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AP2953A - 18V Synchronous Rectified Step-Down Converter

General Description

The AP2953A is a monolithic synchronous buck regulator.

The device integrates 100mΩ MOSFETS that provide 3A continuous load current over a wide operating input voltage of 4.75V to 18V.

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

Key Features

  • 3A Output Current.
  • Wide 4.75V to 18V Operating Input Range.
  • Integrated 100mΩ Power MOSFET Switches.
  • Output Adjustable from 0.925V to 15V.
  • Up to 95% Efficiency.
  • Programmable Soft-Start.
  • Stable with Low ESR Ceramic Output Capacitors.
  • Fixed 370KHz Frequency.
  • Cycle-by-Cycle Over Current Protection.
  • Input Under Voltage Lockout.
  • Thermally Enhanced 8-Pin SOP Package Package SOP8-PP 2 3 4 8 7 6 5 Typical.

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Datasheet Details

Part number AP2953A
Manufacturer Chipown
File Size 306.81 KB
Description 18V Synchronous Rectified Step-Down Converter
Datasheet download datasheet AP2953A Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AP2953A Description The AP2953A is a monolithic synchronous buck regulator. The device integrates 100mΩ MOSFETS that provide 3A continuous load current over a wide operating input voltage of 4.75V to 18V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supply current drops below 1μA. This device, available in an 8-pin SOP package, provides a very compact system solution with minimal reliance on external components. Applications  Distributed Power Systems  Networking Systems  FPGA, DSP, ASIC Power Supplies  Green Electronics/ Appliances  Notebook Computers Chipown 3A, 18V Synchronous Rectified Step-Down Converter Features  3A Output Current  Wide 4.