New-Tech Europe | June 2017

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need to simplify board layout and dynamically scale power supply performance to meet the requirements of today’s multi-core processors.” Key Features and Specifications of ISL91211 Available in two factory configurable options: ISL91211A: four-phase, three output rails configured as 2+1+1 phase ISL91211B: four-phase, four output rails configured as 1+1+1+1 phase 5A maximum current per phase up to 20A with four phases R5 modulator architecture balances current loads with smooth phase adding and dropping for power efficiency optimization Automatic diode emulation mode for 91% efficiency at 1.1V output voltage Less than 0.1uA quiescent current (Iq) when EN=0V, and 17uA when EN=3.7V Independent dynamic voltage scaling for each output Input voltage range of 2.5V to 5.5V ±0.7% system accuracy; Output voltage remote sensing for accurate voltage regulation at the point-of-load I2C and SPI programmable output from 0.3V to 2V Soft-start and full protection against undervoltage, overvoltage, overcurrent, and overtemperature The ISL91211A triple-output PMIC and ISL91211B quad-output PMIC can be combined with Intersil ISL91127 high efficiency buck-boost regulators to provide application processor and subsystem peripheral rails for battery-operated products.

density, high-efficiency, fixed ratio DC-DC converter module in a ChiP package, which operates from a 384VDC nominal input and delivers an isolated and Safety Extra Low Voltage (SELV) 24V secondary output. The new BCM 6123 ChiP is offered in a through-hole form factor measuring 61mm x 23mm x 7.26mm. Targeting industrial, telecom, and lighting applications, Vicor’s family of high voltage bus converters give system designers a simple and cost effective means to create common bus voltages of 12V, 24V, and 48V directly from 384VDC. Based on the patented Sine-Amplitude Converter topology, high voltage BCM ChiPs are able to reach peak efficiencies of 98% and achieve power densities up to 2400W/in³. These flexible modules can be easily paralleled into high power arrays and outputs can be put in series to achieve higher VOUT. In addition, the high voltage BCMs are offered with either analog or digital signal interface and all have an operating temperature range of -40˚ to 100˚C. Since all Vicor BCMs are bi-directional, designers have the opportunity to incorporate this unique feature in new designs to enhance system functionality. Lastly, high voltage BCMs allow designers to reduce the amount of bulk capacitance needed at the load by utilizing the Sine-Amplitude Converter’s low AC impedance relative to the down-stream regulator, effectively ‘reflecting’ the capacitance across the module. With the new K=1/16 model, 500 µF of 24V point-of-load capacitance can be effectively provided by 2 µF on the module’s primary side.

Vicor Expands High Voltage Bus Converter Family with New K=1/16, 384VDC – 24VDC in a ChiP Package Summary: The new BCM6123TD1E2663Txx is a high-

New-Tech Magazine Europe l 79

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