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MIC4682

Precision Current Limit SuperSwitcher™ Buck Regulator

Status: In Production

Features:

  • Programmable output current limit
  • 10% accuracy over temperature
  • Wide operating input voltage range: 4V to 34V
  • Fixed 200kHz PWM operation
  • Power SOIC-8 package allows 2A continuous output current
  • All surface mount solution
  • Internally compensated
  • Less than 1µA typical shutdown-mode current
  • Thermal shutdown protection
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC4682 is an easy-to-use step-down (buck) switch-mode voltage regulator. It features a programmable current limit that allows 10% current limit accuracy over its full operating temperature range. The precision current limit makes the MIC4682 ideal for constant-voltage constant-current applications, such as simple battery chargers. The precision current limit also gives designers the ability to set the maximum output current below the saturation current rating of the inductor. This allows the use of the smallest possible inductors for a given application, saving valuable space and cost.

The MIC4682 is a very robust device. Its 4V to 34V input voltage range allows the MIC4682 to safely be used in applications where voltage transients may be present. Additional protection features include cycle-by-cycle current limiting and over-temperature shutdown. The MIC4682 is available in a thermally optimized power SO-8 package that allows it to achieve 2A of continuous output current.

The MIC4682 requires a minimum number of external components and can operate using a standard series of inductors. Compensation is provided internally for fast transient response and ease of use. The MIC4682 is available in the 8-lead power SOP with a -40°C to +125°C junction temperature range.

Additional Features
    • Programmable output current limit
      • 10% accuracy over temperature
    • Wide operating input voltage range: 4V to 34V
    • Fixed 200kHz PWM operation
    • Power SOIC-8 package allows 2A continuous output current
    • All surface mount solution
    • Internally compensated
    • Less than 1µA typical shutdown-mode current
    • Thermal shutdown protection
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
2000
Quiescent Current (mA) typ
7
Switching Frequency (kHz)
200
Operating Temp Range
-40 to 125
Vfb (V)
1.23
Duty Cycle Max (%)
0.95
SHUTDOWN Current (µA) (Typ)
35

Documents

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Data Sheets

  
907KB

Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC4682YM
0.074000
0.178947
8
SOIC
3.9mm
Matte Tin
e3
MIC4682YM-TR
0.074000
0.238400
8
SOIC
3.9mm
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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