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MPQ2179 - Synchronous Step-Down Converter

General Description

The MPQ2179 is a monolithic, step-down switch-mode converter with built-in internal power MOSFETs.

The device achieves 3A of peak output current from a 2.5V to 5.5V input voltage range, with excellent load and line regulation.

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

Key Features

  • Wide 2.5V to 5.5V Operating Input Voltage Range.
  • Up to 3A Peak Output Current.
  • 2.4MHz Switching Frequency.
  • EN for Power Sequencing.
  • 1% FB Accuracy.
  • Output Adjustable from 0.6V.
  • 65mΩ and 35mΩ Internal Power MOSFET Switches.
  • 100% Duty On.
  • Output Discharge.
  • Power Good (PG).
  • External Soft Start (SS) Control.
  • Output Over-Voltage Protection (OVP).
  • Short-Circuit Protection (SCP) with Hiccup Mode.
  • Forced Continuous Conduction Mode (F.

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DESCRIPTION The MPQ2179 is a monolithic, step-down switch-mode converter with built-in internal power MOSFETs. The device achieves 3A of peak output current from a 2.5V to 5.5V input voltage range, with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V. Constant-on-time (COT) control provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown. The MPQ2179 is ideal for a wide range of applications, including automotive infotainment systems, clusters, and telematics. The MPQ2179 requires a minimal number of readily available, standard external components, and is available in an ultra-small QFN-8 (1.5mmx2mm) package. MPQ2179 5.5V, Peak 3A, 2.