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

MIC2176

76V Synchronous Buck Controller

Status: In Production

Features:

  • Hyper Speed Control™ architecture enables
  • High delta V operation (VIN = 75V and VOUT = 1.2V)
  • Small output capacitance
  • 4.5V to 75V input voltage
  • Output down to 0.8V with ±1% accuracy
  • Any Capacitor™ stable
  • Zero-ESR to high-ESR output capacitance
  • 100kHz/200kHz/300kHz switching frequency
  • Internal compensation
  • 6ms Internal soft-start
  • Foldback current limit and "hiccup" mode short-circuit protection
  • Thermal shutdown
  • Supports safe start-up into a pre-biased output
  • -40°C to +125°C junction temperature range
  • Available in 10-pin MSOP package
View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The MIC2176-1/-2/-3 is a family of constant-frequency, synchronous buck controllers featuring a unique digitally modified adaptive ON-time control architecture. The MIC2176 family operates over an input supply range of 4.5V to 75V and can be used to supply up to 15A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%, and the device operates at a constant switching frequency of 100kHz, 200kHz, and 300kHz.

Hyper Speed Control™ architecture allows for ultra-fast transient response while reducing the output capacitance and also makes (High VIN)/(Low VOUT) operation possible. This digitally modified adaptive tON ripple control architecture combines the advantages of fixed-frequency operation and fast transient response in a single device.

The MIC2176 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, internal soft-start to reduce inrush current, fold-back current limit, "hiccup" mode short-circuit protection and thermal shutdown.

Additional Features
    • Hyper Speed Control™ architecture enables
      • High delta V operation (VIN = 75V and VOUT = 1.2V)
      • Small output capacitance
    • 4.5V to 75V input voltage
    • Output down to 0.8V with ±1% accuracy
    • Any Capacitor™ stable
      • Zero-ESR to high-ESR output capacitance
    • 100kHz/200kHz/300kHz switching frequency
    • Internal compensation
    • 6ms Internal soft-start
    • Foldback current limit and "hiccup" mode short-circuit protection
    • Thermal shutdown
    • Supports safe start-up into a pre-biased output
    • -40°C to +125°C junction temperature range
    • Available in 10-pin MSOP package
Parametrics
Name
Value
Supported Topologies
Sync. Buck
Supported Outputs
1
Minimum Input Voltage (V)
4.5
Maximum Input Voltage (V)
75
Minimum Output Voltage (V)
0.8
Typical Tolerance (%)
±1
Operating Frequency (Hz)
100K, 200K, or 300k
Soft Start
True
Internal Compensation
True
Internal Voltage Bias
True
Enable Pin
True
Current Limit / Short Circuit Protection
True
Input UVLO Typ (V)
3.85
Operating Supply Current (mA)
1.4
Iq Off (µA)
700
Package
10/MSOP

Documents

Jump to:

Software Library

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
Demo & Evaluation Boards
MIC2176-2YMM-5A Evaluation Board
MIC2176-2YMM-5A Evaluation Board ( MIC2176-2YMM-5A-EV )

MIC2176-2YMM-5A Evaluation Board

Learn More
Add To Cart
Software Libraries
Analog Simulation - MIC2176

The Micrel MIC2176-1/-2/-3 is a family of constant-frequency, synchronous buck controllers featuring a unique digitally modified adaptive ON-time control architecture. The MIC2176 family operates over...

Learn More

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2176-3YMM-TR
0.024500
0.431180
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2176-3YMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2176-1YMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2176-2YMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2176-2YMM-TR
0.024500
0.431180
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2176-1YMM-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 the Microchip Store

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