The MP2403 is a monolithic synchronous buck regulator. The device integrates a 150mΩ high side MOSFET and a 80mΩ low side MOSFET that provide 3A continuous load current over a wide operating input voltage of 4.6V to 32V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supply current drops to 1μA. This device, available in an 8-pin SOIC package, provides a very compact system solution with minimal reliance on external components.
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