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

MIC2168

14.5V, 1 MHz, PWM Synchronous Buck Controller IC

Status: In Production

Features:

  • 3V to 14.5V input voltage range
  • Adjustable output voltage down to 0.8V
  • Up to 95% efficiency
  • 1MHz PWM operation
  • Adjustable current-limit senses high-side N-Channel MOSFET current
  • No external current sense resistor
  • Adaptive gate drive increases efficiency
  • Ultra-fast response with hysteretic transient recovery mode
  • Overvoltage protection protects the load in fault conditions
  • Dual mode current limit speeds up recovery time
  • "Hiccup" mode short-circuit protection
  • Internal soft-start
  • Dual function COMP and EN pin allows low-power shutdown
  • Small size MSOP 10-lead package
View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The MIC2168 is a high-efficiency, simple to use 1MHz PWM synchronous buck control IC housed in a small MSOP-10 package. The MIC2168 allows compact DC/DC solutions with a minimal external component count and cost.

The MIC2168 operates from a 3V to 14.5V input, without the need of any additional bias voltage. The output voltage can be precisely regulated down to 0.8V. The adaptive all N-Channel MOSFET drive scheme allows efficiencies over 95% across a wide load range.

The MIC2168 senses current across the high-side N-Channel MOSFET, eliminating the need for an expensive and lossy current-sense resistor. Current limit accuracy is maintained by a positive temperature coefficient that tracks the increasing RDS(ON) of the external MOSFET. Further cost and space are saved by the internal in-rush-current limiting digital soft-start.

The MIC2168 is available in a 10-pin MSOP package, with a wide junction operating range of -40°C to +125°C.

Additional Features
    • 3V to 14.5V input voltage range
    • Adjustable output voltage down to 0.8V
    • Up to 95% efficiency
    • 1MHz PWM operation
    • Adjustable current-limit senses high-side N-Channel MOSFET current
    • No external current sense resistor
    • Adaptive gate drive increases efficiency
    • Ultra-fast response with hysteretic transient recovery mode
    • Overvoltage protection protects the load in fault conditions
    • Dual mode current limit speeds up recovery time
    • "Hiccup" mode short-circuit protection
    • Internal soft-start
    • Dual function COMP and EN pin allows low-power shutdown
    • Small size MSOP 10-lead package
Parametrics
Name
Value
Supported Topologies
Sync. Buck
Supported Outputs
1
Minimum Input Voltage (V)
3
Maximum Input Voltage (V)
14.5
Minimum Output Voltage (V)
0.8
Typical Tolerance (%)
±1
Duty Cycle Max (%)
0.9
Operating Frequency (Hz)
1.0M
Soft Start
True
Internal Compensation
True
Internal Voltage Bias
True
Enable Pin
True
Current Limit / Short Circuit Protection
True
Operating Supply Current (mA)
1.6
Iq Off (µA)
50
Package
10/MSOP

Documents

Jump to:

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
MIC2168AYMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2168YMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2168YMM-TR
0.024500
0.431180
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2168AYMM-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