MPQ4473

Active
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.

Product Features

  • Wide 4.5V-to-36V Operating Input Range
  • Guaranteed 3.5A, Continuous Output Current
  • Internal 40mO High-Side, 20mO 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?IN
  • 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 (typ) (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

Evaluation Kit

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Kit details

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.

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.

US$ 50.00 + tax