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MP2159 - COT Synchronous Step Down Switcher

Description

The MP2159 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.

Features

  • Very Low IQ: 17μA.
  • Default 1.5MHz Switching Frequency.
  • EN and Power Good for Power Sequencing.
  • 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.
  • Available in a TSOT23-8 Package.

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Full PDF Text Transcription

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The Future of Analog IC Technology DESCRIPTION The MP2159 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 MP2159 is available in the small TSOT23-8 package and requires a minimum number of readily available standard external components. The MP2159 is ideal for a wide range of applications including High Performance DSPs, FPGAs, PDAs, and portable instruments. TYPICAL APPLICATION MP2159 1A, 6V, 1.
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