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MPQ2143 - Synchronous Step-Down Switcher

Description

The MPQ2143 is a monolithic, step-down, switch-mode converter with internal power MOSFETs.

to-5.5V input voltage with excellent load and line regulation.

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

Features

  • Guaranteed Industrial/Automotive Temp.
  • Wide 2.5V-to-5.5V Operating Input Range.
  • Output Voltage as Low as 0.6V.
  • 100% Duty Cycle in Dropout.
  • Up to 3A Output Current.
  • Low IQ: 40µA.
  • 80mΩ and 40mΩ Internal Power MOSFET Switches.
  • Default 1.2MHz Switching Frequency.
  • EN and Power-Good for Power Sequencing.
  • Cycle-by-Cycle Over-Current Protection.
  • Auto Discharge at Power Off.
  • Short-Circuit Protect.

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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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DESCRIPTION The MPQ2143 is a monolithic, step-down, switch-mode converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V–to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V. Constant-on-time control provides fast transient response and eases loop stabilization. Faultcondition protections include cycle-by-cycle current limiting and thermal shutdown. The MPQ2143 is available in small TSOT23-8 package and requires only a minimal number of readily-available standard external components. The MPQ2143 is ideal for a wide range of applications including high-performance DSPs, FPGAs, smartphones, portable instruments, and DVD drivers. TYPICAL APPLICATION MPQ2143 3A, 5.5V, 1.
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