Power

Buck-boost regulators deliver up to 150W at 97% efficiency

14th October 2016
Barney Scott
0

Vicor has announced the addition of two buck-boost regulators to its Cool-Power ZVS Regulator portfolio. Delivering up to 150W at greater than 97% efficiency, these Cool-Power Regulators incorporate Vicor’s proprietary high frequency zero-voltage switching (ZVS) technology and feature best-in-class conversion efficiency, power density, and performance. 

Engineered and optimized as a complete solution, PI3741-0x regulators are a suitable choice for demanding, automotive, industrial, test, automation, lighting, battery regulation, and telecom applications.

Conventional, hard-switching buck-boost regulators are handicapped by switching losses and exhibit conversion efficiency degradation when operating from a higher voltage input source with extended dynamic range. Vicor’s ZVS Buck-Boost Regulator technology minimizes switching losses and maintains high efficiency over the specified input voltage range while enabling high frequency operation for improved power density and fast dynamic response to line and load transients.  The PI3741-0x regulators have a wide operating temperature range of -40°C to 125°C and require only minimal external components to form a complete high performance regulator.

Both PI3741-0x regulators operate over a wide input voltage range of 21–60VDC and integrate a ZVS controller, power switches and support circuitry within a high density, thermally adept, 10x14x2.5mm SiP. The PI3741-00 delivers a user-definable output voltage in the range of 21–36VDC while the PI3741-01 supports a higher output voltage in the range of 36–54 VDC.  

PI3741-0x regulators also feature high frequency operation (1MHz) and single wire current sharing for parallel operation. The converters offer over/under-voltage, over-temperature, and over-current protections. With an integrated current monitoring amplifier and user-configurable high bandwidth differential amplifier, the units provide bidirectional synchronization options and supply over 150W peak power or up to 6.5A continuous current in a 10x14mm package.

These latest additions to the Cool-Power ZVS Regulator portfolio continue to provide best-in-class performance while also being simple to use. Backed by an online suite of design, system analysis and simulation tools, these new regulators enable users to quickly and economically configure high-density, high-performance and highly reliable power systems for accelerated time to market.

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