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Vishay SiC47x Series 4.5 V to 55 V input

The SiC47X is a family of wide input voltage high efficiency synchronous buck regulators with integrated high side and low side power MOSFETs

Vishay SiC47x Series product picture

The SiC47X is a family of wide input voltage high efficiency synchronous buck regulators with integrated high side and low side power MOSFETs. Its power stage is capable of supplying high continuous current at up to 2 MHz switching frequency. This regulator produces an adjustable output voltage down to 0.8 V from 4.5 V to 55 V input rail. SiC47X’s architecture delivers ultrafast transient response with minimum output capacitance and tight ripple regulation at very light load.

 

Key features

  • Single supply operation from 4.5 V to 55 V input voltage
  • Adjustable output voltage down to 0.8 V
  • Scalable solution 3 A (SiC474), 5 A (SiC473),
  • ± 1 % output voltage accuracy at -40 °C to +125 °C


Additional features

  • Highly efficient
  • 98 % peak efficiency
  • 4 μA supply current at shutdown
  • 235 μA operating current not switching
  • Highly configurable
  • Adjustable switching frequency from 100 kHz to 2 MHz
  • Adjustable soft start and adjustable current limit
  • 3 modes of operation, forced continuous conduction, power save or ultrasonic
  • Robust and reliable
  • Output over voltage protection
  • Output under voltage / short circuit protection with auto retry
  • Power good flag and over temperature protection
  • Supported by Vishay PowerCAD online design simulation
  • Design support tools
  • PowerCAD online design simulation (vishay.transim.com)
  • External component calculator (www.vishay.com/doc?75760)
  • Schematic, design, BOM, and gerber files (www.vishay.com/doc?75763)

 

Applications

  • Industrial and automation
  • Home automation
  • Industrial and server computing
  • Networking, telecom, and base station power supplies
  • Wall transformer regulation
  • Battery management systems

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