Chan Ye Xin Xi Wang·2025-12-11 01:34Core Viewpoint - The rapid development of downstream markets such as automotive, servers, and communications in China is driving a significant increase in the demand for multi-phase power supplies, which is becoming a notable growth market in the semiconductor sector. By 2024, the demand for multi-phase power supplies in China is expected to reach 22.0139 million sets, a year-on-year increase of 17.0%, with a market size of 11.342 billion yuan, a year-on-year increase of 20.0% [1][10]. Overview - Multi-phase power supplies convert electrical energy to higher or lower voltage, current, or power, primarily serving the power supply needs of high-load chips like CPUs and GPUs. The term "phase" refers to the number of parallel combinations of inductors and MOS power devices [2][5]. - A multi-phase power supply consists of a controller and several power stages, utilizing PWM (Pulse Width Modulation) technology to control output voltage and frequency, requiring high design and manufacturing standards [2][5]. Industry Chain - The upstream of the multi-phase power supply industry includes semiconductor materials, electronic components, and EDA tools. The midstream involves design, manufacturing, packaging, and testing, while the downstream applications include automotive, servers, desktop computers, communications, and consumer electronics [8][9]. Market Demand - The automotive sector is the largest demand market for multi-phase power supplies in China, expected to account for over 50% of the market by 2024. The automotive industry is a crucial pillar of the national economy, with China being the world's largest automobile producer for 16 consecutive years [9][10]. Competitive Landscape - The multi-phase power supply market is primarily dominated by overseas leaders such as TI, Infineon, and MPS. Domestic companies like Jingfeng Mingyuan, Silergy, and Jiewater are emerging players, with Jingfeng Mingyuan being the first domestic power chip company to enter NVIDIA's recommended supplier list [11][12]. Development Trends - The multi-phase power supply industry in China is accelerating its shift towards emerging markets such as AI computing and intelligent driving. In the server sector, the dependence on high-performance chips is increasing, making multi-phase power supplies essential for stable operation. In the automotive sector, the demand for high current power supply is driving upgrades to high integration solutions [14][15].