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MIC4930

3.3MHz 3A Hyper Speed Control™ Synchronous Buck Regulator

Status: In Production

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
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

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.

Additional 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
Parametrics
Name
Value
Regulator Type
Step Down (Buck)
# of Outputs
1
Input Voltage Range Min (V)
2.7
Input Voltage Range Max (V)
5.5
Output Voltage Range Min (V)
0.7
Output Current (mA) max
3000
Quiescent Current (mA) typ
0.8
Switching Frequency (kHz)
3300
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 125
Vfb (V)
0.625
SHUTDOWN Current (µA) (Typ)
0.01

Documents

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Data Sheets

  
1949KB

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MIC4930YFL Evaluation Board
MIC4930YFL Evaluation Board ( MIC4930YFL-EV )

This board enables the evaluation of the MIC4930, a fully integrated 5A switching regulator featuring HyperSpeed™ control and Power Good output indication. The MIC4930 is highly efficient throughout the entire output current range, exceeding 95% over 5V input to 3.3V output range. The MIC4930 provides accurate output voltage regulation under the most demanding conditions and responds extremely...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC49300-1.2WR-TR
0.529700
1.440000
5
SPAK
-
Matte Tin
e3
MIC49300-1.5WR-TR
0.529700
1.440000
5
SPAK
-
Matte Tin
e3
MIC49300WR
0.529700
0.666667
5
SPAK
-
Matte Tin
e3
MIC49300-1.8WR
0.529700
0.666667
5
SPAK
-
Matte Tin
e3
MIC49300-0.9WR
0.529700
0.666667
5
SPAK
-
Matte Tin
e3
MIC49300-1.8WR-TR
0.529700
1.440000
5
SPAK
-
Matte Tin
e3
MIC49300-1.5WR
0.529700
0.666667
5
SPAK
-
Matte Tin
e3
MIC49300-1.2WR
0.529700
0.666667
5
SPAK
-
Matte Tin
e3
MIC49300-0.9WR-TR
0.529700
1.440000
5
SPAK
-
Matte Tin
e3
MIC49300WR-TR
0.529700
1.440000
5
SPAK
-
Matte Tin
e3
MIC4930YFL-T5
0.150000
10
VDFN
3x4x0.9mm
Matte Tin
e3
MIC4930YFL-TR
0.000000
10
VDFN
3x4x0.9mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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