60V ZVS regulator operates down to -55°C

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By Nick Flaherty

Vicor has launched a zero voltage switching (ZVS) buck-boost regulator with an extended operating temperature range of -55 to +115°C and optional Tin-Lead BGA packaging.

The PI3740 is a high-density and high-efficiency buck boost regulator with an 8 – 60V input voltage range and supports output voltages from 10 – 50V. The device offers up to 140W in a 10x14mm SiP package and higher power delivery can be achieved with additional devices in parallel.  The ZVS switching topology also enables efficiency up to 96 per cent. 

The SiP package for the ZVS regulator means it requires only an external inductor and a minimal number of capacitors to form a complete DC-DC switching mode buck-boost regulator. The 1MHz switching frequency reduces the size of the external filtering components, improves power density, and enables fast dynamic response to line and load transients up to the rated input voltage without sacrificing efficiency while supporting large DC to DC conversion ratios. The device can also be configured to operate in constant current mode.

An LGA version operates from -40 to +115°C.



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