In a significant move to address the soaring energy demands of next-generation data centres, Texas Instruments (TI) has launched a suite of power-management innovations aimed at enhancing power density and efficiency for high-performance computing and AI workloads.
Announced at the 2025 Applied Power Electronics Conference (APEC), TI debuted the TPS1685, the industry’s first 48V integrated hot-swap eFuse with power-path protection, alongside a new family of integrated GaN power stages—LMG3650R035, LMG3650R025, and LMG3650R070—housed in industry-standard TOLL packaging.
Power-Hungry Digital World
“As data centres demand more energy, powering the world’s digital infrastructure starts with smarter, more efficient semiconductors,” said Robert Taylor, General Manager, Industrial Power Design Services at TI. “Our latest innovations enable data centres to reduce their environmental footprint while supporting the surging needs of AI and digital technologies,” he added.
With many data centres shifting to 48V power architectures to support high-power components like CPUs and AI accelerators, the TPS1685 delivers a scalable solution for processing loads beyond 6kW, reducing design complexity and cutting solution size by 50% compared to traditional hot-swap controllers.
High Efficiency In Standard Package
TI’s new GaN power stages offer over 98% efficiency and >100W/in³ power density, combining a high-performance gate driver with a 650V GaN FET in a familiar TOLL package. This lets designers adopt GaN technology without requiring costly board redesigns.
Each device also includes integrated protection features, such as over-current, short-circuit, and thermal shutdown capabilities—crucial for high-power AC/DC applications in tight spaces like server power supplies.
TI is showcasing how its power technologies are shaping real-world applications across industry leaders:
- Dell’s 1.8kW server PSU: Utilises TI GaN stages to achieve over 96% efficiency in Dell’s first high-efficiency 12V server power design.
- Vertiv’s 5.5kW PSU: Part of the PowerDirect Rack DC system, this unit harnesses TI GaN to deliver up to 132kW per rack.
- Greatwall’s 8kW PSU: A collaboration with TI to create an ultra-high-density open-rack PSU, using TI GaN and C2000™ real-time microcontrollers.
With these innovations, Texas Instruments is pushing the boundaries of what’s possible in power delivery, giving engineers the tools to build faster, smaller, and more efficient systems—key to supporting the exponential growth of cloud computing, AI, and digital services.
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