Digital Multiphase Controller with Pin-Strapped Configurations for Telecom and General-Purpose Applications

Alpha and Omega Semiconductor has introduced the new AOS Digital Controller product portfolio “AOZ97774QE” which provides DC/DC power conversion from the 12V power rail to Point-of-Load voltage for all main subsystems of the 5G wireless network, including CU, DU, and RU platforms. The AOZ97774QE controller is offered in a QFN 5mm x 5mm package and is specifically designed to meet the specifications of the Intel VR13 infrastructure applications. Moreover, this device supports the high accuracy IMON/TMON input for use with AOS or Smart Power Stages (SPS).

The AOZ97774 controller offers up to 15 stored pin-strapped configurations and NVM configuration, with 1,000 times read/write capability for maximum flexibility. This controller is powered by a single 3.3V supply and provides output voltage with 0.5% accuracy. AOS’s proprietary Digital COT architecture provides ultra-fast load transient response and enables stable and low voltage ripple operation with small-sized ceramic capacitors, further reducing solution size and cost.

Features

• Digital Voltage Mode Constant On-Time Control

• Fully configurable through PMBUSTM

• Provides 15 pin strap selectable device configurations, including NVM configuration

• Supports high accuracy IMON/TMON with AOS’s industry-standard footprint SPS

• Supports Intel VR13 SVID

• Power monitoring of the 12V input supply

• Auto DPM – Dynamic Phase Management

• Ripple Reduction at light load

• Ceramic capacitor stable

• Overvoltage, Undervoltage, and Overcurrent protection

• Overtemperature protection

• Phase Fault and Feedback Disconnection protection

• Black Box fault recording

Applications

• General Purpose, up to 3-phase applications

• Network Processor, ASIC, and FPGA Power

• High-current power regulation for VR13 Intel-based microprocessors

• DDR Memory power regulation for VR13 Intel-based systems

Availability and Pricing

The AOZ97774QE Controller is currently available in production quantities with a lead-time of 12 weeks. The unit price for 1,000 pieces is $2.88.