EC3276|2.2A/32V Syn. Rectified Step-Down Converter

EC3276|2.2A/32V Syn. Rectified Step-Down Converter

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General Description

The EC3276 is a monolithic synchronous buck regulator.

The device integrates two 90mΩ MOSFETs, and provides 2.2A of continuous load current over a wide input voltage of 4.75V to 32V.

Current mode control provides fast transient response and cycle-by-cycle current limit.

An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 1µA.

This device,available in an SOP-8(Exposed PAD)package, provides a very compact solution with minimal external components.

Features

  • 2.2A Output Current
  • Wide 4.75V to 32V Operating Input Range
  • Integrated 90mΩ Power MOSFET Switches
  • Output Adjustable from 0.923V to 30V
  • Up to 93% Efficiency
  • Programmable Soft-Start
  • Stable with Low ESR Ceramic Output Capacitors
  • Fixed 600KHz Frequency
  • Cycle-by-Cycle Over Current Protection
  • Input Under Voltage Lockout

Applications

  • Distributed Power Systems
  • Networking Systems
  • FPGA, DSP, ASIC Power Supplies
  • Green Electronics/ Appliances
  • Notebook Computers

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