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MP2148 - 1A Synchronous Step-down Converter

General Description

The MP2148 is a monolithic, step-down, switchmode converter with built-in internal power MOSFETs.

It achieves 1A continuous output current from a 2.3V-to-5.5V input voltage with excellent load and line regulation.

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

Key Features

  • Low IQ: 11μA.
  • 2.2MHz Switching Frequency.
  • EN for Power Sequencing.
  • Power Good Only for Fixed Output Version.
  • Wide 2.3V-to-5.5V Operating Input Range.
  • Output Adjustable from 0.6V.
  • Up to 1A Output Current.
  • 120mΩ and 80mΩ Internal Power MOSFET Switches.
  • Output Discharge.
  • 100% Duty Cycle.
  • Short-Circuit Protection with Hiccup Mode.
  • Stable with Low ESR Output Ceramic Capacitors.
  • Availa.

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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 MP2148 1A Synchronous Step-down Converter with 11µA Iq in Ultra-small 1x1.5mm QFN DESCRIPTION The MP2148 is a monolithic, step-down, switchmode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.3V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V. The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-bycycle current limiting and thermal shutdown. The MP2148 is available in an ultra-small QFN6 (1.0mmx1.5mm) package and requires a minimal number of readily available standard external components.