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  Synchronous Boost Converter with Fault Handling Generates 5V at 500mA in 1cm2 of Board Space &mdash LT Journal
  PDF, 497 Kb, Datei veröffentlicht: Sep 1, 2009
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  DESIGN IDEAS L Synchronous Boost Converter with
  Fault Handling Generates 5V at
  500mA in 1cm2 of Board Space
  by Eddy Wells Introduction Lithium-Ion to 5V, 2.5W
  Converter current. Requiring only an inductor
  and input/output filter capacitors,
  the entire converter occupies only
  about 1cm2 of board space. The IC
  includes internal compensation, the
  output divider, and soft-start circuitry
  to minimize external components. In
  shutdown, the LTC3529 disconnects
  the output from the input and draws
  less than 1ВµA from the source.
  In fixed frequency PWM mode, the
  efficiency for a typical Li-Ion source to
  5V peaks at 92%, as shown in Figure
  4, and remains above 80% for load currents greater than 30mA. The LTC3529
  delivers up to 500mA of current at a
  5V output and is therefore suitable for
  both low and high power USB applications. As with any DC/DC converter,
  a tradeoff exists between switching
  4.7ВµH 2.5V …

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Herstellerklassifikation

• Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost

Andere Namen:

LTC3529EDCBPBF, LTC3529EDCB PBF