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MIC2171

2.5A 100kHz Switching Regulator

Status: In Production

Features:

  • 2.5A, 65V internal switch rating
  • 3V to 40V input voltage range
  • Current-mode operation, 2.5A peak
  • Internal cycle-by-cycle current limit
  • Thermal shutdown
  • Twice the frequency of the LM2577
  • Low external parts count
  • Operates in most switching topologies
  • 7mA quiescent current (operating)
  • Fits LT1171/LM2577 TO-220 and TO-263 sockets
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2171 is a complete 100kHz SMPS current-mode controller with an internal 65V 2.5A power switch. Although primarily intended for voltage step-up applications, the floating switch architecture of the MIC2171 makes it practical for step-down, inverting, and Cuk configurations as well as isolated topologies. Operating from 3V to 40V, the MIC2171 draws only 7mA of quiescent current, making it attractive for battery operated supplies. The MIC2171 is available in a 5-pin TO-220 or TO-263 for -40°C to +85°C operation.

Additional Features
    • 2.5A, 65V internal switch rating
    • 3V to 40V input voltage range
    • Current-mode operation, 2.5A peak
    • Internal cycle-by-cycle current limit
    • Thermal shutdown
    • Twice the frequency of the LM2577
    • Low external parts count
    • Operates in most switching topologies
    • 7mA quiescent current (operating)
    • Fits LT1171/LM2577 TO-220 and TO-263 sockets
Parametrics
Name
Value
Regulator Type
Step Up (Boost)
Input Voltage Range Min (V)
3
Input Voltage Range Max (V)
40
Output Voltage Range Min (V)
3.6
Output Voltage Range Max (V)
65
Output Current (mA) max
4000
Quiescent Current (mA) typ
7
Switching Frequency (kHz)
100
Operating Temp Range
-40 to 85
Vfb (V)
1.24
Duty Cycle Max (%)
95
Switch current (A) typ
4
Alternative Topology
SEPIC, Flyback

Documents

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Data Sheet


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
MIC2171WU
1.462500
2.520000
5
DDPAK
-
Matte Tin
e3
MIC2171WU-TR
1.462500
2.053333
5
DDPAK
-
Matte Tin
e3
MIC2171WT
1.983900
3.120000
5
TO-220
-
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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