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  0.25in 2 x 1.8mm Dual Output Converter for Li-Ion to 3.3V and 1.8V &mdash LT Journal
  PDF, 296 Kb, Archivo publicado: jun 14, 2007
  Extracto del documento

  DESIGN IDEAS L 0.25in2 × 1.8mm Dual Output
  Converter for Li-Ion to 3.3V and 1.8V
  by John Canfield Introduction
  One quarter inch square. That is all
  the area needed for a complete Li-Ion
  to dual output, buck and buck-boost
  converter. FigureВ 1 shows a compact
  dual output converter made possible
  by the LTC3522—a complete, high
  efficiency, dual rail power supply solution in a 3mm Г— 3mm QFN. As shown,
  only a few external components are
  required, and they can all be low profile
  (≤1mm)—perfect for the demanding
  space requirements of even the most
  compact portable electronic devices.
  The LTC3522 combines a monolithic
  buck-boost converter and synchronous buck converter in a single, low
  profile 0.75m Г— 3mm Г— 3mm 16-lead
  QFN. Soft-start and feedback loop
  compensation circuitry is included in
  the IC. An entire application circuit
  for a dual converter requires only
  the IC, inductors, bypass capacitors …

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Clasificación del fabricante

• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck
• Power Management > PMIC & Multifunction > Multitopology DC/DC
• Power Management > Switching Regulator > Buck-Boost Regulators > Internal Power Switch Buck-Boost

Otros nombres:

LTC3522EUDPBF, LTC3522EUD PBF