2.5V-to-6V Input, 3MHz, 1A Synchronous, Step-Down Converter with AEC-Q100 qualification

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Product Description

The MPQ2128 is a 3MHz, constant-frequency, current-mode, PWM, step-down converter. It has an integrated main switch and synchronous rectifier that make it ideal for low-voltage conversions. The MPQ2128 can supply up to 1A load current from a 2.5V-to-6V input voltage. The output voltage can go as low as 0.6V. Additional features include <1? shutdown current, internal soft-start, cycle-by-cycle over-current protection, short-circuit protection, and thermal shutdown. The MPQ2128 is available in a 2mm?mm 8-pin QFN package.


Product Features

  • Meets Automotive Requirements
  • Highly Efficient: Up to 95%
  • 3MHz Constant-Switching Frequency
  • 1A Available Load Current
  • 2.5V-to-6V Input Voltage Range
  • Output Voltage as Low as 0.6V
  • Current-Mode Control
  • Cycle-by-Cycle Over-Current Protection
  • Short-Circuit Protection
  • Thermal Shutdown
  • <1? Shutdown Current
  • Internal Soft-Start
  • QFN8 (2mm?mm) Package
  • AEC-Q100 Qualified


  • fsw (max) (kHz)3000
  • Vin (min) (V)2.5
  • Vin (max) (V)6
  • Iout (max) (A)1
  • Isw Limit (typ) (A)1.8
  • Max Duty Cycle (%)1
  • Vfb (V)0.594
  • Iq (typ) (mA)0.35
  • Regulated Outputs1
  • Vout (max) (V)6
  • Vout (min) (V)0.6
  • GradeAutomotive
  • PackageQFN-8 (2x2)
  • Control ModeCurrent Mode
  • Common FeaturesSynchronous Rectification
Quality Policy, Certificates & Reliability Reports
All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.