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60V buck-boost regulators

4th October 2016

Posted By Paul Boughton


Vicor Corporation announces the addition of two new buck-boost regulators to its Cool-Power ZVS Regulator portfolio. Delivering up to 150 Watts at greater than 97% efficiency, these new 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 optimised as a complete solution, PI3741-0x regulators are an ideal 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 minimises 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 – 60 VDC and integrate a ZVS controller, power switches and support circuitry within a high density, thermally adept, 10mm x 14mm x 2.5mm SiP (System-in-Package). The PI3741-00 delivers a user-definable output voltage in the range of 21 – 36 VDC 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)

* Single wire current sharing for parallel operation

* Over/under-voltage, over-temperature, and over-current protection

* Integrated current monitoring amplifier

* User-configurable high bandwidth differential amplifier

* Bidirectional synchronization options

* Over 150W peak power or up to 6.5A continuous current in a 10x14mm package.







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