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MP2158AGQH - Synchronous Step-Down Converter

Download the MP2158AGQH datasheet PDF. This datasheet also covers the MP2158A variant, as both devices belong to the same synchronous step-down converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The MP2158A is a monolithic step-down, switch-mode converter with built-in internal power MOSFETs.

It achieves 1A of 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.

Key Features

  • Very Low IQ of 17μA.
  • Default 1.5MHz Switching Frequency.
  • 1.5% VFB Accuracy.
  • EN and Power Good for Power Sequencing.
  • Wide 2.5V to 6V Operating Input Range.
  • Output Adjustable from 0.6V.
  • Up to 1A of Output Current.
  • 100% Duty Cycle in Dropout.
  • 120mΩ and 90mΩ Internal Power MOSFET Switches.
  • Cycle-by-Cycle Over-Current Protection.
  • Short-Circuit Protection with Hiccup Mode.
  • Stable with Low ESR Output Ceramic Capacitors.
  • Available in a QF.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MP2158A-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MP2158A Synchronous Step-Down Converter
MP2158 Synchronous Step Down Switcher
MP2158GQH Synchronous Step Down Switcher
MP2151 Synchronous Step-Down Converter
MP2151GTF 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
The Future of Analog IC Technology MP2158A 1A, 6V, 1.5MHz, 17μA IQ, COT Synchronous Step-Down Converter in Ultra-Small 2x1.5mm QFN-8 DESCRIPTION The MP2158A is a monolithic step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 1A of 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 MP2158A is available in a small QFN-8 (1.5mmx2mm) package and requires only a minimal number of readily available, standard, external components.