Exar introduced XR79120, a new 20A single output, synchronous step-down power module. This product is the world's smallest compact product with an area of only 12mm x 14mm x 4mm. Despite its small size, the XR79120 still provides peak efficiency of over 93% and utilizes Exar's patented advanced constant on-time (COT) control architecture within an input voltage range of 4.5V to 22V.
The XR79120 provides an easy-to-use, fully integrated power converter that integrates MOSFETs, inductors, and internal input and output capacitors. QFN-based packaging technology can provide excellent thermal performance, simplify electrical commissioning and improve manufacturability, and have a higher assembly yield and the ability to visually inspect solder joints. At 50 ° C without airflow, no thermal derating is required for output voltages of 1.8V and below.
"Providing 20A from a 12V power supply in a 12mm x 14mm x 4mm module makes the device unique in the market," said Jon Cronk, director of marketing for Exar power management products. "By optimizing efficiency, size and heat dissipation performance, the XR79120 has the best power density since the explosion." The
XR79120 is RoHS-compliant, halogen-free, space-saving 74-pin 12mm x 14mm x 4mm QFN package.
