MPQ4462-AEC1

Active
3.5A, 4MHz, 36V Step-Down Converter


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Product Description

The MPQ4462 is a high-frequency, step-down, switching regulator with an integrated, high-side, high-voltage, power MOSFET. It provides a 3.5A output with current-mode control for fast loop response and easy compensation. The wide 3.8V-to-36V input range accommodates a variety of step-down applications, including those in an automotive input environment. A 120µA operational quiescent current allows for battery-powered applications. Switching-frequency scaling allows for high power-conversion efficiency over a wide load range by scaling down the switching frequency at light loads to reduce the switching and gate driving losses. The frequency foldback prevent inductor-current runaway during startup, and thermal shutdown provides reliable and fault tolerant operation. The MPQ4462 can operate at up to 4MHz for EMI-sensitive applications, such as AM radio and ADSL applications. The MPQ4462 is available in both 3mm×3mm QFN10 and SOIC8E packages.

Product Features

  • 120µA Quiescent Current
  • Wide 3.8V-to-36V Input Range
  • 150mO Internal Power MOSFET
  • Up to 4MHz Programmable Switching Frequency
  • Stable with a Ceramic Capacitor
  • Internal Soft-Start
  • Internally-Set Current Limit without a Current Sensing Resistor
  • Output Adjustable from 0.8V to 30V
  • Available in 3mm×3mm QFN10 and SOIC8E Packages.
  • AEC-Q100 Qualified

Parametrics

  • fsw (max) (kHz)4000
  • Vin (min) (V)3.8
  • Vin (max) (V)36
  • Iout (max) (A)3.5
  • Isw Limit (typ) (A)5.5
  • Vfb (typ) (V)0.792
  • Iq (typ) (mA)0.12
  • Regulated Outputs1
  • Vout (max) (V)30
  • Vout (min) (V)0.8
  • GradeAutomotive
  • PackageQFN-10 (3x3), SOIC-8E
  • Control ModeCurrent Mode
  • Common FeaturesLight-Load Efficiency
  • Special FeaturesProgrammable Frequency

Evaluation Kit

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Kit details

The EVQ4462DQ-00A is an evaluation board for the MPQ4462, a high frequency step-down regulator with an integrated power MOSFET.

The MPQ4462 integrates a 100m? MOSFET that provides 3.5A load current over a wide operating input voltage of 6V to 36V. A 5µA shutdown mode quiescent current allows use in battery-powered applications.

Current mode control provides fast transient response and eases loop stabilization. An internal soft-start prevents inrush current at turn-on.

The MPQ4462 is available in compact QFN10 package.

US$ 50.00 + tax