LT3667EUDD

The LT3667EU DD is a dual output, high current, synchronous step-down regulator that integrates two 6A-rated switches, two low on-resistance 20mΩ-rated power switches, and a 0.8V reference voltage. It is designed to drive both inductive and non-inductive loads. The regulator can provide an output voltage of 12V or lower when V IN is up to 40V.The LT3667EU DD features low quiescent current and excellent efficiency through its synchronous architecture, enabling higher power savings. The device also offers a fast transient response and adjustable delay time for soft-start. The parts are available in a 36-bump DFN package.The LT3667EU DD utilizes a Method of Constant On-Time (MCOT) control in which the peak current mode control loop is bypassed. The current-sense amplifier monitors the output current of each regulator and sets the switching frequency to a value determined by a constant on-time in order to maintain the desired output voltage.The MCOT method provides excellent line-transient and load-transient performance. The LT3667EU DD also offers adjustable “Spread Frequency Ripply” feature to limit the frequency-spread of DCR-coupled inductors, providing superior EMI and output ripple performance in designs using multiple switching regulators.The LT3667EU DD is a great choice for cost-effective, high current synchronous buck regulators. It is ideal for powering many applications requiring > 6A including point-of-load (POL) regulation, computing, automotive, and consumer electronics.