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MIC23051

4MHz 600mA HyperLight Load® Synchronous Buck Regulator w/Voltage ScaLINg

Status: In Production

Features:

  • Input voltage range: 2.7V to 5.5V
  • 600mA output current
  • Fixed output voltage from 0.72V to 3.3V
  • Output voltage scaling option
  • Ultra fast transient response
  • 20µA typical quiescent current
  • 4MHz in CCM PWM operation in normal mode
  • 0.47µH to 2.2µH inductor
  • Low voltage output ripple
  • 25mVpp in HyperLight Load® mode
  • 3mV output voltage ripple in full PWM mode
  • >93% efficiency
  • ~85% at 1mA
  • Micropower shutdown -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 MIC23051 is a high efficiency 600mA PWM synchronous buck (step-down) regulator featuring HyperLight Load®, a patented switching scheme that offers best in class light load efficiency and transient performance while providing very small external components and low output ripple at all loads.

The MIC23051 has an output voltage scaling feature that can toggles between two different voltage levels.

The MIC23051 also has a very low typical quiescent current draw of 20µA and can achieve over 85% efficiency even at 1mA. The device allows operation with a tiny inductor ranging from 0.47µH to 2.2µH and uses a small output capacitor that enables a sub-1mm height solution.

In contrast to traditional light load schemes HyperLight Load® architecture does not need to trade off control speed to obtain low standby currents and in doing so the device only needs a small output capacitor to absorb the load transient as the powered device goes from light load to full load.

At higher loads the MIC23051 provides a constant switching frequency of greater than 4MHz while providing peak efficiencies greater than 93%.

The MIC23051 comes in fixed output voltage options eliminating external feedback components.

Additional Features
    • Input voltage range: 2.7V to 5.5V
    • 600mA output current
    • Fixed output voltage from 0.72V to 3.3V
    • Output voltage scaling option
    • Ultra fast transient response
    • 20µA typical quiescent current
    • 4MHz in CCM PWM operation in normal mode
    • 0.47µH to 2.2µH inductor
    • Low voltage output ripple
      • 25mVpp in HyperLight Load® mode
      • 3mV output voltage ripple in full PWM mode
    • >93% efficiency
    • ~85% at 1mA
    • Micropower shutdown -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)
0.72
Output Current (mA) max
600
Quiescent Current (mA) typ
0.02
Switching Frequency (kHz)
4000
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 125
Duty Cycle Max (%)
80
SHUTDOWN Current (µA) (Typ)
0.01
Light Load Efficiency Mode
Yes

Documents

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Applications Source code

09/14/2017
362KB

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MIC23051-C4YML Evaluation Board
MIC23051-C4YML Evaluation Board ( MIC23051-C4YML-EV )
(Not Recommended for new design)

The MIC23051 is a 600mA 4MHz switching regulator with HyperLight Load™ mode. The MIC23051 is highly efficient throughout the load range and only draws 20μA of quiescent current. The MIC23051 operates from a 2.7V to 5.5V input and features internal power MOSFETs that can supply up to 600mA of output current. It can operate with a maximum duty cycle of 80%.

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Add To Cart
MIC23051-CGYML Evaluation Board
MIC23051-CGYML Evaluation Board ( MIC23051-CGYML-EV )

The MIC23051 is a 600mA 4MHz switching regulator with HyperLight Load™ mode. The MIC23051 is highly efficient throughout the load range and only draws 20μA of quiescent current. The MIC23051 operates from a 2.7V to 5.5V input and features internal power MOSFETs that can supply up to 600mA of output current. It can operate with a maximum duty cycle of 80%.

Learn More
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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC23051-CGYML-TR
0.010900
0.339227
8
VDFN
2x2x0.9mm
NiPdAu
e4
MIC23051-C4YML-TR
0.010900
0.339227
8
VDFN
2x2x0.9mm
NiPdAu
e4
MIC23051-945YML-TR
0.010900
0.339227
8
VDFN
2x2x0.9mm
NiPdAu
e4
MIC23051-16YML-TR
0.010900
0.339227
8
VDFN
2x2x0.9mm
NiPdAu
e4
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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