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  140W Monolithic Switching Regulator Simplifies Constant-Current/Constant-Voltage Regulation &mdash LT Journal
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  140W Monolithic Switching Regulator Simplifies
  Constant-Current/Constant-Voltage Regulation
  Eric Young The LT3956 is a monolithic switching regulator that can
  generate constant-current/constant-voltage outputs in buck,
  boost or SEPIC topologies over a wide range of input and
  output voltages. With input and output voltages of up to 80V,
  a rugged internal 84V switch and high efficiency operation, the
  LT3956 can easily produce high power in a small footprint.
  The LTВ®3956 combines key amplifier and
  comparator blocks with a high current/
  high voltage switching regulator in a
  tiny 5mm Г— 6mm package. See Figure 1
  for an example of how little board space
  is needed to produce a complete constant-current, constant-voltage boost
  circuit ideal for LED driving, supercap
  charging or other high power applications that require the added protection
  of input or output current limiting.
  WHAT MAKES THE LT3956 TICK? The big mover in the LT3956 is an
  84V-rated, 90mΩ low side N-MOSFET switch
  with an internally programmed current
  limit of 3.9A (typ). The switching regulator can be powered from a supply as
  high as 80V because the N-MOSFET switch
  driver, the PWMOUT pin driver, and most …

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制造商分类

• Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers | Step-Down (Buck) LED Drivers | Buck-Boost LED Drivers | Multitopology LED Driver

其他名称:

LT3956IUHEPBF, LT3956IUHE PBF