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The RT2658 in thermally enhanced VQFN-20L 3.5x4 package is a full featured 6V, 6A synchronous step-down DC/DC converter designed specifically for Double Data Rate (DDR) memory termination, which provides a continuous 6A sink and source current and fixed 1/2 DDQ at output. The current mode COT architecture with external compensation allows the transient response to be optimized over a wide range of loads and achieves nearly constant switching frequency over line, load, and output voltage ranges. The multiple sets of over-current limit and switching frequency offer an optimized power chain for application design. Efficiency is maximized through the integrated 20mΩ/10mΩ MOSFETs, and cycle-by-cycle current limit provides protection against shorted outputs. Output external tracking function, output soft discharge, power good indicating, output droop support are all featured in the RT2658. In addition, the device is specified from 0°C to 85°C to perform an excellent regulation with an accurate 1% reference voltage over temperature.
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