Digital multiphase controller for telecom and general-purpose applications

25-08-2021 | Alpha and Omega Semiconductor | Power

Alpha and Omega Semiconductor Limited has introduced the first product of the AOS Digital Controller product portfolio. The AOZ97774QE is provided in a QFN 5mm x 5mm package. It offers the industry’s most flexible DC-DC controller supporting 5G Wireless, Networking, Optical Communication, and General-Purpose DC-DC applications.


The product provides DC-DC power conversion from the 12V power rail to PoL voltage for all main subsystems of the 5G wireless network, comprising CU, DU, and RU platforms. The part may be used for all 12V input applications where multi-phase power is needed, and the main output is three phases or less. The Control Unit, Digital Unit, and Radio Unit are all crucial subsystems that need the higher power that is supported with the device and the company's Power Stages. The AOZ97774 provides up to 15 stored pin-strapped configurations, which is notably more stored configurations than other solutions currently available. The multiple configurations allow one controller to behave like 15 separate power designs minimising product management, faster system design, and simpler logistics control. The controller also has NVM configuration, with 1,000 times read/write capability, which is also offered for maximum flexibility. This is particularly useful throughout the system bring-up and debug process, saving time and enhancing the reliability of results.


“The AOZ97774QE and companion, Smart Power Stage, offer a highly flexible and configurable solution for Information Infrastructure applications including Wireless and Wired Networking, Optical Communication, Server, Cloud Computing, and General-Purpose applications including FPGA and ASIC power. The 15 configurations allow for fast time to market and minimises the number of part numbers required to support a large portfolio of customer products,” said Daniel Lenskold, director of Digital Power Marketing at AOS.

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