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MIC4950 - Hyper Speed Control 5A Buck Regulator

General Description

The MIC4950 is a high-efficiency, 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 3.3MHz 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 3.3MHz operation Safe start-up into a pre-biased output Power Good output Ultra-fast transient response Low output voltage ripple Low RDSON integrated MOSFET switches 0.01µA shutdown current Thermal shutdown and current limit protection Output voltage as low as 0.7V 8-Pin SOIC and 3mm × 4mm DFN-10L.
  • 40°C to +125°C junction temperatur.

📥 Download Datasheet

Datasheet Details

Part number MIC4950
Manufacturer Micrel Semiconductor
File Size 1.14 MB
Description Hyper Speed Control 5A Buck Regulator
Datasheet download datasheet MIC4950 Datasheet

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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 General Description The MIC4950 is a high-efficiency, 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 3.3MHz while achieving peak efficiencies up to 95%. An additional benefit of high-frequency operation is very low output ripple voltage throughout the entire load range with the use of a small output capacitor. The MIC4950 is designed for use with a very small inductor, down to 1µH, and an output ceramic capacitor as small as 10µF, without the need for external ripple injection. A wide range of output capacitor types and values can also be accommodated.