Silicon Labs launches new SoCs with industry-first PSA Level 4 security

AUSTIN - Silicon Labs (NASDAQ:SLAB), a $4.37 billion market cap semiconductor company with robust financials including a healthy 5.12 current ratio, announced Thursday the general availability of its first Series 3 platform products, the SiMG301 and SiBG301 system-on-chips (SoCs), now shipping worldwide through the company and authorized distributors. According to InvestingPro data, the company has demonstrated strong revenue growth of approximately 30% over the last twelve months.

The new SoCs feature the industry’s first PSA Level 4 security certification, validating their resilience against advanced physical attacks including laser fault injection and side-channel analysis. This achievement positions Silicon Labs at the forefront of IoT security as regulations tighten globally. InvestingPro analysis shows six analysts have recently revised their earnings expectations upward for the upcoming period, suggesting confidence in the company’s strategic direction.

Built on a 22 nm process, the Series 3 platform introduces a multi-core architecture that separates application, wireless, and security workloads. The SiMG301 supports concurrent Zigbee, Bluetooth LE, and Matter over Thread protocols, while the SiBG301 is optimized for Bluetooth LE applications. Both devices offer up to 4 MB Flash and 512 kB RAM.

The SiMG301 is among the first devices included in the Connectivity Standards Alliance’s new Matter Compliant Platform Certification program, which allows device makers to inherit pre-tested functionality and reduce certification requirements for end products.

"SiMG301 and SiBG301 bring Series 3’s compute and integration with the world’s first PSA Level 4 security, giving customers a stronger foundation for long-lived, secure IoT," said Ross Sabolcik, Senior Vice President of IoT Products at Silicon Labs, according to the company’s press release.

The new SoCs include Silicon Labs’ PIXELRZ single wire communication interface for LED controller ICs and an integrated LED pre-driver that simplifies designs for smart lighting applications while reducing component count and board space.

Series 3 complements Silicon Labs’ existing Series 2 platform, allowing customers to use Series 2 for ultra-low-power endpoints while adopting Series 3 for more demanding applications without changing development ecosystems. With the stock currently trading at $133.24 and showing strong fundamentals, investors can access comprehensive analysis and additional insights through InvestingPro’s detailed research reports, which cover this and 1,400+ other US equities with expert analysis and actionable intelligence.

In other recent news, Silicon Labs reported its second-quarter earnings for 2025, surpassing expectations with an earnings per share (EPS) of $0.11, significantly higher than the forecasted $0.03. The company also reported revenue of $193 million, slightly exceeding the anticipated $192.57 million. Despite these positive financial results, the stock experienced a decline, which could be attributed to broader market conditions or specific concerns regarding the company. Additionally, Stifel has maintained its Buy rating on Silicon Labs, keeping the price target at $150. This decision followed meetings with the company’s management team in Europe, where Stifel gained insights into Silicon Labs’ strategic focus on growth across various protocols and technologies. These recent developments highlight the company’s ongoing efforts to strengthen its market position and financial performance.

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