aftermath

    The transaction broadened Silergy's product and technology portfolio in smart metering and energy measurement.

    Acquisition price. US$105 million (2016)

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