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  600mA Switching Converter Reduces Noise by Automatically Shifting to a Linear Regulator at Light Loads &mdash LT Journal
  PDF, 453 Kb, Archivo publicado: jun 10, 2005
  Extracto del documento

  DESIGN IDEAS 600mA Switching Converter Reduces
  Noise by Automatically Shifting to a
  Linear Regulator at Light Loads
  by Kevin Soch Introduction Figure 1. The LTC3448 regulator occupies
  less than 0.1in2 of board space. current, and enters linear regulator
  operation when appropriate. The
  crossover between switcher mode
  and linear regulator mode can also
  be controlled externally by driving the
  MODE pin high or low.
  The LTC3448 has a 2.5V to 5.5V
  input voltage range, perfect for single
  VIN
  2.5V TO 5.5V Linear Technology Magazine May 2005 continued on page 32 SW VOUT
  RUN
  LTC3448
  MODE CIN
  4.7ВµF 22pF VFB
  FREQ
  SYNC
  GND Features 474k COUT
  4.7ВµF VOUT
  1.5V 316k Figure 2. LTC3448 minimum component implementation. …

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Clasificación del fabricante

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

Otros nombres:

LTC3448EDDTRPBF, LTC3448EDD TRPBF