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  Monolithic 2A Buck Regulator Plus Linear Regulator Simplifies Wide Input Voltage Applications &mdash LT Journal
  PDF, 540 Kb, Archivo publicado: enero 14, 2008
  Extracto del documento

  DESIGN FEATURES L Monolithic 2A Buck Regulator
  Plus Linear Regulator Simplifies
  Wide Input Voltage Applications
  by Rich Philpott Introduction
  Wide ranging voltage sources—such
  as automotive batteries, unregulated
  wall transformers, and industrial
  power supplies—require regulation
  to provide stable output voltages
  during harsh input transient conditions. Simple, robust and relatively
  inexpensive linear regulators offer one
  solution. They produce low output
  ripple and offer excellent power supply ripple rejection, but low efficiency,
  high power dissipation and thermal
  constraints are problems at high input-to-output ratios.
  The typical alternative to the linear
  solution is a high voltage monolithic
  step-down switching regulator. Switching regulators offer high efficiency,
  excellent line and load regulation, and
  good dynamic response, but systems
  with multiple outputs require multiple
  switchers. This can quickly drive up
  the power supply cost, space requirements, design effort and noise. …

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Clasificación del fabricante

• Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck | Buck Regulator Plus LDO
• Power Management > PMIC & Multifunction > Multitopology DC/DC
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

Otros nombres:

LT3500HDDPBF, LT3500HDD PBF