Exar Corporation introduces the XR79120 – a 20A single output, synchronous step-down power module in a compact 12mm x 14mm x 4mm footprint. Although small, the XR79120 still offers greater than 93% peak efficiency and leverages Exar’s patented advanced constant on-time (COT) control architecture across a 4.5V to 22V input voltage range. The XR79120 provides an easy to use, fully integrated power converter integrating MOSFETs, inductors, and internal input and output capacitors.
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QFN-based package technology provides superior thermal performance, eases electrical debugging and improves manufacturability with higher assembly yield and the ability to visually inspect solder joints. At 50°C with no airflow, no thermal de-ratings are required for output voltages of 1.8V and below.
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