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LT1934-1

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  Micropower SOT-23 Buck Regulator Accepts Inputs to 34V &mdash LT Journal
  PDF, 441 Kb, Archivo publicado: marzo 1, 2003
  Extracto del documento

  DESIGN FEATURES Micropower SOT-23 Buck Regulator
  by Jeff Witt
  Accepts Inputs to 34V
  Introduction D2 The LT1934 is a micropower buck
  regulator with an internal 400mA
  power switch. It provides up to 300mA
  output current, while consuming
  just 12ВµA of quiescent current, an
  important feature for always-on battery-powered applications such as
  laptop computer standby supplies
  or remote instrumentation that must
  operate for years from primary batteries. Its wide input voltage range of
  3.4V to 34V makes it applicable to
  a variety of power sources including
  24V industrial supplies, automotive
  batteries and unregulated wall transformers. 3.3V 250mA Supply from 24V
  Input Consumes Just 15ВµA Figure 1 shows a 3.3V/250mA supply
  that accepts inputs from 4.5V to 34V.
  With the output in regulation and with
  no load, the input current with VIN =
  24V is less than 15ВµA. Input current
  falls to less than 1ВµA when the LT1934
  is placed in shutdown mode by pulling …

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

Otros nombres:

LT1934IS6TRPBF, LT1934IS6 TRPBF