High-frequency ZVS technology enhances conversion efficiency and power density performance
Suitable for automotive, industrial, and battery charging applications

Vicor announced the addition of a new product to the PI37xx family of Cool-Power ZVS buck-boost regulators.

The newly added PI3740 Cool-Power regulator features an input operating voltage range of 8-60 VDC and a regulated output voltage range of 10-50 VDC. It also delivers maximum power of 140W, output current of 8A, and efficiency of 96%.

The PI3740, which adopts Vicor's proprietary high-frequency ZVS (Zero-voltage Switching) technology and improves conversion efficiency, power density, and performance, is suitable for applications such as automotive, industrial, test automation, LED lighting, and battery charging.

Like all other products in the PI37xx family, the PI3740 meets performance specifications across the full operating voltage range without requiring special external circuitry. Because this product has a wide operating voltage range, it reduces the number of regulators and power supplies that need to be designed, configured, manufactured, stored, and maintained.



Meanwhile, all PI37xx buck-boost converter series supplied by Vicor, including this product, provide seamless transitions between buck mode (input voltage greater than output voltage) and boost mode (input voltage less than output voltage), making them an excellent solution for applications where the regulator input voltage is either greater than or less than the output voltage.

In particular, the PI3740 fully integrates the controller, power switches, and peripheral circuits in a heat-resistant, high-density 10mm x 14mm x 2.5mm SiP (System-in-Package). Other features of the PI3740 include high-frequency (1MHz) operation, paralleling options, constant voltage and constant current (such as for LED lighting applications) operating modes, overvoltage, thermal overload, and overcurrent protection (operating in the temperature range from -40°C to 115°C), current sensing amplifier, and integrated general-purpose amplifier.

Vicor explained that users who adopt the PI37xx Cool-Power ZVS buck-boost regulators, which offer the highest-level combination of operating voltage range, efficiency, density, and thermal performance while providing online design, system analysis, and simulation tools, can quickly and cost-effectively establish high-density, high-performance, and high-reliability power systems.