EV4460DQ-00A

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2.5A, 4MHz, 36V Step-Down Converter Evaluation Board

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Product Description

The EV4460DQ-00A is an evaluation board for the MP4460, a high frequency step-down regulator with an integrated power MOSFET.

The wide 4.5V to 36V input range accommodates a variety of step-down applications, including those in an automotive input environment. A 100µA operational quiescent current makes it attentive for battery-powered applications.

The frequency foldback helps prevent inductor current runaway during startup, and thermal shutdown provides reliable, fault tolerant operation.

By switching at 4MHz, the MP4460 is able to prevent EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications, Electrical specifications.

Product Features

  • 100?A Quiescent Current
  • 3A Peak Switch Current
  • 150m? Internal Power MOSFET
  • Up to 4MHz Programmable Switching Frequency
  • Ceramic Capacitor Stable
  • Internal Soft-Start
  • Internally Set Current Limit without a Current Sensing Resistor
  • Up to 95% Efficiency
  • Output Adjustable from 0.8V to 30V

Parametrics

  • IC Supported 1MP4460

Monolithic IC

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IC Details

The MP4460 is a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. It provides 2.5A output with current mode control for fast loop response and easy compensation.  The wide 4.5V to 36V input range accommodates a variety of step-down applications, including those in an automotive input environment. A 100µA operational quiescent current allows use in battery-powered applications.  High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses.  The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. In some applications, such as AM radio and ADSL applications, in which the device is sensitive to frequency band, the MP4460 can avoid the related EMI problem by setting the frequency at 4MHz. The MP4460 is available in a small 3x3mm QFN10 package.

Programmable