Product Descriptions

The MP1423 is a step-down regulator with a built in internal Power MOSFET. It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation.

Current mode operation provides fast transient response and eases loop stabilization.

Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. Adjustable soft-start reduces the stress on the input source at turn-on. In shutdown mode the regulator draws 20µA of supply current.

The MP1423 requires a minimum number of readily available external components to complete a 3A step-down DC to DC converter solution.

Product Features

• 3A Output Current

• Programmable Soft-Start

• 110mΩ Internal Power MOSFET Switch

• Stable with Low ESR Output Ceramic Capacitors

• Up to 94 percent Efficiency

• 20µA Shutdown Mode

• Fixed 385KHz Frequency

• Thermal Shutdown

• Cycle-by-Cycle Over Current Protection

• Wide 6V to 23V Operating Input Range

• Output is Adjustable From 1.22V to 21V

• Under Voltage Lockout

Product Applications

• Distributed Power Systems

• Battery Chargers

• Pre-Regulator for Linear Regulators

Product Photos

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