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MIC4690

500KHz 1A SuperSwitcher™ Buck Regulator

Status: In Production

Features:

  • SO-8 package with over 1A output current
  • Fixed 500kHz operation
  • Wide 4V to 34Vinput voltage range
  • Output voltage adjustable to 1.23V
  • All surface mount solution
  • Internally compensated with fast transient response
  • Up to 85% efficiency
  • Overcurrent protection
  • Frequency foldback short-circuit protection
  • Thermal shutdown
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC4690 SuperSwitcher™ is an easy-to-use, 500kHz step-down PWM voltage regulator. The MIC4690 achieves over 1A of continuous output current over a wide input voltage range in an 8-lead SO (small outline) package.

The high switching frequency of the MIC4690 allows the smallest surface-mount inductors and capacitors to be used. Internal compensation ensures fast transient response and a minimum amount of external components.

The MIC4690 features a power SO-8 package with a special lead frame that allows over 1A of continuous current. The MIC4690, housed in an SO-8, can replace larger TO-220 and TO-263 packages in many applications.

The MIC4690 allows for a high degree of safety. It has a wide input voltage range of 4V to 34V, allowing for it to be used in applications where input voltage transients may be present. Built-in safety features include over-current protection, frequency foldback protection, and thermal shutdown.

The MIC4690 is available in an 8-lead SO package with a junction temperature range of -40°C to +125°C.

Additional Features
    • SO-8 package with over 1A output current
    • Fixed 500kHz operation
    • Wide 4V to 34Vinput voltage range
    • Output voltage adjustable to 1.23V
    • All surface mount solution
    • Internally compensated with fast transient response
    • Up to 85% efficiency
    • Overcurrent protection
    • Frequency foldback short-circuit protection
    • Thermal shutdown
Parametrics
Name
Value
Regulator Type
Step Down (Buck)
# of Outputs
1
Input Voltage Range Min (V)
4
Input Voltage Range Max (V)
34
Output Voltage Range Min (V)
1.23
Output Current (mA) max
1300
Quiescent Current (mA) typ
7
Switching Frequency (kHz)
500
Operating Temp Range
-40 to 125
Vfb (V)
1.23
Duty Cycle Max (%)
0.93
SHUTDOWN Current (µA) (Typ)
50

Documents

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Data Sheet

11/05/2015
275KB

Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC4690YM
0.078000
0.180842
8
SOIC
3.9mm
NiPdAu
e4
MIC4690YM-TR
0.078000
0.238400
8
SOIC
3.9mm
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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