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  2-Phase Boost Converter Delivers 10W from a 3mm x 3mm DFN Package &mdash DN354
  PDF, 98 Kb, Datei veröffentlicht: Jan 1, 2005
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  advertisement 2-Phase Boost Converter Delivers 10W from a 3mm Г— 3mm
  DFN Package – Design Note 354
  Jesus Rosales
  Introduction
  Small size, high efficiency, low noise and simplicity are
  all key features for battery-powered applications and
  point-of-load converters in low voltage systems. The
  LTC В®3428 is well suited for these applications because
  it offers these features as well as minimum output ripple
  and component count. It can start up with as little as
  1.5V and operates with inputs up to 4.5V. Its dual phase
  architecture allows for an effective switching frequency
  of 2MHz (1MHz/phase), which minimizes inductor and
  capacitor size. ripple frequency. This reduces the peak-to-peak output
  ripple current, which in turn makes it easier to п¬Ѓlter out
  switching frequency ripple and noise. Input ripple current is also reduced, which minimizes stress on other
  components and reduces required input capacitance.
  The circuit in Figure 1 produces only 20mVP-P of output
  voltage ripple, as shown in Figure 2.
  L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks
  of Linear Technology Corporation. All other trademarks are the property of their
  respective owners. Dual Phase Converter Reduces Output Ripple
  The LT3428 incorporates two internal 93mО©, N-channel …

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• Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost

Andere Namen:

LTC3428EDDPBF, LTC3428EDD PBF