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MP21148GQD - Step-Down Converter

Download the MP21148GQD datasheet PDF. This datasheet also covers the MP21148 variant, as both devices belong to the same step-down converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The MP21148 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs.

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

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

Key Features

  • 2.4MHz Switching Frequency.
  • EN for Power Sequencing.
  • Wide 2.3V-to-5.5V Operating Input Range.
  • Output Adjustable from 0.6V.
  • Up to 1A of Output Current.
  • 120mΩ and 80mΩ Internal Power MOSFET Switches.
  • Output Discharging.
  • 100% Duty Cycle.
  • Short-Circuit Protection (SCP) with Hiccup Mode.
  • Stable with Low ESR Output Ceramic Capacitors.
  • Available in a QFN-6 (1.0mmx1.5mm) Package.
  • Continuous Conduction Mode (CCM).

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MP21148-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MP21148 Step-Down Converter
MP2112 1A Synchronous Step-Down Converter
MP2112DJ 1A Synchronous Step-Down Converter
MP2112DQ 1A Synchronous Step-Down Converter
MP2115 2A Synchronous Step-Down Converter

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
MP21148 1A, Synchronous, Step-Down Converter with CCM DESCRIPTION The MP21148 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs. It can achieve 1A of continuous output current from a 2.3V-to-5.5V 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 in forced CCM provides a fast transient response, low output voltage ripple, and eases loop stabilization. Fault protections include cycle-bycycle current limiting and thermal shutdown. The MP21148 is available in an ultra-small QFN-6 (1.0mmx1.5mm) package and requires a minimal number of readily available, standard, external components.