ELECTRONICS: Picor, a subsidiary of Vicor Corporation announced the introduction of the PI3101 Cool-Power™ high-density isolated dc-dc converter delivering 60W of output power in half the size of existing solutions, setting a new standard for power density by delivering over 105W per square inch. The PI3101 combines isolation, voltage transformation and output regulation into a high density, surface-mount Power-System-in-Package (PSiP) platform with a tiny footprint (0.57 sq inches) and very low profile (0.27 inches), making it ideal for applications where board space, airflow and height dimensions are critical.
The PI3101 operates over a wide input voltage range of 36V to 75V dc while providing a regulated 3.3V output at up to 18A output current. The PI3101 can withstand input voltage transients of up to 100V for 100ms and provides 2250V input-to-output isolation.
The PI3101 can provide high density power conversion and isolation at the point-of-load, reducing overall solution size while also eliminating an additional conversion stage that degrades overall electrical efficiency. The PI3101 can replace sixteenth bricks or discrete based designs with 50% reduction in total solution area. The Cool-Power family of products will allow the system designer the flexibility to place the required isolated voltage at the point-of-load virtually anywhere it is needed, regardless of topology of the bus architecture, as long as 48V are available.
The Cool-Power family is built on a proprietary ZVS topology using advanced control silicon integration, state of the art planar magnetics and high performance power semiconductor technology enabling switching frequencies in excess of 1MHz. The PI3101 provides the system designer with a simple solution that requires very few external components and achieves up to 87% efficiency. Fast transient response to dynamic loads limits the requirement for output bulk capacitance and EMI performance is significantly improved due to the inherent low noise and high frequency characteristics of the product.
The high density, surface-mount PSiP packaging platform facilitates PCB layout optimization, offers the designer the opportunity to employ a variety of cooling techniques and protects the circuit components against mechanical and ambient factors, thus improving reliability.
The PI3101 is fully equipped with a variety of programmable features including: +/-10% output voltage trimming, programmable soft-start capability, remote on/off ENABLE and an accurate temperature monitor function that provides an analog output voltage proportional to the internal temperature of the product, serving also as a fault alarm. The PI3101 is self-protected against various fault conditions including: input over-voltage and under-voltage lockout with auto-restart capability, over-temperature and output over-voltage protection with auto- restart capability and a dual current limit threshold to protect against short circuits and overload conditions.
The PI3101 is available in a 0.87 x 0.65 x 0.27 inches surface mountable PSiP package and is available at $29.97 for 1,000-piece quantities. Prices are in US dollars and are subject to change. The PI3101 is sampling now with full production volumes expected by the end of the second quarter of 2010.
-Edited by Kelsey Anderson