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

MIC2198

32V, 500 KHz PWM Synchronous Buck Controller IC

Status: In Production

Features:

  • 4.5V to 32V input range
  • 500kHz PWM operation
  • >90% efficiency
  • Output voltage adjustable down to 0.8V
  • 20A output current capability
  • Drives all N-Channel MOSFETs
  • Logic controlled micropower shutdown
  • Cycle-by-cycle current limiting
  • Adjustable undervoltage lockout
  • Frequency foldback overcurrent protection
View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The MIC2198 is a high power 500kHz synchronous buck DC-to-DC controller. The MIC2198 operates from a wide 4.5V to 32V input and can be programmed for output voltages from 0.8V to 6V. The wide input voltage capability makes the MIC2198 an ideal solution for point-of-load DC-to-DC conversion in 5V, 12V and higher systems. The 500kHz switching frequency allows the use of a small inductor and small output capacitors. The current mode PWM control along with the external COMP pin allows for ease of stability compensation and fast transient response across a wide range of applications. An all N-Channel synchronous architecture and powerful output drivers allow up to 20A of output current capability. For higher efficiency at higher input voltages, refer to the 300kHz MIC2199. The MIC2198 is available with a junction temperature range from -40°C to 125°C.

Additional Features
    • 4.5V to 32V input range
    • 500kHz PWM operation
    • >90% efficiency
    • Output voltage adjustable down to 0.8V
    • 20A output current capability
    • Drives all N-Channel MOSFETs
    • Logic controlled micropower shutdown
    • Cycle-by-cycle current limiting
    • Adjustable undervoltage lockout
    • Frequency foldback overcurrent protection
Parametrics
Name
Value
Supported Topologies
Sync. Buck
Supported Outputs
1
Minimum Input Voltage (V)
4.5
Maximum Input Voltage (V)
32
Minimum Output Voltage (V)
0.8
Maximum Output Voltage (V)
6
Typical Tolerance (%)
±1
Duty Cycle Max (%)
0.76
Operating Frequency (Hz)
500K
Internal Voltage Bias
True
Enable Pin
True
Current Limit / Short Circuit Protection
True
Operating Supply Current (mA)
3.5
Iq Off (µA)
0.1
Package
12/4x4 MLF

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
MIC2198YML-TR
0.042100
0.147204
12
VDFN
4x4x0.9mm
NiPdAu
e4
MIC2198YML
0.042100
0.072333
12
VDFN
4x4x0.9mm
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