New Buck-Boost Regulator with Best-in-Class 8 – 60 V Wide Input Range

March 2, 2017

PI3740 48 V Buck RegulatorToday we announced the PI3740, a new addition to our growing PI37xx family of Cool-Power ZVS Buck-Boost Regulators with a best-in-class input range of 8 – 60 V. The PI3740 delivers a regulated output voltage from 10 V to 50 VDC at up to 140 Watts or 8 Amps of output current with 96% peak efficiency.

The new PI3740 Cool-Power regulator uses Vicor’s proprietary high frequency zero-voltage switching (ZVS) technology, to deliver a best-in-class combination of conversion efficiency, power density and performance, making the PI3740 is an ideal choice for demanding automotive, industrial, test automation, LED lighting and battery charging applications.

The wide operating voltage range can enable a reduction in both the number of regulators and the number of power supply designs that must be designed, configured, manufactured, inventoried and maintained. For example, a power supply incorporating a PI3740 can be designed to operate from, or charge, both a 12V and a 24V battery source.

All Vicor PI37xx Buck-Boost converters feature seamless transitioning between Buck mode and Boost mode, making them the best choice for applications in which the regulator input voltage varies above and below the output voltage.

The PI3740 fully integrates its controller, power switches and support circuitry within a high density, thermally adept, 10mm x 14mm x 2.5mm SiP (System-in-Package) and does not need any special circuit customizations to deliver high performance across the operating voltage range.

Other PI3740 features include: high frequency (1 MHz) operation; parallel options; constant-voltage and constant-current (e.g. for LED lighting applications) operating modes; over-voltage, over-temperature and over-current protection; -40º to 115ºC temperature range; and an integrated current sense amplifier and integrated general purpose amplifier.

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