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  Multiple Power Sources No Problem for 1A, Low Noise Buck-Boost Converter with 1.8V-5.5V Input Voltage Range &mdash LT Journal
  PDF, 2.4 Mb, Archivo publicado: oct 18, 2012
  Extracto del documento

  design features Multiple Power Sources No Problem for 1A, Low Noise
  Buck-Boost Converter with 1.8V–5.5V Input Voltage Range
  Genesia Bertelle Users expect their portable devices to operate from a range of power sources including
  USB, wall adapters and various types of batteries—alkaline, lithium-ion and LiFePO4.
  The LTCВ®3536 monolithic synchronous buck-boost converter easily accommodates
  a variety of power sources by efficiently operating in both buck and boost modes
  from an input voltage range of 1.8V to 5.5V. No complicated topology is required
  to accommodate power source inputs above, below or equal to the output. DESIGN VERSATILITY At 3.3V output, a load current of up
  to 1A can be supported over the entire
  lithium-ion input voltage range; 300m A of
  load current is supported when the input
  is 1.8V. The 1% accurate output voltage is programmable from 1.8V to
  5.5V via an external resistor divider.
  The switching frequency of the LTC3536 is
  user programmable from 300kHz to 2MHz
  via a single external resistor, allowing
  the converter to be optimized to meet the
  space and efficiency requirements of each 25 transient response regardless of inductor value and output capacitor size. COMPETITIVE BUCK-BOOST
  fSW = 1.3MHz 15
  5 Depending on the application requirements, a designer can prioritize light load
  efficiency or minimize supply noise by
  choosing from two operating modes: Burst
  ModeВ® operation and PWM operation, …

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• Power Management > Switching Regulator > Buck-Boost Regulators > Internal Power Switch Buck-Boost

Otros nombres:

LTC3536EMSEPBF, LTC3536EMSE PBF