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alphaandomegasemiconductorlimited

Eight-phase controller provides two output power rails

May 13, 2025 By Redding Traiger

Alpha and Omega Semiconductor Limited announced its AOZ98252QI 2-output, 8-phase controller with low 2.5 mA quiescent power. Featuring AMD SVI3 high-speed and SMBus digital interfaces, the AOZ98252QI is engineered as a key component in a complete system power solution with AOS’ DrMOS products for graphics and desktop systems. The AOZ98252QI digital controller provides two output rails […]

Filed Under: Controllers, Development Tools, Power Components, Power Management Tagged With: alphaandomegasemiconductorlimited

MOSFET meets 48V telecom/datacenter hot-swap requirements

May 2, 2025 By Redding Traiger

Alpha and Omega Semiconductor Limited announced its AOTL66935 utilizes AOS’ 100V AlphaSGT proprietary MOSFET technology, which combines the advantages of trench technology for low on-resistance with high safe operating area (SOA) capability that meets 48V hot swap requirements in AI server and telecom applications. The AOTL66935 hot swap MOSFET prevents damage to the system by limiting […]

Filed Under: AI, Data center, Development Tools, MOSFETS, Telecommunications Tagged With: alphaandomegasemiconductorlimited

Power controller handles high-current AI systems to OpenVReg16 specifications

January 7, 2025 By Redding Traiger

Alpha and Omega Semiconductor Limited unveiled its AOZ73016QI, a 16-phase, 2-rail controller specifically designed to the latest OpenVReg16 (OVR16) specifications from NVIDIA. The AOZ73016QI controller design is based on the company’s high-performance, proprietary AOS Advanced Transient Modulator (A2TM) control scheme. In addition to supporting all the basic requirements of the OVR16 specification, the new AOS controller […]

Filed Under: AI, Controllers, Data center, Development Tools Tagged With: alphaandomegasemiconductorlimited

Power controller supports NVIDIA Blackwell GPU

December 11, 2024 By Redding Traiger

Alpha and Omega Semiconductor Limited unveiled its AOZ73004CQI, the world’s first 4-Phase controller for Blackwell GPUs, its advanced design has received full OpenVReg (Open Voltage Regulator) OVR4-22 compliance. The performance and energy efficiency gains from the introduction of the Blackwell platform help propel AI capabilities supported by increased GPU performance. AOZ73004CQI’s cycle-by-cycle current limit meets the overcurrent […]

Filed Under: AI, Consumer electronics, Controllers, Development Tools, Power Components Tagged With: alphaandomegasemiconductorlimited

Buck converter powers Intel Arrow Lake platform

October 9, 2024 By Redding Traiger

Alpha and Omega Semiconductor Limited announced its new application-specific EZBuck Regulator. The highly integrated, compact, and high-power-density AOZ23567QI Constant On-Time Buck Converter offers an upgraded solution that is designed to support VCCPRIM_VNNAON rails in the Intel Arrow Lake platform. AOS’ AOZ23567QI Constant On-Time Buck Converter delivers all necessary power silicon in a thermally enhanced QFN 5 x 5 […]

Filed Under: Consumer electronics, Development Tools, Power Components, Regulators Tagged With: alphaandomegasemiconductorlimited

Sourcing protection switch keeps unwanted current away from USB-C power devices

April 12, 2024 By Redding Traiger

Alpha and Omega Semiconductor Limited announced the release of its AOZ1377DI Type-C Protection Switch. Designed to enhance USB Type-C efficiency and safety, these new protection Type-C switches have a current-limiting switch targeting applications that require comprehensive protection. AOZ1377DI boasts a unique feature supporting up to 7A with an input voltage of up to 20V input voltage, […]

Filed Under: Development Tools, Power Components, Switches Tagged With: alphaandomegasemiconductorlimited

Power MOSFET supports USB-PD 3.1 buck-boost converters

March 28, 2024 By Redding Traiger

Alpha and Omega Semiconductor Limited announced its AONZ66412 XSPairFET MOSFET designed for Buck-Boost converters in USB PD 3.1 Extended Power Range (EPR) applications.  The USB PD 3.1 EPR increases the USB-C maximum power up to 240W.  AONZ66412 is defined to support the most commonly addressed power range of up to 140W at 28V, with two 40V […]

Filed Under: Consumer electronics, Development Tools, IoT, MOSFETS, Power Components, Power Management Tagged With: alphaandomegasemiconductorlimited

Buck converters provide power to Intel/Arrow Lake CPUs

February 22, 2024 By Redding Traiger

Alpha and Omega Semiconductor Limited introduced its new application-specific EZBuck regulator. The AOZ22559QI and AOZ22539QI Constant On-Time Buck Converters are offered in a QFN 4 x 4 package, which is the industry’s most compact footprint and is designed to support VCCPRIM_VNNAON rails in Intel Meteor Lake and Arrow Lake platforms. Intel’s Meteor Lake and Arrow […]

Filed Under: Converters, Development Tools, Power Components, Power Management, Regulators Tagged With: alphaandomegasemiconductorlimited

Teardown: IOGEAR Smart USB-C 100-W GaN fast charger

December 19, 2022 By Lee Teschler

GaN charger teardown

YouTube has several videos featuring really bad designs for fast phone chargers. YouTubers doing these videos often point to problems such as transformers with chintzy insulation, line capacitors that lack the correct safety rating, and even chargers with plastic cases that heat up so much that they actually melt when there’s a heavy load. Fortunately, […]

Filed Under: FAQ, Featured, Teardowns Tagged With: alphaandomegasemiconductorlimited, FAQ, hyelectronic, IOGear, navitassemiconductor, onsemiconductor, shenzhenchipsourcetek

SiC MOSFETs target automotive, industrial uses

November 10, 2022 By Redding Traiger

Alpha and Omega Semiconductor Limited announced its new industry-leading 650V and 750V SiC MOSFET platform for both industrial and automotive applications.  The 650V SiC MOSFETs are ideal switching solutions for industrial applications such as solar inverters, motor drives, industrial power supplies, and new energy storage systems, while the AEC-Q101 qualified 750V SiC MOSFET line is targeted […]

Filed Under: Automotive, Development Tools, Industrial, MOSFETS, Motors and motor control, Power Components, Power Management Tagged With: alphaandomegasemiconductorlimited

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Robust design for Variable Frequency Drives and starters

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The case for vehicle 48 V power systems

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Developing power architecture to support autonomous transportation

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