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  1.2A Monolithic Buck Regulator Shrinks Supply Size and Cost with Programmable Output Current Limit &mdash LT Journal
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  L DESIGN FEATURES 1.2A Monolithic Buck Regulator
  Shrinks Supply Size and Cost with
  Programmable Output Current Limit
  by Tom Sheehan Introduction
  Power supplies are often overqualified
  for their job. This is because power
  ICs often specify a current limit that
  is more than twice the rated output
  current of the device. The power supply
  components are sized to handle the
  maximum current that the IC can deliver, even if loads are unlikely to draw
  that current during normal operation.
  The components are bigger and more
  expensive than they need to be.
  There is, however, an alternative:
  set an accurate maximum output current on the supply once the real world
  load is known. Accurately setting the
  maximum output current reduces the
  required current rating of the regulator’s power path components, thus
  replacing big, expensive components
  with smaller, less expensive ones.
  A limit on the regulator’s maximum output limits the maximum power
  dissipation of both the supply and …

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• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck

其他名称:

LT3653EDCBTRPBF, LT3653EDCB TRPBF