PMICs power high-performance automotive AI SoCs

August 31, 2021 // By Rich Pell
PMICs power high-performance automotive AI SoCs
Semiconductor maker Dialog Semiconductor has announced a new family of power management ICs (PMICs) for powering high-performance automotive AI SoCs.

The DA914X-A family of extremely efficient, high-current, automotive-grade, step-down DC-DC (buck) converters deliver up to 40 A. The devices, says the company, offer a significantly better alternative to power solutions that require a combination of a power controller and discrete FETs.

The DA914X-A devices integrate power FETs and all required control logic into a highly integrated, highly efficient monolithic device. Few external components are required for operation, enabling extremely low system BoM costs and solution footprints below 170 mm 2.

The devices are extremely power efficient, reducing the thermal design challenges of powering complex automotive SoCs with very high current requirements. As a result, the product line is offered as being ideal for powering graphics or AI embedded processors used in machine learning and vision applications for next-generation autonomous vehicles.

“As electronics in automobiles continue to demand higher performance heterogeneous processing capability, the requirement for cost effective, space saving power solutions becomes more and more critical,” says Tom Sandoval, Senior Vice President, GM Automotive Business Segment, Dialog Semiconductor. “The DA914X PMIC family of products offers automotive customers market leading high current power delivery solutions for multi-core automotive SoCs with embedded high-performance graphics or AI processor cores.”

The DA914X-A family currently includes two devices: The DA9141-A operates as a single-channel, quad-phase buck converter, delivering up to, 40A output current, while the DA9142-A operates as a single-channel, dual-phase buck converter, delivering up to 20 A output current. All devices have an input voltage range of 2.8 V to 5.5 V and an output voltage range of 0.3 V to 1.3 V, making them suitable for a wide variety of low power systems.

The DA914X-A products are offered as including several key features to meet the needs of today’s complex automotive electronics systems:

  • Multi-Phase operation delivers better transient performance, lower losses, better efficiency, optimized thermal dissipation, and minimized ripple current and voltages when compared to a single-phase architecture
  • Lower PCB costs and

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