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MPQ2143DJ - Synchronous Step-Down Switcher

Download the MPQ2143DJ datasheet PDF. This datasheet also covers the MPQ2143 variant, as both devices belong to the same synchronous step-down switcher family and are provided as variant models within a single manufacturer datasheet.

General 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.

Key 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MPQ2143-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MPQ2143DJ-AEC1 Synchronous Step-Down Switcher
MPQ2143 Synchronous Step-Down Switcher
MPQ2143H 3A 5.5V 2.0MHz Synchronous Step Down Switcher
MPQ2143HGD 3A 5.5V 2.0MHz Synchronous Step Down Switcher
MPQ2122 SYNC Buck Regulator

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.

View original datasheet text
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.