MIC4930 Series

3.3MHz 3A Hyper Speed Control™ Synchronous Buck Regulator

Catalog

3.3MHz 3A Hyper Speed Control™ Synchronous Buck Regulator

Part	Synchronous Rectifier	Voltage - Output (Max) [Max]	Voltage - Input (Min) [Min]	Mounting Type	Current - Output	Topology	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Min/Fixed)	Function	Package / Case	Frequency - Switching [Max]	Output Type	Number of Outputs	Supplier Device Package	Voltage - Input (Max) [Max]	Output Configuration
Microchip Technology MIC4930YFL-TR		5.5 V	2.7 V	Surface Mount	3 A	Buck	-40 °C	125 ¯C	0.625 V	Step-Down	10-PowerVDFN	3.3 MHz	Adjustable	1	10-DFN (3x4)	5.5 V	Positive

Catalog

3.3MHz 3A Hyper Speed Control™ Synchronous Buck Regulator

Key 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

Description

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 ripple voltage throughout the entire load range with the use of a small output capacitor. The MIC4930 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. The MIC4930 supports safe start-up into a pre-biased output. The MIC4930 is available in a 10-pin 3mm — 4mm DFN package with an operating junction temperature range from -40°C to +125°C. The MIC4930 is pin-to-pin compatible with the 5A-rated MIC4950YFL.