Purchase MIC2194, In-stock MIC2194 From SeekIC.
Part Number: MIC2194
Description: Micrel's MIC2194 is a high efficiency PWM buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage...
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MIC2194
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General Description
MIC2194 General Description
Micrel's MIC2194 is a high efficiency PWM buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage
range allows it to efficiently step down voltages in 3.3V, 5V, and 12V systems as well as 1- or 2-cell Li Ion battery powered applications. The flexible architecture of the MIC2194 allows for it to be configured as a buck or a buck-boost converter.
The MIC2194 solution saves valuable board space. The device is housed in the space-saving SO-8 package, whose
low pin-count minimizes external components. Its 400kHz PWM operation allows a small inductor and small output
capacitors to be used. The MIC2194 can implement allceramic capacitor solutions.
The MIC2194 drives a high-side P-channel MOSFET. A low output driver impedance of 2 allows the MIC2194 to drive
large external MOSFETs to generate a wide range of output currents. The MIC2194 can achieve maximum duty cycles of 100%, which can be useful in low headroom applications.
The MIC2194 is available in an 8 pin SOIC package with a junction temperature range of 40°C to +125°C.
MIC2194 Maximum Ratings
Supply Voltage (VIN) .....................................................15V
Digital Supply Voltage (VDD) ...........................................7V
Enable Pin Voltage (VEN) ............................ 0.3V to +15V
Comp Pin Voltage (VCOMP) ........................... 0.3V to +3V
Feedback Pin Voltage (VFB) .......................... 0.3V to +3V
Current Sense Voltage (VIN VCS) .............. 0.3V to +1V
Power Dissipation (PD) ................... 285mW @ TA = 85°C
Ambient Storage Temp ....................... 65°C to +150°C
ESD Rating, Note 3 ...................................................... 2kV
Digital Supply Voltage (VDD) ...........................................7V
Enable Pin Voltage (VEN) ............................ 0.3V to +15V
Comp Pin Voltage (VCOMP) ........................... 0.3V to +3V
Feedback Pin Voltage (VFB) .......................... 0.3V to +3V
Current Sense Voltage (VIN VCS) .............. 0.3V to +1V
Power Dissipation (PD) ................... 285mW @ TA = 85°C
Ambient Storage Temp ....................... 65°C to +150°C
ESD Rating, Note 3 ...................................................... 2kV
MIC2194 Features
• 2.9V to 14V input voltage range
• 400kHz oscillator frequency
• PWM current mode control
• 2 output drivers
• 100% maximum duty cycle
• 0.5A micro-power shutdown
• Programmable UVLO
• Front edge blanking
• Cycle-by-cycle current limiting
• Frequency foldback short circuit protection
• 8-lead SOIC package
• 400kHz oscillator frequency
• PWM current mode control
• 2 output drivers
• 100% maximum duty cycle
• 0.5A micro-power shutdown
• Programmable UVLO
• Front edge blanking
• Cycle-by-cycle current limiting
• Frequency foldback short circuit protection
• 8-lead SOIC package
MIC2194 Typical Application
• Point of load power supplies
• Negative voltage buck-boost power supplies
• Distributed power systems
• Base stations
• Wireless modems
• ADSL line cards
• Servers
• Step down conversion in 3.3V, 5V, 12V systems
• 1-and 2-cell Li Ion battery operated equipment
• Negative voltage buck-boost power supplies
• Distributed power systems
• Base stations
• Wireless modems
• ADSL line cards
• Servers
• Step down conversion in 3.3V, 5V, 12V systems
• 1-and 2-cell Li Ion battery operated equipment
MIC2194 Connection Diagram
MIC2194
PDF/DataSheet Download
- Datasheet: MIC2194
- File Size: 65154 KB
- Manufacturer: MICREL [Micrel Semiconductor]
- Click here to Download
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