Renesas Introduces 2nd Generation Digital Multiphase Controllers, Smart Power Stages

Advanced semiconductor manufacturer Renesas Electronics Corporation has announced its 2nd generation of 15 new digital multiphase controllers and 6 smart power stages that support 10A up to 1000A+ digital computing loads for advanced CPUs, FPGAs, GPUs and artificial intelligence (AI) ASICs addressing IoT infrastructure systems.

The ISL6822x, ISL6823x, RAA2282xx digital multiphase controllers and ISL993xx, RAA2213xx smart power stages expand Renesas’ industry-leading digital multiphase platform to 41 devices. These solutions outpace the rapidly increasing power densities in data center servers, storage, optical transport, routers, switches, as well as computing and 5G wireless infrastructure equipment.

Commenting on the development, Andrew Cowell, Vice President, Mobility, Infrastructure and IoT Power Business Division at Renesas, said “Renesas provides customers the industry’s widest digital multiphase portfolio and is the only supplier with 20-phase controllers for ultra-high current 1000A+ GPUs and AI ASICs.”

“Our customers appreciate the digital multiphase platform’s patented synthetic current control architecture for fastest transient response, reduced output capacitance and lower system cost. In addition, the digital multiphase controllers significantly reduce time to market with solder-free tuning of any application using Renesas’ PowerNavigator™ software, the first of its kind for digital multiphase controllers,” Cowell added.

The 2nd generation digital multiphase controllers enable greater scalability and flexibility for adapting to any system requirement without requiring phase doublers.

From two phases to 20 native phases, it is easy to find a controller that can be configured for a range of applications, depending on output current requirements.

In addition, individual set points can be set for adding/dropping phases to maximize efficiency across the entire load range. Each controller’s on-chip non-volatile memory allows the entire configuration to be saved to the device, eliminating the need for discrete components for setup and tuning. And a black box captures fault events, allowing faster diagnostics and debugging.

The controllers’ high performance digital engine features a patented synthetic current control architecture that tracks each phase current with zero latency. This allows the device to respond to any load transient with precise current and voltage positioning, and 30 percent less capacitance than competitive devices. Synthetic current control also makes it possible to develop high reliability systems using all ceramic capacitors.

Meanwhile, the 15 new digital multiphase controllers are available now in 4mm x 4mm to 8mm x 8mm QFN packages from Renesas’ worldwide distributors.

Energy efficiency | News published on 15/10/2020 by Manu Tayal

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