Non-isolated Up Converters Support High-Performance GPUs

Vicor has announced a 12 V to 48 V non-isolated up converter to support 48 V high-performance GPUs in data centers that are still relying on legacy 12 V power distribution. The 2317 NBM converts 12 V to 48 V with over 98% peak efficiency, 750 W continuous and 1 kW peak power in a 23 mm x 17 mm x 7.4mm surface-mount SM-ChiP package. The NBM (NBM2317S14B5415T00) provides a complete solution with no external input filter or bulk capacitors required. By switching at 2 MHz with ZVS and ZCS, the NBM provides low output impedance and Megahertz-fast transient response to dynamic loads. The NBM incorporates hot-swap and inrush current limiting.

The NBM supports state-of-the-art 48 V input GPUs using Power-on-Package (“PoP”) Modular Current Multipliers (“MCMs”) driven from a 48 V node sourcing a small fraction (1/48th) of the GPU current. Current multiplication overcomes the power delivery boundaries imposed by traditional 12 V systems standing in the way of higher bandwidth and connectivity.

The Vicor Power-on-Package modules build upon Factorized Power Architecture (FPA) systems deployed in high-performance computers and large-scale data centers. FPA provides efficient power distribution and direct conversion from 48 V to 1 V for GPUs, CPUs and ASICs demanding up to 1,000 A. By deploying current multiplication in close proximity to high-current Artificial Intelligence (AI) processors, PoP MCMs enable higher performance and system efficiency.

Vicor |


2.7 GHz Up/Down Converter Enables RF Designs

CML Microcircuits has announced the release of the CMX975, a 2.7 GHz Up/Down converter expanding the company’s RF building block IC range.The CMX975 is an enabler for small form factor high frequency RF transceiver designs, operating up to 2.7 GHz, that require high performance and low power consumption; in a small form factor. The device integrates up and down conversion mixers and associated frequency generation circuitry, therefore minimizing the number of external components required to configure a complete system.

The device features programmable operation, allowing the designer to fully optimize the system design. Both receive and transmit mixers can be selected to operate as a double balanced mixer stage or as image cancelling mixers, intended to ease external filtering requirements and to lower overall system cost. A flexible switching arrangement allows internal or externally sourced local oscillator signals and the main RF mixers to be driven from an external or integrated VCO. The integrated Fractional-N PLL allows fine frequency resolution and fast frequency lock. An integer-N PLL and VCO is also integrated to provide an IF local oscillator for superhet architecture operation.

The CMX975 has programmable power management functionality, controlled via a SPI compatible serial bus, operates from a single 2.7 V to 3.6 V power supply and is available in a small outline VQFN package. The device is ideally suited to applications in mobile satellite services (MSS), military communications, aircraft surveillance systems, high performance ISM radio applications and general purpose RF/IF communication systems.

CML Microcircuits |