MPQ4473

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Industrial Grade, High-Efficiency, Fast-Transient, 3.5A, 36V Synchronous, Step-Down Converter



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Product Description

The MPQ4473 is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter. It offers a compact solution to achieve a 3.5A, continuous-output current over a wide input-supply range with excellent load and line regulation. It provides fast, transient response and good stability for wide input-supply and load range. The MPQ4473 operates at high efficiency over a wide-output-current load range. 
MPQ4473 has full protection features including, short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown (TSD). 
The MPQ4473 requires minimal, readily available, standard, external components, and is available in a compact 3mmx4mm, 20-pin, QFN package.

Configurable

Product Features

  • Wide 4.5V-to-36V Operating Input Range
  • Guaranteed 3.5A, Continuous Output Current
  • Internal 40mΩ High-Side, 20mΩ Low-Side Power MOSFETs
  • Proprietary Switching-Loss-Reduction Technology
  • 1% Reference Voltage
  • Programmable Soft-Start Time
  • Low Drop-Out Mode
  • 200kHz-to-1MHz Switching Frequency
  • SCP, OCP, UVP, and Thermal Shutdown
  • Output Adjustable from 0.8V to 0.9×VIN
  • Available in a 3mmx4mm, 20-pin, QFN Package
  • Available in AEC-Q100 Grade 1

Parametrics

  • fsw (max) (kHz)1000
  • Vin (min) (V)4.5
  • Vin (max) (V)36
  • Iout (max) (A)3.5
  • Isw Limit (typ) (A)6.6
  • Vfb (V)0.815
  • Iq (typ) (mA)0.5
  • Regulated Outputs1
  • Vout (max) (V)32.4
  • Vout (min) (V)0.8
  • GradeIndustrial
  • PackageQFN-20 (3x4)
  • Control ModeCOT
  • Common FeaturesExternal Soft Start, Light-Load Efficiency, Power Good, Synchronous Rectification
  • Special FeaturesProgrammable Frequency

High Efficiency, Fast-Transient, 3.5A, 36V Step-Down Converter Evaluation Board

The EV4473-L-00A is an evaluation board for the MPQ4470, a high-efficiency step-down regulator with integrated power MOSFETs.

MPQ4470 offers a very compact solution to achieve a 5A, continuous-output current over a wide input-supply range with excellent load and line regulation. It also provides fast transient response and good stability for wide input-supply and load range.

The EV4473-L-00A is a fully assembled and tested evaluation board. It generates a +3.3V output voltage at load current up to 5A from an 4.5V to 36V input range. Switching frequency is set at 500kHz.

This evaluation board is available for both EV4473 and EVQ4473.

$50.00 + tax


Reference Materials


Quality Policy, Certificates & Reliability Reports
All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.