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  60V 2MHz Buck-Boost Controllers Regulate High Power Voltage and Current with High Efficiency and Low EMI &mdash DN567
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  60V 2MHz Buck-Boost Controllers Regulate High Power
  Voltage and Current with High Efficiency and Low EMI
  Design Note 567
  Keith Szolusha
  Synchronous buck-boost controllers are versatile and
  highly efficient. They can produce high power as both a
  boost and a buck with a single inductor, keeping power
  supply design simple. Normally, a buck-boost controller
  in a high power application is operated at a standard
  or low switching frequency, this maximizes efficiency
  and avoids complications related to shoot-through and
  switch blanking time, which can arise in synchronous
  rectification at high frequencies. Nevertheless, a high
  frequency 2MHz buck-boost controller with a smaller
  inductor ensures that the EMI content resides above
  the AM frequency band. currents, such as 10A. Such high peak currents would
  burn up the small IC packages of typical integrated
  converters, but external 3mm Г— 3mm synchronous
  MOSFETs can handle this power. The MOSFETs can be
  arranged in tight quarters with hot-loop capacitors for
  very low EMI. The unique peak switch current sense
  amplifier architecture places the sense resistor next to
  the power inductor, outside the critical input and output …

模型线

制造商分类

• Power Management > Switching Regulator > Buck-Boost Regulators > External Power Switch Buck-Boost
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

其他名称:

LT8390AIFEPBF, LT8390AIFE PBF