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  High Efficiency, Low Input Voltage, Synchronous Buck Controller Drives up to 15A Load Current &mdash LT Journal
  PDF, 406 Kb, Archivo publicado: nov 21, 2006
  Extracto del documento

  DESIGN IDEAS L High Efficiency, Low Input Voltage,
  Synchronous Buck Controller Drives
  by Joseph Duncan
  up to 15A Load Current
  Introduction IPRG The LTC3822 is a synchronous stepdown DC/DC converter that drives
  external N-channel power MOSFETs
  to maximize average current drive for
  the lowest cost. Its No RSENSE constant
  frequency architecture minimizes the
  number of external components, and
  a programmable frequency of up to
  750kHz allows the use of small surface-mount inductors and capacitors.
  This DC/DC controller is optimized
  for 3.3VIN and Lithium-Ion applications allowing VOUT as low as 0.6V
  while maintaining 1% precision. The
  all N-channel MOSFET drive simplifies component selection as well as
  drastically increasing the current
  capabilities of a typical circuit. Even
  with 3.3V gate drive, the LTC3822 is
  capable of controlling more than 15A
  load current while maintaining high
  efficiency. RUN ITH LTC3822 SW GND 59k GND VOUT
  1.8V …

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

Otros nombres:

LTC3822EMSEPBF, LTC3822EMSE PBF