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MP1583 - 385KHz Step-Down Converter

General Description

The MP1583 is a step-down regulator with a built-in internal Power MOSFET.

It achieves 3A of 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.

Key Features

  • 3A Output Current.
  • Programmable Soft-Start.
  • 100mΩ Internal Power MOSFET Switch.
  • Stable with Low ESR Output Ceramic Capacitors.
  • Up to 95% Efficiency.
  • 20μA Shutdown Mode.
  • Fixed 385KHz Frequency.
  • Thermal Shutdown.
  • Cycle-by-Cycle Over Current Protection.
  • Wide 4.75V to 23V Operating Input Range.
  • Output Adjustable from 1.22V to 21V.
  • Under-Voltage Lockout.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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The Future of Analog IC Technology DESCRIPTION The MP1583 is a step-down regulator with a built-in internal Power MOSFET. It achieves 3A of 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. An adjustable soft-start reduces the stress on the input source at startup. In shutdown mode the regulator draws 20μA of supply current. The MP1583 requires a minimum number of external components, providing a compact solution.