5.5V, 2A, Sync Step-Down Converter with 25μA IQ and Output Discharge in QFN Packages

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Product Description

The MP2152A is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs. The MP2152A achieves 2A of 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.

The constant-on-time (COT) control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown.

The MP2152A is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

The MP2152A requires a minimal number of readily available, standard, external components and is available in 1.2mmx1.6mm UTQFN packages.

Product Features

  • Low IQ: 25μA
  • 1.1MHz Switching Frequency
  • EN for Power Sequencing
  • 1% FB Accuracy
  • Wide 2.5V to 5.5V Operating Input Range
  • Output Adjustable from 0.6V
  • Up to 2A Output Current
  • 75mΩ and 45mΩ Internal Power MOSFET Switches
  • 100% Duty On
  • Output Discharge
  • VOUT Over-Voltage Protection (OVP)
  • Short-Circuit Protection (SCP) with Hiccup Mode
  • Power Good Only for Fixed Output Version
  • Available in UTQFN (1.2mmx1.6mm) Packages


  • fsw (max) (kHz)1100
  • Vin (min) (V)2.5
  • Vin (max) (V)5.5
  • Iout (max) (A)2
  • Vfb (V)0.6
  • Iq (typ) (mA)0.025
  • GradeCatalog
  • PackageUTQFN-6(1.2x1.6)
  • Control ModeCOT
  • Common FeaturesLight-Load Efficiency, Power Good Only for Fixed Output Version, Synchronous Rectification
  • Special Features100% Duty Cycle, Fixed Output, Output Discharge
Quality Policy, Certificates & Reliability Reports
All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.