MIC4930 - Micrel Semiconductor

MIC4930 Hyper Speed Control 3A Buck Regulator

The MIC4930 is a high-efficiency, 3A synchronous buck regulator with ultra-fast transient response perfectly suited for supplying processor core and I/O voltages from a 5V or 3.3V bus. The MIC4930 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 rippl.

Features














 Input voltage: 2.7V to 5.5V 3A 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 RDS(ON) integrated MOSFET switches 0.01µA shutdown current Thermal shutdown and current limit protection Output voltage as low as 0.7V 3mm × 4mm DFN-10L
  –40C to +125C junction temperature range Applications




 DTVs Set-top boxes Printers DVD players Distributed power supplies Typical Application Hyper Speed Control is a trademark of Micrel, Inc. Micre.