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  MOSFETs Make Sense for Tracking and Sequencing Power Supplies &mdash LT Journal
  PDF, 696 Kb, Datei veröffentlicht: Mar 28, 2006
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  L DESIGN FEATURES MOSFETs Make Sense for Tracking
  and Sequencing Power Supplies
  by Thomas DiGiacomo
  Introduction:
  Charge MOSFETs with the
  Task of Supply Control
  In electronic systems with multiple
  supplies, the need for tracking and/or
  sequencing is well established. On the
  one hand, core and I/O power might
  be required to ramp up and down together with less than a diode’s voltage
  drop between them to avoid potentially destructive latch-up. Coincident
  tracking, as shown in Figure 1a, solves
  this problem. On the other hand, in a
  distributed supply chain, some supplies might need to be fully operational
  before others. Supply sequencing,
  as shown in Figure 1d, solves that
  problem. Other systems may require
  simultaneous completion of supply
  ramps (Figure 1b), voltage offsets or
  time delays (Figure 1c), or combinations of such profiles.
  Linear’s line of no-MOSFET tracking
  and sequencing control products, the …

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• Monitor, Control and Protection > Sequencers, Trackers, and Margining Controllers
• Monitor, Control and Protection > Sequencers, Trackers, and Margining Controllers > Tracking Controllers

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LTC2926IUFDTRPBF, LTC2926IUFD TRPBF