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MP2259 - Step-Down Converter

General Description

The MP2259 is a monolithic integrated stepdown switch mode converter with an internal power MOSFET.

It achieves 1A 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

  • 1A Output Current.
  • 0.5Ω Internal Power MOSFET Switch.
  • Stable with Low ESR Output Ceramic Capacitors.
  • Up to 92% Efficiency.
  • 0.1μA Shutdown Mode.
  • Fixed 1.4MHz Frequency.
  • Thermal Shutdown.
  • Cycle-by-Cycle Over Current Protection.
  • Wide 4.5V to 16V Operating Input Range.
  • Output Adjustable from 0.81V to 14V.
  • Available in TSOT23-6 and SOT23-6 Packages.

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The Future of Analog IC Technology DESCRIPTION The MP2259 is a monolithic integrated stepdown switch mode converter with an internal power MOSFET. It achieves 1A 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. The MP2259 requires a minimum number of readily available standard external components. The MP2259 is available in TSOT23-6 and SOT23-6 packages. MP2259 1A, 16V, 1.4MHz Step-Down Converter FEATURES • 1A Output Current • 0.5Ω Internal Power MOSFET Switch • Stable with Low ESR Output Ceramic Capacitors • Up to 92% Efficiency • 0.1μA Shutdown Mode • Fixed 1.