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MP2158 - Synchronous Step Down Switcher

General Description

The MP2158 is a monolithic step-down switch mode converter with built-in internal power MOSFETs.

It achieves 1A continuous output current from a 2.5V to 6V input voltage with excellent load and line regulation.

The output voltage can be regulated as low as 0.6V.

Key Features

  • Very Low IQ: 17μA.
  • Default 1.5MHz Switching Frequency.
  • EN and Power Good for Power Sequencing.
  • Ultra-small 2.0x1.5mm QFN8 Package.
  • Wide 2.5V to 6V Operating Input Range Output Adjustable from 0.6V.
  • Up to 1A Output Current.
  • 100% Duty Cycle in Dropout.
  • 118mΩ and 88mΩ Internal Power MOSFET Switches.
  • Cycle-by-Cycle Over Current Protection.
  • Short Circuit Protect with Hiccup Mode.
  • Stable with Low ESR Output Ceramic Capacitors.

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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 MP2158 1A, 6V, 1.5MHz, 17μA IQ, COT Synchronous Step Down Switcher In Ultra-small 2x1.5mm QFN DESCRIPTION The MP2158 is a monolithic step-down switch mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.5V to 6V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The MP2158 is available in the small QFN8 2.0x1.5mm package and requires a minimum number of readily available standard external components.