Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MIC2174

EOL

Status: End of Life

Features:

  • Hyper Speed Control™ architecture enables
  • High delta V operation (VIN=40V and VOUT=0.8V)
  • Smaller output capacitors than competitors
  • 3V to 40V input voltage
  • Any Capacitor™ stable
  • Zero ESR to high ESR
  • 300kHz switching frequency
  • Adjustable output from 0.8V to 5.5V (VHSD≤28V)
  • Adjustable output from 0.8V to 3.6V (VHSD >28V)
  • ±1% FB accuracy (MIC2174)
  • ±3% FB accuracy (MIC2174C)
  • Up to 94% efficiency
  • Foldback current limit and "hiccup" mode short-circuit protection
  • Thermal shutdown
  • Safe start-up into pre-biased loads
  • -40°C to +125°C junction temperature range
View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The Micrel MIC2174/MIC2174C is a fixed frequency, synchronous buck controller featuring adaptive on-time control. The MIC2174/MIC2174C operates over an input supply range of 3V to 40V at a fixed switching frequency of 300kHz and is capable of driving 25A of output current. The output voltage is adjustable down to 0.8V.

A unique Hyper Speed Control™ architecture allows for ultra fast transient response while reducing the output capacitance and also makes ultra fast transient response while reducing the output capacitance and also extremely low duty-cycle operation possible. The MIC2174/MIC2174C utilizes an adaptive tON ripple controlled architecture. A UVLO is provided to ensure proper operation under power-sag conditions to prevent the external power MOSFET from overheating. A soft-start is provided to reduce inrush current. Foldback current limit and "hiccup" mode short-circuit protection ensure FET and load protection.

The MIC2174/MIC2174C is available in a 10-pin MSOP (MAX1954A-compatible) package with an operating junction temperature range from -40°C to +125°C.

Please consider this device MIC2176

Additional Features
    • Hyper Speed Control™ architecture enables
      • High delta V operation (VIN=40V and VOUT=0.8V)
      • Smaller output capacitors than competitors
    • 3V to 40V input voltage
    • Any Capacitor™ stable
      • Zero ESR to high ESR
    • 300kHz switching frequency
    • Adjustable output from 0.8V to 5.5V (VHSD≤28V)
    • Adjustable output from 0.8V to 3.6V (VHSD >28V)
      • ±1% FB accuracy (MIC2174)
      • ±3% FB accuracy (MIC2174C)
    • Up to 94% efficiency
    • Foldback current limit and "hiccup" mode short-circuit protection
    • Thermal shutdown
    • Safe start-up into pre-biased loads
    • -40°C to +125°C junction temperature range
Parametrics
Name
Value
Supported Topologies
Sync. Buck
Supported Outputs
1
Minimum Input Voltage (V)
3
Maximum Input Voltage (V)
40
Minimum Output Voltage (V)
0.8
Maximum Output Voltage (V)
5.5
Typical Tolerance (%)
±1
Duty Cycle Max (%)
0.87
Operating Frequency (Hz)
300K
Soft Start
True
Internal Voltage Bias
True
Enable Pin
True
Current Limit / Short Circuit Protection
True
Input UVLO Typ (V)
2.7
Operating Supply Current (mA)
1.4
Iq Off (µA)
800
Package
10/MSOP

Documents

Jump to:

Software Library

Development Environment

  • Software Libraries
Software Libraries
Analog Simulation - MIC2174

The Micrel MIC2174/MIC2174C is a fixed frequency, synchronous buck controller featuring adaptive on-time control. The MIC2174/MIC2174C operates over an input supply range of 3V to 40V at a fixed...

Learn More

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2174-1YMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2174-1YMM-TR
0.024500
0.431180
10
MSOP
3x3x1.0mm
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.

Buy from Microchip

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy