Vicor Corporation PI3741-0x Cool-Power ZVS buck-boost regulators

Vicor Corporation has announced the addition of two buck-boost regulators to its Cool-Power ZVS Regulator portfolio.

Delivering up to 200 W at greater than 97% efficiency, the regulators incorporate Vicor’s high-frequency zero-voltage switching (ZVS) technology and feature good conversion efficiency, power density and performance. Engineered and optimised as a complete solution, the PI3741-0x regulators are suitable for demanding, automotive, industrial, test, automation, lighting, battery regulation and telecom applications.

ZVS buck-boost regulator technology minimises switching losses and maintains high efficiency over the specified input voltage range while enabling high-frequency operation (1 MHz) for improved power density and fast dynamic response to line and load transients. The regulators have a wide operating temperature range of -40 to 125°C and require only minimal external components to form a complete high-performance regulator.

Both 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, 10 x 14 x 2.5 mm SiP. 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.

Other features include: single-wire current sharing for parallel operation; over-/undervoltage, overtemperature and overcurrent protection; an integrated current monitoring amplifier; a user-configurable, high-bandwidth differential amplifier; bidirectional synchronisation options; and over 200 W peak power or up to 6.5 A continuous current in a 10 x 14 mm package.