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MIC4950 - 5A Buck Regulator

General Description

The MIC4950 is a highly efficient, 5A synchronous buck regulator with ultra-fast transient response.

It is perfectly suited for supplying processor core and I/O voltages from a 5V or 3.3V bus.

The MIC4950 provides a switching frequency up to 3.3 MHz while achieving peak efficiencies up to 95%.

Key Features

  • Input Voltage: 2.7V to 5.5V.
  • 5A Output Current.
  • Up to 95% Efficiency.
  • Up to 3.3 MHz Operation.
  • Safe Start-Up Into a Pre-Biased Output.
  • Power Good Output.
  • Ultra-Fast Transient Response.
  • Low Output Voltage Ripple.
  • Low RDS(ON) Integrated MOSFET Switches.
  • 0.01 µA Shutdown Current.
  • Thermal Shutdown and Current-Limit Protection.
  • Output Voltage as Low as 0.7V.
  • 3 mm x 4 mm 10-Lead FDFN.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MIC4950 Hyper Speed Control® 5A Buck Regulator Features • Input Voltage: 2.7V to 5.5V • 5A Output Current • Up to 95% Efficiency • Up to 3.3 MHz Operation • Safe Start-Up Into a Pre-Biased Output • Power Good Output • Ultra-Fast Transient Response • Low Output Voltage Ripple • Low RDS(ON) Integrated MOSFET Switches • 0.01 µA Shutdown Current • Thermal Shutdown and Current-Limit Protection • Output Voltage as Low as 0.7V • 3 mm x 4 mm 10-Lead FDFN • –40°C to +125°C Junction Temperature Range Applications • DTVs • Set-Top Boxes • Printers • DVD Players • Distributed Power Supplies General Description The MIC4950 is a highly efficient, 5A synchronous buck regulator with ultra-fast transient response. It is perfectly suited for supplying processor core and I/O voltages from a 5V or 3.3V bus.